diff --git a/asterix-algebra/pom.xml b/asterix-algebra/pom.xml
index 350734b..86d621b 100644
--- a/asterix-algebra/pom.xml
+++ b/asterix-algebra/pom.xml
@@ -92,6 +92,12 @@
 			<version>0.0.6-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
+                <dependency>
+                        <groupId>edu.uci.ics.asterix</groupId>
+                        <artifactId>asterix-transactions</artifactId>
+                        <version>0.0.6-SNAPSHOT</version>
+                        <scope>compile</scope>
+                </dependency>
 		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>algebricks-compiler</artifactId>
@@ -99,9 +105,6 @@
 		<dependency>
 			<groupId>org.json</groupId>
 			<artifactId>json</artifactId>
-			<version>20090211</version>
-			<type>jar</type>
-			<scope>compile</scope>
 		</dependency>
 	</dependencies>
 </project>
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitPOperator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitPOperator.java
index ece3db6..5f3bb36 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitPOperator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitPOperator.java
@@ -17,7 +17,7 @@
 
 import java.util.List;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.IHyracksJobBuilder;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntime.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntime.java
index 8533e74..266fe6d 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntime.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntime.java
@@ -17,13 +17,13 @@
 
 import java.nio.ByteBuffer;
 
-import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext.TransactionType;
+import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext.TransactionType;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntime;
 import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
@@ -46,7 +46,7 @@
     private final boolean isWriteTransaction;
     private final long[] longHashes; 
 
-    private TransactionContext transactionContext;
+    private ITransactionContext transactionContext;
     private RecordDescriptor inputRecordDesc;
     private FrameTupleAccessor frameTupleAccessor;
     private FrameTupleReference frameTupleReference;
@@ -54,7 +54,7 @@
     public CommitRuntime(IHyracksTaskContext ctx, JobId jobId, int datasetId, int[] primaryKeyFields,
             boolean isWriteTransaction) {
         this.hyracksTaskCtx = ctx;
-        AsterixAppRuntimeContext runtimeCtx = (AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext()
+        IAsterixAppRuntimeContext runtimeCtx = (IAsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext()
                 .getApplicationObject();
         this.transactionManager = runtimeCtx.getTransactionSubsystem().getTransactionManager();
         this.jobId = jobId;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntimeFactory.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntimeFactory.java
index f3b6526..39ba697 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntimeFactory.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/CommitRuntimeFactory.java
@@ -15,7 +15,7 @@
 
 package edu.uci.ics.asterix.algebra.operators.physical;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntime;
 import edu.uci.ics.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/InvertedIndexPOperator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/InvertedIndexPOperator.java
index 6edcc39..d17d77c 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/InvertedIndexPOperator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/InvertedIndexPOperator.java
@@ -3,9 +3,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import edu.uci.ics.asterix.common.api.AsterixAppContextInfo;
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
-import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.dataflow.IAsterixApplicationContextInfo;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataManager;
@@ -20,10 +18,12 @@
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
 import edu.uci.ics.asterix.optimizer.rules.am.InvertedIndexAccessMethod;
 import edu.uci.ics.asterix.optimizer.rules.am.InvertedIndexAccessMethod.SearchModifierType;
 import edu.uci.ics.asterix.optimizer.rules.am.InvertedIndexJobGenParams;
+import edu.uci.ics.asterix.transaction.management.service.transaction.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ReplaceSinkOpWithCommitOpRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ReplaceSinkOpWithCommitOpRule.java
index 30ed8e7..f277d4b 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ReplaceSinkOpWithCommitOpRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ReplaceSinkOpWithCommitOpRule.java
@@ -7,9 +7,9 @@
 
 import edu.uci.ics.asterix.algebra.operators.CommitOperator;
 import edu.uci.ics.asterix.algebra.operators.physical.CommitPOperator;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.metadata.declared.AqlDataSource;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalOperator;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java
index d6e0f42..282d26b 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/typecast/StaticTypeCastUtil.java
@@ -188,8 +188,12 @@
         // if already rewritten, the required type is not null
         if (TypeComputerUtilities.getRequiredType(funcExpr) != null)
             return false;
-        TypeComputerUtilities.setRequiredAndInputTypes(funcExpr, requiredRecordType, inputRecordType);
-        return staticRecordTypeCast(funcExpr, requiredRecordType, inputRecordType, env);
+        boolean casted = staticRecordTypeCast(funcExpr, requiredRecordType, inputRecordType, env);
+        if (casted) {
+            //enforce the required type if it is statically casted
+            TypeComputerUtilities.setRequiredAndInputTypes(funcExpr, requiredRecordType, inputRecordType);
+        }
+        return casted;
     }
 
     /**
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AbstractAqlTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AbstractAqlTranslator.java
index 9fe5750..792ff25 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AbstractAqlTranslator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AbstractAqlTranslator.java
@@ -30,6 +30,7 @@
 import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinTypeMap;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
 import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 
 /**
@@ -41,6 +42,12 @@
     protected static final Map<String, BuiltinType> builtinTypeMap = AsterixBuiltinTypeMap.getBuiltinTypes();
 
     public void validateOperation(Dataverse defaultDataverse, Statement stmt) throws AsterixException {
+
+        if (AsterixClusterProperties.INSTANCE.getState().equals(AsterixClusterProperties.State.UNUSABLE)) {
+            throw new AsterixException(" Asterix Cluster is in " + AsterixClusterProperties.State.UNUSABLE + " state."
+                    + "\n One or more Node Controllers have left.\n");
+        }
+
         boolean invalidOperation = false;
         String message = null;
         String dataverse = defaultDataverse != null ? defaultDataverse.getDataverseName() : null;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java
index f769db3..a2545ff 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlExpressionToPlanTranslator.java
@@ -71,7 +71,6 @@
 import edu.uci.ics.asterix.aql.expression.WriteStatement;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
-import edu.uci.ics.asterix.common.api.AsterixAppContextInfo;
 import edu.uci.ics.asterix.common.config.AsterixMetadataProperties;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
@@ -95,6 +94,7 @@
 import edu.uci.ics.asterix.om.functions.AsterixFunctionInfo;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
 import edu.uci.ics.asterix.runtime.formats.FormatUtils;
 import edu.uci.ics.asterix.translator.CompiledStatements.ICompiledDmlStatement;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlPlusExpressionToPlanTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlPlusExpressionToPlanTranslator.java
index 9f28113..0f636a9 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlPlusExpressionToPlanTranslator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/AqlPlusExpressionToPlanTranslator.java
@@ -79,6 +79,7 @@
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.declared.FileSplitDataSink;
@@ -93,7 +94,6 @@
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.asterix.translator.CompiledStatements.ICompiledDmlStatement;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
diff --git a/asterix-app/pom.xml b/asterix-app/pom.xml
index 15af3bc..de5558d 100644
--- a/asterix-app/pom.xml
+++ b/asterix-app/pom.xml
@@ -100,9 +100,7 @@
 		<dependency>
 			<groupId>javax.servlet</groupId>
 			<artifactId>servlet-api</artifactId>
-			<version>2.5</version>
 			<type>jar</type>
-			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.eclipse.jetty</groupId>
@@ -182,6 +180,12 @@
                         <type>test-jar</type>
                         <scope>test</scope>
                 </dependency>
+                <dependency>
+                        <groupId>edu.uci.ics.asterix</groupId>
+                        <artifactId>asterix-transactions</artifactId>
+                        <version>0.0.6-SNAPSHOT</version>
+                        <scope>compile</scope>
+                </dependency>
 		<dependency>
 			<groupId>org.apache.hadoop</groupId>
 			<artifactId>hadoop-core</artifactId>
@@ -210,11 +214,6 @@
 			<scope>test</scope>
 		</dependency>
                 <dependency>
-                    <groupId>net.sourceforge.cobertura</groupId>
-                    <artifactId>cobertura</artifactId>
-                    <version>1.9.4</version>
-                </dependency>
-                <dependency>
                 	<groupId>edu.uci.ics.asterix</groupId>
                 	<artifactId>asterix-test-framework</artifactId>
                 	<version>0.0.6-SNAPSHOT</version>
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
index e1114eb..a9d20d0 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
@@ -26,9 +26,9 @@
 import edu.uci.ics.asterix.aql.expression.Query;
 import edu.uci.ics.asterix.aql.expression.visitor.AQLPrintVisitor;
 import edu.uci.ics.asterix.aql.rewrites.AqlRewriter;
-import edu.uci.ics.asterix.common.api.AsterixAppContextInfo;
 import edu.uci.ics.asterix.common.config.AsterixCompilerProperties;
 import edu.uci.ics.asterix.common.config.OptimizationConfUtil;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.dataflow.data.common.AqlExpressionTypeComputer;
 import edu.uci.ics.asterix.dataflow.data.common.AqlMergeAggregationExpressionFactory;
@@ -40,9 +40,9 @@
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
 import edu.uci.ics.asterix.optimizer.base.RuleCollections;
 import edu.uci.ics.asterix.runtime.job.listener.JobEventListenerFactory;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
 import edu.uci.ics.asterix.translator.AqlExpressionToPlanTranslator;
 import edu.uci.ics.asterix.translator.CompiledStatements.ICompiledDmlStatement;
@@ -220,7 +220,7 @@
 
         }
 
-        edu.uci.ics.asterix.transaction.management.service.transaction.JobId asterixJobId = JobIdFactory
+        edu.uci.ics.asterix.common.transactions.JobId asterixJobId = JobIdFactory
                 .generateJobId();
         queryMetadataProvider.setJobId(asterixJobId);
         AqlExpressionToPlanTranslator t = new AqlExpressionToPlanTranslator(queryMetadataProvider, varCounter,
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContext.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppRuntimeContext.java
similarity index 87%
rename from asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContext.java
rename to asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppRuntimeContext.java
index 8fe3341..e64f68f 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContext.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppRuntimeContext.java
@@ -1,8 +1,9 @@
-package edu.uci.ics.asterix.common.context;
+package edu.uci.ics.asterix.api.common;
 
 import java.io.IOException;
 import java.util.logging.Logger;
 
+import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
 import edu.uci.ics.asterix.common.config.AsterixCompilerProperties;
 import edu.uci.ics.asterix.common.config.AsterixExternalProperties;
 import edu.uci.ics.asterix.common.config.AsterixMetadataProperties;
@@ -10,15 +11,18 @@
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.common.config.AsterixTransactionProperties;
 import edu.uci.ics.asterix.common.config.IAsterixPropertiesProvider;
+import edu.uci.ics.asterix.common.context.AsterixFileMapManager;
+import edu.uci.ics.asterix.common.context.ConstantMergePolicy;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.transactions.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
 import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMBTreeIOOperationCallbackFactory;
 import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMInvertedIndexIOOperationCallbackFactory;
 import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMRTreeIOOperationCallbackFactory;
 import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTrackerFactory;
 import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceRepository;
 import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceRepositoryFactory;
-import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 import edu.uci.ics.hyracks.api.application.INCApplicationContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
@@ -26,7 +30,6 @@
 import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
 import edu.uci.ics.hyracks.storage.am.common.dataflow.IndexLifecycleManager;
-import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
@@ -46,7 +49,12 @@
 import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactory;
 import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactoryProvider;
 
-public class AsterixAppRuntimeContext implements IAsterixPropertiesProvider {
+public class AsterixAppRuntimeContext implements IAsterixAppRuntimeContext, IAsterixPropertiesProvider {
+    private static final int DEFAULT_BUFFER_CACHE_PAGE_SIZE = 32768;
+    private static final int DEFAULT_LIFECYCLEMANAGER_MEMORY_BUDGET = 1024 * 1024 * 1024; // 1GB
+    private static final int DEFAULT_MAX_OPEN_FILES = Integer.MAX_VALUE;
+    private static final int METADATA_IO_DEVICE_ID = 0;
+
     private final INCApplicationContext ncApplicationContext;
 
     private AsterixCompilerProperties compilerProperties;
@@ -58,14 +66,14 @@
     private IIndexLifecycleManager indexLifecycleManager;
     private IFileMapManager fileMapManager;
     private IBufferCache bufferCache;
-    private TransactionSubsystem txnSubsystem;
+    private ITransactionSubsystem txnSubsystem;
 
     private ILSMMergePolicy mergePolicy;
     private ILSMOperationTrackerFactory lsmBTreeOpTrackerFactory;
     private ILSMOperationTrackerFactory lsmRTreeOpTrackerFactory;
     private ILSMOperationTrackerFactory lsmInvertedIndexOpTrackerFactory;
     private ILSMIOOperationScheduler lsmIOScheduler;
-    private PersistentLocalResourceRepository localResourceRepository;
+    private ILocalResourceRepository localResourceRepository;
     private ResourceIdFactory resourceIdFactory;
     private IIOManager ioManager;
     private boolean isShuttingdown;
@@ -137,7 +145,7 @@
         return fileMapManager;
     }
 
-    public TransactionSubsystem getTransactionSubsystem() {
+    public ITransactionSubsystem getTransactionSubsystem() {
         return txnSubsystem;
     }
 
@@ -165,22 +173,6 @@
         return lsmInvertedIndexOpTrackerFactory;
     }
 
-    public ILSMIOOperationCallbackProvider getLSMBTreeIOOperationCallbackProvider() {
-        return AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER;
-    }
-
-    public ILSMIOOperationCallbackProvider getLSMRTreeIOOperationCallbackProvider() {
-        return AsterixRuntimeComponentsProvider.LSMRTREE_PROVIDER;
-    }
-
-    public ILSMIOOperationCallbackProvider getLSMInvertedIndexIOOperationCallbackProvider() {
-        return AsterixRuntimeComponentsProvider.LSMINVERTEDINDEX_PROVIDER;
-    }
-
-    public ILSMIOOperationCallbackProvider getNoOpIOOperationCallbackProvider() {
-        return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
-    }
-
     public ILSMIOOperationScheduler getLSMIOScheduler() {
         return lsmIOScheduler;
     }
@@ -197,6 +189,10 @@
         return ioManager;
     }
 
+    public int getMetaDataIODeviceId() {
+        return METADATA_IO_DEVICE_ID;
+    }
+
     @Override
     public AsterixStorageProperties getStorageProperties() {
         return storageProperties;
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContextProviderForRecovery.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppRuntimeContextProviderForRecovery.java
similarity index 83%
rename from asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContextProviderForRecovery.java
rename to asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppRuntimeContextProviderForRecovery.java
index 10660cc..8c73a63 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixAppRuntimeContextProviderForRecovery.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixAppRuntimeContextProviderForRecovery.java
@@ -1,7 +1,7 @@
-package edu.uci.ics.asterix.common.context;
+package edu.uci.ics.asterix.api.common;
 
-import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
 import edu.uci.ics.hyracks.api.io.IIOManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
@@ -32,7 +32,7 @@
     }
 
     @Override
-    public TransactionSubsystem getTransactionSubsystem() {
+    public ITransactionSubsystem getTransactionSubsystem() {
         return asterixAppRuntimeContext.getTransactionSubsystem();
     }
 
@@ -88,21 +88,26 @@
 
     @Override
     public ILSMIOOperationCallbackProvider getLSMBTreeIOOperationCallbackProvider() {
-        return asterixAppRuntimeContext.getLSMBTreeIOOperationCallbackProvider();
+        // TODO Auto-generated method stub
+        return null;
     }
 
     @Override
     public ILSMIOOperationCallbackProvider getLSMRTreeIOOperationCallbackProvider() {
-        return asterixAppRuntimeContext.getLSMRTreeIOOperationCallbackProvider();
+        // TODO Auto-generated method stub
+        return null;
     }
 
     @Override
     public ILSMIOOperationCallbackProvider getLSMInvertedIndexIOOperationCallbackProvider() {
-        return asterixAppRuntimeContext.getLSMInvertedIndexIOOperationCallbackProvider();
+        // TODO Auto-generated method stub
+        return null;
     }
 
     @Override
     public ILSMIOOperationCallbackProvider getNoOpIOOperationCallbackProvider() {
-        return asterixAppRuntimeContext.getNoOpIOOperationCallbackProvider();
+        // TODO Auto-generated method stub
+        return null;
     }
+
 }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
index 272050f..fb87a8e1 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/AsterixHyracksIntegrationUtil.java
@@ -1,5 +1,6 @@
 package edu.uci.ics.asterix.api.common;
 
+import java.io.File;
 import java.util.EnumSet;
 
 import edu.uci.ics.asterix.common.config.GlobalConfig;
@@ -50,6 +51,8 @@
         ncConfig1.datasetIPAddress = "127.0.0.1";
         ncConfig1.resultHistorySize = 1000;
         ncConfig1.nodeId = NC1_ID;
+        ncConfig1.ioDevices = System.getProperty("java.io.tmpdir") + File.separator + "nc1/iodevice0" + ","
+                + System.getProperty("java.io.tmpdir") + File.separator + "nc1/iodevice1";
         ncConfig1.appNCMainClass = NCApplicationEntryPoint.class.getName();
         nc1 = new NodeControllerService(ncConfig1);
         nc1.start();
@@ -62,6 +65,8 @@
         ncConfig2.datasetIPAddress = "127.0.0.1";
         ncConfig2.resultHistorySize = 1000;
         ncConfig2.nodeId = NC2_ID;
+        ncConfig2.ioDevices = System.getProperty("java.io.tmpdir") + File.separator + "nc2/iodevice0" + ","
+                + System.getProperty("java.io.tmpdir") + File.separator + "nc2/iodevice1";
         ncConfig2.appNCMainClass = NCApplicationEntryPoint.class.getName();
         nc2 = new NodeControllerService(ncConfig2);
         nc2.start();
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
index 12fa51a..d378429 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/APIServlet.java
@@ -23,6 +23,7 @@
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.result.ResultReader;
+import edu.uci.ics.asterix.result.ResultUtils;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 import edu.uci.ics.hyracks.api.dataset.IHyracksDataset;
 import edu.uci.ics.hyracks.client.dataset.HyracksDataset;
@@ -80,6 +81,7 @@
             duration = (endTime - startTime) / 1000.00;
             out.println("<PRE>Duration of all jobs: " + duration + "</PRE>");
         } catch (ParseException | TokenMgrError | edu.uci.ics.asterix.aqlplus.parser.TokenMgrError pe) {
+            GlobalConfig.ASTERIX_LOGGER.log(Level.INFO, pe.toString(), pe);
             out.println("<pre class=\"error\">");
             String message = pe.getMessage();
             message = message.replace("<", "&lt");
@@ -99,9 +101,10 @@
             }
             out.println("</pre>");
         } catch (Exception e) {
-            GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, e.getMessage(), e);
+            String errorMessage = ResultUtils.extractErrorMessage(e);
+            GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, errorMessage, e);
             out.println("<pre class=\"error\">");
-            out.println(e.getMessage());
+            out.println(errorMessage);
             out.println("</pre>");
         }
     }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/RESTAPIServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/RESTAPIServlet.java
index 2c15578..dff759d 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/RESTAPIServlet.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/RESTAPIServlet.java
@@ -97,9 +97,9 @@
             aqlTranslator.compileAndExecute(hcc, hds, asyncResults);
 
         } catch (ParseException pe) {
-            GlobalConfig.ASTERIX_LOGGER.log(Level.INFO, pe.getMessage(), pe);
+            GlobalConfig.ASTERIX_LOGGER.log(Level.INFO, pe.toString(), pe);
             StringBuilder errorMessage = new StringBuilder();
-            String message = pe.getMessage();
+            String message = pe.getLocalizedMessage();
             message = message.replace("<", "&lt");
             message = message.replace(">", "&gt");
             errorMessage.append("SyntaxError:" + message + "\n");
@@ -113,10 +113,9 @@
             JSONObject errorResp = ResultUtils.getErrorResponse(2, errorMessage.toString());
             out.write(errorResp.toString());
         } catch (Exception e) {
-            GlobalConfig.ASTERIX_LOGGER.log(Level.INFO, e.getMessage(), e);
-            StringBuilder errorMessage = new StringBuilder();
-            errorMessage.append(e.getMessage());
-            JSONObject errorResp = ResultUtils.getErrorResponse(99, errorMessage.toString());
+            String errorMessage = ResultUtils.extractErrorMessage(e);
+            GlobalConfig.ASTERIX_LOGGER.log(Level.SEVERE, errorMessage, e);
+            JSONObject errorResp = ResultUtils.getErrorResponse(99, errorMessage);
             out.write(errorResp.toString());
         }
     }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java
index cb786d7..0fbe9fa 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/java/AsterixJavaClient.java
@@ -9,6 +9,11 @@
 import edu.uci.ics.asterix.api.common.Job;
 import edu.uci.ics.asterix.api.common.SessionConfig;
 import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.aql.translator.AqlTranslator;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
+import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
+import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.asterix.aql.parser.AQLParser;
 import edu.uci.ics.asterix.aql.parser.ParseException;
 import edu.uci.ics.asterix.aql.translator.AqlTranslator;
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
index d4e5e22..911f6fd 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
@@ -62,6 +62,7 @@
 import edu.uci.ics.asterix.aql.util.FunctionUtils;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.file.DatasetOperations;
@@ -90,7 +91,6 @@
 import edu.uci.ics.asterix.om.types.TypeSignature;
 import edu.uci.ics.asterix.result.ResultReader;
 import edu.uci.ics.asterix.result.ResultUtils;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetIdFactory;
 import edu.uci.ics.asterix.translator.AbstractAqlTranslator;
 import edu.uci.ics.asterix.translator.CompiledStatements.CompiledBeginFeedStatement;
@@ -384,11 +384,7 @@
         Dataset dataset = null;
         try {
             DatasetDecl dd = (DatasetDecl) stmt;
-            dataverseName = dd.getDataverse() != null ? dd.getDataverse().getValue()
-                    : activeDefaultDataverse != null ? activeDefaultDataverse.getDataverseName() : null;
-            if (dataverseName == null) {
-                throw new AlgebricksException(" dataverse not specified ");
-            }
+            dataverseName = getActiveDataverseName(dd.getDataverse());
             datasetName = dd.getName().getValue();
 
             DatasetType dsType = dd.getDatasetType();
@@ -553,11 +549,7 @@
         JobSpecification spec = null;
         try {
             CreateIndexStatement stmtCreateIndex = (CreateIndexStatement) stmt;
-            dataverseName = stmtCreateIndex.getDataverseName() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : stmtCreateIndex.getDataverseName().getValue();
-            if (dataverseName == null) {
-                throw new AlgebricksException(" dataverse not specified ");
-            }
+            dataverseName = getActiveDataverseName(stmtCreateIndex.getDataverseName());
             datasetName = stmtCreateIndex.getDatasetName().getValue();
 
             Dataset ds = MetadataManager.INSTANCE.getDataset(metadataProvider.getMetadataTxnContext(), dataverseName,
@@ -686,15 +678,11 @@
 
         try {
             TypeDecl stmtCreateType = (TypeDecl) stmt;
-            String dataverseName = stmtCreateType.getDataverseName() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : stmtCreateType.getDataverseName().getValue();
-            if (dataverseName == null) {
-                throw new AlgebricksException(" dataverse not specified ");
-            }
+            String dataverseName = getActiveDataverseName(stmtCreateType.getDataverseName());
             String typeName = stmtCreateType.getIdent().getValue();
             Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverseName);
             if (dv == null) {
-                throw new AlgebricksException("Unknonw dataverse " + dataverseName);
+                throw new AlgebricksException("Unknown dataverse " + dataverseName);
             }
             Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName, typeName);
             if (dt != null) {
@@ -849,11 +837,7 @@
         List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
         try {
             DropStatement stmtDelete = (DropStatement) stmt;
-            dataverseName = stmtDelete.getDataverseName() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : stmtDelete.getDataverseName().getValue();
-            if (dataverseName == null) {
-                throw new AlgebricksException(" dataverse not specified ");
-            }
+            dataverseName = getActiveDataverseName(stmtDelete.getDataverseName());
             datasetName = stmtDelete.getDatasetName().getValue();
 
             Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
@@ -960,11 +944,7 @@
         try {
             IndexDropStatement stmtIndexDrop = (IndexDropStatement) stmt;
             datasetName = stmtIndexDrop.getDatasetName().getValue();
-            dataverseName = stmtIndexDrop.getDataverseName() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : stmtIndexDrop.getDataverseName().getValue();
-            if (dataverseName == null) {
-                throw new AlgebricksException(" dataverse not specified ");
-            }
+            dataverseName = getActiveDataverseName(stmtIndexDrop.getDataverseName());
 
             Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
             if (ds == null) {
@@ -1062,11 +1042,7 @@
 
         try {
             TypeDropStatement stmtTypeDrop = (TypeDropStatement) stmt;
-            String dataverseName = stmtTypeDrop.getDataverseName() == null ? (activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName()) : stmtTypeDrop.getDataverseName().getValue();
-            if (dataverseName == null) {
-                throw new AlgebricksException(" dataverse not specified ");
-            }
+            String dataverseName = getActiveDataverseName(stmtTypeDrop.getDataverseName());
             String typeName = stmtTypeDrop.getTypeName().getValue();
             Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName, typeName);
             if (dt == null) {
@@ -1117,11 +1093,7 @@
 
         try {
             CreateFunctionStatement cfs = (CreateFunctionStatement) stmt;
-            String dataverse = cfs.getSignature().getNamespace() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : cfs.getSignature().getNamespace();
-            if (dataverse == null) {
-                throw new AlgebricksException(" dataverse not specified ");
-            }
+            String dataverse = getActiveDataverseName(cfs.getSignature().getNamespace());
             Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverse);
             if (dv == null) {
                 throw new AlgebricksException("There is no dataverse with this name " + dataverse + ".");
@@ -1174,8 +1146,7 @@
         List<JobSpecification> jobsToExecute = new ArrayList<JobSpecification>();
         try {
             LoadFromFileStatement loadStmt = (LoadFromFileStatement) stmt;
-            String dataverseName = loadStmt.getDataverseName() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : loadStmt.getDataverseName().getValue();
+            String dataverseName = getActiveDataverseName(loadStmt.getDataverseName());
             CompiledLoadFromFileStatement cls = new CompiledLoadFromFileStatement(dataverseName, loadStmt
                     .getDatasetName().getValue(), loadStmt.getAdapter(), loadStmt.getProperties(),
                     loadStmt.dataIsAlreadySorted());
@@ -1223,8 +1194,7 @@
         try {
             metadataProvider.setWriteTransaction(true);
             WriteFromQueryResultStatement st1 = (WriteFromQueryResultStatement) stmt;
-            String dataverseName = st1.getDataverseName() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : st1.getDataverseName().getValue();
+            String dataverseName = getActiveDataverseName(st1.getDataverseName());
             CompiledWriteFromQueryResultStatement clfrqs = new CompiledWriteFromQueryResultStatement(dataverseName, st1
                     .getDatasetName().getValue(), st1.getQuery(), st1.getVarCounter());
 
@@ -1255,8 +1225,7 @@
         try {
             metadataProvider.setWriteTransaction(true);
             InsertStatement stmtInsert = (InsertStatement) stmt;
-            String dataverseName = stmtInsert.getDataverseName() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : stmtInsert.getDataverseName().getValue();
+            String dataverseName = getActiveDataverseName(stmtInsert.getDataverseName());
             CompiledInsertStatement clfrqs = new CompiledInsertStatement(dataverseName, stmtInsert.getDatasetName()
                     .getValue(), stmtInsert.getQuery(), stmtInsert.getVarCounter());
             JobSpecification compiled = rewriteCompileQuery(metadataProvider, clfrqs.getQuery(), clfrqs);
@@ -1289,8 +1258,7 @@
         try {
             metadataProvider.setWriteTransaction(true);
             DeleteStatement stmtDelete = (DeleteStatement) stmt;
-            String dataverseName = stmtDelete.getDataverseName() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : stmtDelete.getDataverseName().getValue();
+            String dataverseName = getActiveDataverseName(stmtDelete.getDataverseName());
             CompiledDeleteStatement clfrqs = new CompiledDeleteStatement(stmtDelete.getVariableExpr(), dataverseName,
                     stmtDelete.getDatasetName().getValue(), stmtDelete.getCondition(), stmtDelete.getVarCounter(),
                     metadataProvider);
@@ -1340,8 +1308,7 @@
 
         try {
             BeginFeedStatement bfs = (BeginFeedStatement) stmt;
-            String dataverseName = bfs.getDataverseName() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : bfs.getDataverseName().getValue();
+            String dataverseName = getActiveDataverseName(bfs.getDataverseName());
 
             CompiledBeginFeedStatement cbfs = new CompiledBeginFeedStatement(dataverseName, bfs.getDatasetName()
                     .getValue(), bfs.getQuery(), bfs.getVarCounter());
@@ -1389,8 +1356,7 @@
 
         try {
             ControlFeedStatement cfs = (ControlFeedStatement) stmt;
-            String dataverseName = cfs.getDataverseName() == null ? activeDefaultDataverse == null ? null
-                    : activeDefaultDataverse.getDataverseName() : cfs.getDatasetName().getValue();
+            String dataverseName = getActiveDataverseName(cfs.getDataverseName());
             CompiledControlFeedStatement clcfs = new CompiledControlFeedStatement(cfs.getOperationType(),
                     dataverseName, cfs.getDatasetName().getValue(), cfs.getAlterAdapterConfParams());
             JobSpecification jobSpec = FeedOperations.buildControlFeedJobSpec(clcfs, metadataProvider);
@@ -1463,6 +1429,7 @@
 
             return queryResult;
         } catch (Exception e) {
+            e.printStackTrace();
             if (bActiveTxn) {
                 abort(e, e, mdTxnCtx);
             }
@@ -1535,6 +1502,23 @@
         return format;
     }
 
+    private String getActiveDataverseName(String dataverse)
+            throws AlgebricksException {
+        if (dataverse != null) {
+            return dataverse;
+        }
+        if (activeDefaultDataverse != null) {
+            return activeDefaultDataverse.getDataverseName();
+        }
+        throw new AlgebricksException("dataverse not specified");
+    }
+    
+    private String getActiveDataverseName(Identifier dataverse)
+            throws AlgebricksException {
+        return getActiveDataverseName(
+                dataverse != null ? dataverse.getValue() : null);
+    }
+    
     private void acquireWriteLatch() {
         MetadataManager.INSTANCE.acquireWriteLatch();
     }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
index 3600bea..e22c215 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/DatasetOperations.java
@@ -22,12 +22,11 @@
 import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.api.common.Job;
-import edu.uci.ics.asterix.common.api.AsterixAppContextInfo;
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
 import edu.uci.ics.asterix.common.config.OptimizationConfUtil;
-import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
 import edu.uci.ics.asterix.metadata.MetadataManager;
@@ -40,10 +39,11 @@
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
 import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.resource.LSMBTreeLocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.translator.CompiledStatements.CompiledDatasetDropStatement;
 import edu.uci.ics.asterix.translator.CompiledStatements.CompiledLoadFromFileStatement;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
@@ -171,7 +171,7 @@
         //prepare a LocalResourceMetadata which will be stored in NC's local resource repository
         ILocalResourceMetadata localResourceMetadata = new LSMBTreeLocalResourceMetadata(typeTraits,
                 comparatorFactories, blooFilterKeyFields, true, storageProperties.getMemoryComponentPageSize(),
-                storageProperties.getMemoryComponentNumPages());
+                storageProperties.getMemoryComponentNumPages(), fs);
         ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
                 localResourceMetadata, LocalResource.LSMBTreeResource);
 
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
index 67bdabb..90a1ef0 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/IndexOperations.java
@@ -1,12 +1,12 @@
 package edu.uci.ics.asterix.file;
 
-import edu.uci.ics.asterix.common.api.AsterixAppContextInfo;
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.common.config.OptimizationConfUtil;
-import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
+import edu.uci.ics.asterix.transaction.management.service.transaction.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
 import edu.uci.ics.asterix.translator.CompiledStatements.CompiledIndexDropStatement;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeCreator.java
index c3a2c01..ebd1a9c 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeCreator.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryBTreeCreator.java
@@ -2,11 +2,11 @@
 
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.common.config.IAsterixPropertiesProvider;
-import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.resource.LSMBTreeLocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.core.jobgen.impl.ConnectorPolicyAssignmentPolicy;
@@ -40,7 +40,8 @@
         //prepare a LocalResourceMetadata which will be stored in NC's local resource repository
         ILocalResourceMetadata localResourceMetadata = new LSMBTreeLocalResourceMetadata(
                 secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories, secondaryBloomFilterKeyFields, false,
-                storageProperties.getMemoryComponentPageSize(), storageProperties.getMemoryComponentNumPages());
+                storageProperties.getMemoryComponentPageSize(), storageProperties.getMemoryComponentNumPages(),
+                secondaryFileSplitProvider.getFileSplits());
         ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
                 localResourceMetadata, LocalResource.LSMBTreeResource);
 
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexCreator.java
index 253df4b..b79102b 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexCreator.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryIndexCreator.java
@@ -19,11 +19,9 @@
 import java.io.IOException;
 import java.util.List;
 
-import edu.uci.ics.asterix.common.api.AsterixAppContextInfo;
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.IAsterixPropertiesProvider;
-import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryBooleanInspectorImpl;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
@@ -37,9 +35,11 @@
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
 import edu.uci.ics.asterix.runtime.evaluators.functions.AndDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.IsNullDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NotDescriptor;
+import edu.uci.ics.asterix.transaction.management.service.transaction.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
@@ -76,7 +76,8 @@
 import edu.uci.ics.hyracks.storage.am.lsm.btree.dataflow.LSMBTreeDataflowHelperFactory;
 
 @SuppressWarnings("rawtypes")
-// TODO: We should eventually have a hierarchy of classes that can create all possible index job specs, 
+// TODO: We should eventually have a hierarchy of classes that can create all
+// possible index job specs,
 // not just for creation.
 public abstract class SecondaryIndexCreator {
     protected final PhysicalOptimizationConfig physOptConf;
@@ -336,16 +337,13 @@
         for (int i = 0; i < numSecondaryKeyFields + numPrimaryKeys; i++) {
             fieldPermutation[i] = i;
         }
-        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadataProvider
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName,
-                        secondaryIndexName);
         TreeIndexBulkLoadOperatorDescriptor treeIndexBulkLoadOp = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER,
-                secondarySplitsAndConstraint.first, secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories,
+                secondaryFileSplitProvider, secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories,
                 secondaryBloomFilterKeyFields, fieldPermutation, fillFactor, false, numElementsHint,
                 dataflowHelperFactory, NoOpOperationCallbackFactory.INSTANCE);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, treeIndexBulkLoadOp,
-                secondarySplitsAndConstraint.second);
+                secondaryPartitionConstraint);
         return treeIndexBulkLoadOp;
     }
 
@@ -365,7 +363,8 @@
         }
         ICopyEvaluatorFactory selectCond = null;
         if (numSecondaryKeyFields > 1) {
-            // Create conjunctive condition where all secondary index keys must satisfy 'is not null'.
+            // Create conjunctive condition where all secondary index keys must
+            // satisfy 'is not null'.
             AndDescriptor andDesc = new AndDescriptor();
             selectCond = andDesc.createEvaluatorFactory(andArgsEvalFactories);
         } else {
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryInvertedIndexCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryInvertedIndexCreator.java
index 366e247..ef94ec2 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryInvertedIndexCreator.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryInvertedIndexCreator.java
@@ -5,7 +5,6 @@
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
 import edu.uci.ics.asterix.common.config.IAsterixPropertiesProvider;
-import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.entities.Index;
@@ -15,6 +14,7 @@
 import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.resource.LSMInvertedIndexLocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
@@ -157,7 +157,7 @@
         ILocalResourceMetadata localResourceMetadata = new LSMInvertedIndexLocalResourceMetadata(invListsTypeTraits,
                 primaryComparatorFactories, tokenTypeTraits, tokenComparatorFactories, tokenizerFactory,
                 storageProperties.getMemoryComponentPageSize(), storageProperties.getMemoryComponentNumPages(),
-                isPartitioned);
+                isPartitioned, secondaryFileSplitProvider.getFileSplits());
         ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
                 localResourceMetadata, LocalResource.LSMInvertedIndexResource);
 
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryRTreeCreator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryRTreeCreator.java
index 89a59e8..b7e4886 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryRTreeCreator.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/SecondaryRTreeCreator.java
@@ -4,7 +4,6 @@
 
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.common.config.IAsterixPropertiesProvider;
-import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.dataflow.data.nontagged.valueproviders.AqlPrimitiveValueProviderFactory;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
@@ -18,6 +17,7 @@
 import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.resource.LSMRTreeLocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
+import edu.uci.ics.asterix.transaction.management.service.transaction.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.translator.CompiledStatements.CompiledCreateIndexStatement;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraintHelper;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
@@ -65,7 +65,7 @@
                 secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories, primaryComparatorFactories,
                 valueProviderFactories, RTreePolicyType.RTREE, AqlMetadataProvider.proposeLinearizer(keyType,
                         secondaryComparatorFactories.length), storageProperties.getMemoryComponentPageSize(),
-                storageProperties.getMemoryComponentNumPages());
+                storageProperties.getMemoryComponentNumPages(), secondaryFileSplitProvider.getFileSplits());
         ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
                 localResourceMetadata, LocalResource.LSMRTreeResource);
 
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java
index 01cbca0..5d4f6ec 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/CCApplicationEntryPoint.java
@@ -13,12 +13,12 @@
 import edu.uci.ics.asterix.api.http.servlet.QueryResultAPIServlet;
 import edu.uci.ics.asterix.api.http.servlet.QueryStatusAPIServlet;
 import edu.uci.ics.asterix.api.http.servlet.UpdateAPIServlet;
-import edu.uci.ics.asterix.common.api.AsterixAppContextInfo;
 import edu.uci.ics.asterix.common.config.AsterixExternalProperties;
 import edu.uci.ics.asterix.common.config.AsterixMetadataProperties;
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
 import edu.uci.ics.asterix.metadata.bootstrap.AsterixStateProxy;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
 import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
 import edu.uci.ics.hyracks.api.application.ICCApplicationEntryPoint;
 import edu.uci.ics.hyracks.api.client.HyracksConnection;
@@ -54,6 +54,7 @@
         webServer.start();
         setupJSONAPIServer(externalProperties);
         jsonAPIServer.start();
+        ccAppCtx.addClusterLifecycleListener(ClusterLifecycleListener.INSTANCE);
     }
 
     @Override
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java
new file mode 100644
index 0000000..e8a1ad2
--- /dev/null
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.hyracks.bootstrap;
+
+import java.util.Map;
+import java.util.Set;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
+import edu.uci.ics.hyracks.api.application.IClusterLifecycleListener;
+
+public class ClusterLifecycleListener implements IClusterLifecycleListener {
+
+    public static ClusterLifecycleListener INSTANCE = new ClusterLifecycleListener();
+
+    private ClusterLifecycleListener() {
+    }
+
+    private static final Logger LOGGER = Logger.getLogger(ClusterLifecycleListener.class.getName());
+
+    @Override
+    public void notifyNodeJoin(String nodeId, Map<String, String> ncConfiguration) {
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info("NC: " + nodeId + " joined");
+        }
+        AsterixClusterProperties.INSTANCE.addNCConfiguration(nodeId, ncConfiguration);
+    }
+
+    public void notifyNodeFailure(Set<String> deadNodeIds) {
+        for (String deadNode : deadNodeIds) {
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.info("NC: " + deadNode + " left");
+            }
+            AsterixClusterProperties.INSTANCE.removeNCConfiguration(deadNode);
+        }
+
+    }
+
+}
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java
index 7dad984..4569088 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/NCApplicationEntryPoint.java
@@ -5,16 +5,18 @@
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import edu.uci.ics.asterix.api.common.AsterixAppRuntimeContext;
+import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
 import edu.uci.ics.asterix.common.config.AsterixMetadataProperties;
-import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
+import edu.uci.ics.asterix.common.config.IAsterixPropertiesProvider;
+import edu.uci.ics.asterix.common.transactions.IRecoveryManager;
+import edu.uci.ics.asterix.common.transactions.IRecoveryManager.SystemState;
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.MetadataNode;
 import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
 import edu.uci.ics.asterix.metadata.api.IMetadataNode;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataBootstrap;
 import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceRepository;
-import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager;
-import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager.SystemState;
 import edu.uci.ics.hyracks.api.application.INCApplicationContext;
 import edu.uci.ics.hyracks.api.application.INCApplicationEntryPoint;
 
@@ -22,7 +24,7 @@
     private static final Logger LOGGER = Logger.getLogger(NCApplicationEntryPoint.class.getName());
 
     private INCApplicationContext ncApplicationContext = null;
-    private AsterixAppRuntimeContext runtimeContext;
+    private IAsterixAppRuntimeContext runtimeContext;
     private String nodeId;
     private boolean isMetadataNode = false;
     private boolean stopInitiated = false;
@@ -87,7 +89,7 @@
     @Override
     public void notifyStartupComplete() throws Exception {
         IAsterixStateProxy proxy = (IAsterixStateProxy) ncApplicationContext.getDistributedState();
-        AsterixMetadataProperties metadataProperties = runtimeContext.getMetadataProperties();
+        AsterixMetadataProperties metadataProperties = ((IAsterixPropertiesProvider)runtimeContext).getMetadataProperties();
 
         if (systemState == SystemState.NEW_UNIVERSE) {
             if (LOGGER.isLoggable(Level.INFO)) {
@@ -111,7 +113,7 @@
             }
             MetadataManager.INSTANCE = new MetadataManager(proxy, metadataProperties);
             MetadataManager.INSTANCE.init();
-            MetadataBootstrap.startUniverse(runtimeContext, ncApplicationContext,
+            MetadataBootstrap.startUniverse( ((IAsterixPropertiesProvider)runtimeContext), ncApplicationContext,
                     systemState == SystemState.NEW_UNIVERSE);
             MetadataBootstrap.startDDLRecovery();
         }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
index dec3128..02cf6a4 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
@@ -79,4 +79,24 @@
             // TODO(madhusudancs): Figure out what to do when JSONException occurs while building the results.
         }
     }
+
+    /**
+     * extract meaningful part of a stack trace:
+     * a. the causes in the stack trace hierarchy
+     * b. the top exception for each cause
+     * 
+     * @param e
+     * @return the contacted message containing a and b.
+     */
+    public static String extractErrorMessage(Throwable e) {
+        StringBuilder errorMessageBuilder = new StringBuilder();
+        Throwable cause = e;
+        errorMessageBuilder.append(cause.getLocalizedMessage());
+        while (cause != null) {
+            StackTraceElement[] stackTraceElements = cause.getStackTrace();
+            errorMessageBuilder.append(stackTraceElements.length > 0 ? "\n caused by: " + stackTraceElements[0] : "");
+            cause = cause.getCause();
+        }
+        return errorMessageBuilder.toString();
+    }
 }
diff --git a/asterix-app/src/test/resources/AQLTS/queries/3.aql b/asterix-app/src/test/resources/AQLTS/queries/3.aql
deleted file mode 100644
index 3d71b27..0000000
--- a/asterix-app/src/test/resources/AQLTS/queries/3.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-for $current_sig in dataset('SIGroup')
-where
-   every $old_sig in dataset('SIGroup', getCurrentDateTime() - dtduration(0, 24, 0, 0))
-   satisfies $old_sig.name != $current_sig.name
-return $current_sig
diff --git a/asterix-app/src/test/resources/optimizerts/results/fj-phase1.plan b/asterix-app/src/test/resources/optimizerts/results/fj-phase1.plan
index 494b208..76fd0bd 100644
--- a/asterix-app/src/test/resources/optimizerts/results/fj-phase1.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/fj-phase1.plan
@@ -11,11 +11,11 @@
                           -- NESTED_TUPLE_SOURCE  |LOCAL|
                     }
               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                -- STABLE_SORT [$$23(ASC), $$6(ASC)]  |PARTITIONED|
+                -- STABLE_SORT [$$23(ASC), $$4(ASC)]  |PARTITIONED|
                   -- HASH_PARTITION_EXCHANGE [$$23]  |PARTITIONED|
                     -- STREAM_PROJECT  |PARTITIONED|
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                        -- HYBRID_HASH_JOIN [$$1][$$6]  |PARTITIONED|
+                        -- HYBRID_HASH_JOIN [$$1][$$4]  |PARTITIONED|
                           -- HASH_PARTITION_EXCHANGE [$$1]  |PARTITIONED|
                             -- STREAM_PROJECT  |PARTITIONED|
                               -- UNNEST  |PARTITIONED|
@@ -25,7 +25,7 @@
                                       -- DATASOURCE_SCAN  |PARTITIONED|
                                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                           -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                          -- HASH_PARTITION_EXCHANGE [$$6]  |PARTITIONED|
+                          -- HASH_PARTITION_EXCHANGE [$$4]  |PARTITIONED|
                             -- RUNNING_AGGREGATE  |PARTITIONED|
                               -- STREAM_PROJECT  |PARTITIONED|
                                 -- SORT_MERGE_EXCHANGE [$$24(DESC) ]  |PARTITIONED|
@@ -37,13 +37,13 @@
                                                   -- NESTED_TUPLE_SOURCE  |LOCAL|
                                               }
                                         -- HASH_PARTITION_MERGE_EXCHANGE MERGE:[$$30(ASC)] HASH:[$$30]  |PARTITIONED|
-                                          -- PRE_CLUSTERED_GROUP_BY[$$5]  |PARTITIONED|
+                                          -- PRE_CLUSTERED_GROUP_BY[$$3]  |PARTITIONED|
                                                   {
                                                     -- AGGREGATE  |LOCAL|
                                                       -- NESTED_TUPLE_SOURCE  |LOCAL|
                                                   }
                                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                              -- STABLE_SORT [$$5(ASC)]  |PARTITIONED|
+                                              -- STABLE_SORT [$$3(ASC)]  |PARTITIONED|
                                                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                                   -- STREAM_PROJECT  |PARTITIONED|
                                                     -- UNNEST  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inlined_q18_large_volume_customer.plan b/asterix-app/src/test/resources/optimizerts/results/inlined_q18_large_volume_customer.plan
index 0713f96..0c7b95d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inlined_q18_large_volume_customer.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inlined_q18_large_volume_customer.plan
@@ -28,7 +28,7 @@
                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                         -- STREAM_PROJECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                            -- HYBRID_HASH_JOIN [$$57][$$4]  |PARTITIONED|
+                                            -- HYBRID_HASH_JOIN [$$57][$$3]  |PARTITIONED|
                                               -- HASH_PARTITION_EXCHANGE [$$57]  |PARTITIONED|
                                                 -- STREAM_PROJECT  |PARTITIONED|
                                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
@@ -47,7 +47,7 @@
                                                               -- DATASOURCE_SCAN  |PARTITIONED|
                                                                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                                                   -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
-                                              -- HASH_PARTITION_EXCHANGE [$$4]  |PARTITIONED|
+                                              -- HASH_PARTITION_EXCHANGE [$$3]  |PARTITIONED|
                                                 -- STREAM_PROJECT  |PARTITIONED|
                                                   -- STREAM_SELECT  |PARTITIONED|
                                                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-contains.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-contains.plan
index 84bc4de..d7c4c08 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-contains.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-contains.plan
@@ -11,7 +11,7 @@
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                       -- STREAM_PROJECT  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                          -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                               -- ASSIGN  |PARTITIONED|
                                 -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-check.plan
index d7a4c06..1f53ded 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-check.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance-check.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance.plan
index d7a4c06..1f53ded 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-edit-distance.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-edit-distance.plan
index 021f810..8a40be1 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-edit-distance.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-edit-distance.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-jaccard.plan
index aec97d2..f26c81d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-fuzzyeq-jaccard.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard-check.plan
index 2a2ccc4..7ad0078 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard-check.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard-check.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard.plan
index 2a2ccc4..7ad0078 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ngram-jaccard.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-check.plan
index 7e8a594..7fcefa6 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-check.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance-check.plan
@@ -11,7 +11,7 @@
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                       -- STREAM_PROJECT  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                          -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                               -- ASSIGN  |PARTITIONED|
                                 -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance.plan
index 7e8a594..7fcefa6 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-edit-distance.plan
@@ -11,7 +11,7 @@
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                       -- STREAM_PROJECT  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                          -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                               -- ASSIGN  |PARTITIONED|
                                 -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-edit-distance.plan
index 5eef58e..dca0403 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-edit-distance.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-edit-distance.plan
@@ -11,7 +11,7 @@
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                       -- STREAM_PROJECT  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                          -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                               -- ASSIGN  |PARTITIONED|
                                 -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-jaccard.plan
index d7a4c06..1f53ded 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-fuzzyeq-jaccard.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard-check.plan
index aec97d2..f26c81d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard-check.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard-check.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard.plan
index aec97d2..f26c81d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/olist-jaccard.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-fuzzyeq-jaccard.plan
index d7a4c06..1f53ded 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-fuzzyeq-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-fuzzyeq-jaccard.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard-check.plan
index aec97d2..f26c81d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard-check.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard-check.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard.plan
index aec97d2..f26c81d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/ulist-jaccard.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-fuzzyeq-jaccard.plan
index aec97d2..f26c81d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-fuzzyeq-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-fuzzyeq-jaccard.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard-check.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard-check.plan
index 2a2ccc4..7ad0078 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard-check.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard-check.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard.plan
index 2a2ccc4..7ad0078 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-basic/word-jaccard.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.plan
index 3028f9a..a59363b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_01.plan
@@ -11,7 +11,7 @@
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                       -- STREAM_PROJECT  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                          -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                               -- ASSIGN  |PARTITIONED|
                                 -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.plan
index 3028f9a..a59363b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let-panic-nopanic_02.plan
@@ -11,7 +11,7 @@
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                       -- STREAM_PROJECT  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                          -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                               -- ASSIGN  |PARTITIONED|
                                 -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let.plan
index aec97d2..f26c81d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-edit-distance-check-let.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-let.plan
index 78e761f..e4516f1 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-let.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-let.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-multi-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-multi-let.plan
index 57730fe..6900fe8 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-multi-let.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ngram-jaccard-check-multi-let.plan
@@ -13,7 +13,7 @@
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- STREAM_PROJECT  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                   -- ASSIGN  |PARTITIONED|
                                     -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-edit-distance-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-edit-distance-check-let.plan
index a1a1253..e62367e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-edit-distance-check-let.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-edit-distance-check-let.plan
@@ -11,7 +11,7 @@
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                       -- STREAM_PROJECT  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                          -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                          -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                               -- ASSIGN  |PARTITIONED|
                                 -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-jaccard-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-jaccard-check-let.plan
index 2a2ccc4..7ad0078 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-jaccard-check-let.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/olist-jaccard-check-let.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ulist-jaccard-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ulist-jaccard-check-let.plan
index 2a2ccc4..7ad0078 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ulist-jaccard-check-let.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/ulist-jaccard-check-let.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-let.plan
index 78e761f..e4516f1 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-let.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-let.plan
@@ -9,7 +9,7 @@
                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                   -- STREAM_PROJECT  |PARTITIONED|
                     -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                      -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- ASSIGN  |PARTITIONED|
                             -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-multi-let.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-multi-let.plan
index 57730fe..6900fe8 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-multi-let.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-complex/word-jaccard-check-multi-let.plan
@@ -13,7 +13,7 @@
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- STREAM_PROJECT  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                   -- ASSIGN  |PARTITIONED|
                                     -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance-inline.plan
index 0fab288..c683c43 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance-inline.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance-inline.plan
@@ -15,7 +15,7 @@
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                               -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
                                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                     -- BROADCAST_EXCHANGE  |PARTITIONED|
                                       -- STREAM_SELECT  |PARTITIONED|
                                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance.plan
index f7d3cb4..0aaa618 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-edit-distance.plan
@@ -14,7 +14,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_SELECT  |PARTITIONED|
                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-edit-distance.plan
index 1be3fb1..fc5a042 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-edit-distance.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-edit-distance.plan
@@ -14,7 +14,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$27(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_SELECT  |PARTITIONED|
                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-jaccard.plan
index 7c74f83..7629035 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-fuzzyeq-jaccard.plan
@@ -12,7 +12,7 @@
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                         -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                               -- BROADCAST_EXCHANGE  |PARTITIONED|
                                 -- STREAM_PROJECT  |PARTITIONED|
                                   -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard-inline.plan
index c5534d6..4972d0f 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard-inline.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard-inline.plan
@@ -13,7 +13,7 @@
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                 -- BROADCAST_EXCHANGE  |PARTITIONED|
                                   -- STREAM_PROJECT  |PARTITIONED|
                                     -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard.plan
index fdbf50f..a8c2925 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ngram-jaccard.plan
@@ -12,7 +12,7 @@
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                         -- STABLE_SORT [$$27(ASC)]  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                               -- BROADCAST_EXCHANGE  |PARTITIONED|
                                 -- STREAM_PROJECT  |PARTITIONED|
                                   -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance-inline.plan
index 0fab288..c683c43 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance-inline.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance-inline.plan
@@ -15,7 +15,7 @@
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                               -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
                                 -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                  -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                  -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                     -- BROADCAST_EXCHANGE  |PARTITIONED|
                                       -- STREAM_SELECT  |PARTITIONED|
                                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance.plan
index f7d3cb4..0aaa618 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-edit-distance.plan
@@ -14,7 +14,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_SELECT  |PARTITIONED|
                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-edit-distance.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-edit-distance.plan
index 1be3fb1..fc5a042 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-edit-distance.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-edit-distance.plan
@@ -14,7 +14,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$27(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_SELECT  |PARTITIONED|
                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-jaccard.plan
index 88c4469..a2236b0 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-fuzzyeq-jaccard.plan
@@ -12,7 +12,7 @@
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                         -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                               -- BROADCAST_EXCHANGE  |PARTITIONED|
                                 -- STREAM_PROJECT  |PARTITIONED|
                                   -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard-inline.plan
index 8b6b08b..ebebe4d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard-inline.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard-inline.plan
@@ -13,7 +13,7 @@
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                 -- BROADCAST_EXCHANGE  |PARTITIONED|
                                   -- STREAM_PROJECT  |PARTITIONED|
                                     -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard.plan
index ba9879d..0ee49d0 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/olist-jaccard.plan
@@ -12,7 +12,7 @@
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                         -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                               -- BROADCAST_EXCHANGE  |PARTITIONED|
                                 -- STREAM_PROJECT  |PARTITIONED|
                                   -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-fuzzyeq-jaccard.plan
index 88c4469..a2236b0 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-fuzzyeq-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-fuzzyeq-jaccard.plan
@@ -12,7 +12,7 @@
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                         -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                               -- BROADCAST_EXCHANGE  |PARTITIONED|
                                 -- STREAM_PROJECT  |PARTITIONED|
                                   -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard-inline.plan
index 8b6b08b..ebebe4d 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard-inline.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard-inline.plan
@@ -13,7 +13,7 @@
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                 -- BROADCAST_EXCHANGE  |PARTITIONED|
                                   -- STREAM_PROJECT  |PARTITIONED|
                                     -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard.plan
index ba9879d..0ee49d0 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/ulist-jaccard.plan
@@ -12,7 +12,7 @@
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                         -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                               -- BROADCAST_EXCHANGE  |PARTITIONED|
                                 -- STREAM_PROJECT  |PARTITIONED|
                                   -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-fuzzyeq-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-fuzzyeq-jaccard.plan
index 7c74f83..7629035 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-fuzzyeq-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-fuzzyeq-jaccard.plan
@@ -12,7 +12,7 @@
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                         -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                               -- BROADCAST_EXCHANGE  |PARTITIONED|
                                 -- STREAM_PROJECT  |PARTITIONED|
                                   -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard-inline.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard-inline.plan
index c5534d6..4972d0f 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard-inline.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard-inline.plan
@@ -13,7 +13,7 @@
                         -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                           -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
                             -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                              -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                              -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                 -- BROADCAST_EXCHANGE  |PARTITIONED|
                                   -- STREAM_PROJECT  |PARTITIONED|
                                     -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard.plan
index fdbf50f..a8c2925 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join-noeqjoin/word-jaccard.plan
@@ -12,7 +12,7 @@
                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                         -- STABLE_SORT [$$27(ASC)]  |PARTITIONED|
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                            -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                            -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                               -- BROADCAST_EXCHANGE  |PARTITIONED|
                                 -- STREAM_PROJECT  |PARTITIONED|
                                   -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_01.plan
index a04e378..b274dfc 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_01.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_02.plan
index 1800e75..9fe499b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_02.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_03.plan
index a04e378..b274dfc 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_03.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_04.plan
index abd2c39..dbeabdd 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance-check_04.plan
@@ -22,7 +22,7 @@
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                     -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                        -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                        -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                           -- BROADCAST_EXCHANGE  |PARTITIONED|
                                             -- STREAM_SELECT  |PARTITIONED|
                                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_01.plan
index a04e378..b274dfc 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_01.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_02.plan
index 1800e75..9fe499b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_02.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_03.plan
index a04e378..b274dfc 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_03.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_04.plan
index dffe718..7a789d2 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-edit-distance_04.plan
@@ -22,7 +22,7 @@
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                     -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                        -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                        -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                           -- BROADCAST_EXCHANGE  |PARTITIONED|
                                             -- STREAM_SELECT  |PARTITIONED|
                                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_01.plan
index 65be14f..16f2bfd 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_01.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_02.plan
index bfee1a5..595587e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_02.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_03.plan
index bfee1a5..595587e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-edit-distance_03.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_01.plan
index ab5cf83..b7fe0db 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_02.plan
index 7877b30..7160d6f 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_03.plan
index ab5cf83..b7fe0db 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-fuzzyeq-jaccard_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_01.plan
index 3f7ecb1..2710b67 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_02.plan
index 4b767ab..c3bf90e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_03.plan
index 3f7ecb1..2710b67 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_04.plan
index 77b00ff..5ed5498 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard-check_04.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_PROJECT  |PARTITIONED|
                                           -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_01.plan
index 3f7ecb1..2710b67 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_02.plan
index 4b767ab..c3bf90e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_03.plan
index 3f7ecb1..2710b67 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_04.plan
index 32d7e09..c995dafa 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ngram-jaccard_04.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_PROJECT  |PARTITIONED|
                                           -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_01.plan
index a04e378..b274dfc 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_01.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_02.plan
index 1800e75..9fe499b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_02.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_03.plan
index a04e378..b274dfc 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_03.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_04.plan
index abd2c39..dbeabdd 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance-check_04.plan
@@ -22,7 +22,7 @@
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                     -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                        -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                        -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                           -- BROADCAST_EXCHANGE  |PARTITIONED|
                                             -- STREAM_SELECT  |PARTITIONED|
                                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_01.plan
index a04e378..b274dfc 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_01.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_02.plan
index 1800e75..9fe499b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_02.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_03.plan
index a04e378..b274dfc 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_03.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$26(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_04.plan
index dffe718..7a789d2 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-edit-distance_04.plan
@@ -22,7 +22,7 @@
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                     -- STABLE_SORT [$$31(ASC)]  |PARTITIONED|
                                       -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                        -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                        -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                           -- BROADCAST_EXCHANGE  |PARTITIONED|
                                             -- STREAM_SELECT  |PARTITIONED|
                                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_01.plan
index bfee1a5..595587e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_01.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_02.plan
index 65be14f..16f2bfd 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_02.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_03.plan
index bfee1a5..595587e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-edit-distance_03.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_SELECT  |PARTITIONED|
                                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_01.plan
index 2a4e9de..74bdea2 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_02.plan
index 06826c1..be387f0 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_03.plan
index 2a4e9de..74bdea2 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-fuzzyeq-jaccard_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_01.plan
index 7c16cef..dc2073c 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_02.plan
index 3d0f3f1..8a7e71b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_03.plan
index 7c16cef..dc2073c 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_04.plan
index 156dd43..4934b82 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard-check_04.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_PROJECT  |PARTITIONED|
                                           -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_01.plan
index 7c16cef..dc2073c 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_02.plan
index 3d0f3f1..8a7e71b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_03.plan
index 7c16cef..dc2073c 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_04.plan
index 47f5c91..710ba98 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/olist-jaccard_04.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_PROJECT  |PARTITIONED|
                                           -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_01.plan
index 2a4e9de..74bdea2 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_02.plan
index 06826c1..be387f0 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_03.plan
index 2a4e9de..74bdea2 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-fuzzyeq-jaccard_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$22(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_01.plan
index 7c16cef..dc2073c 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_02.plan
index 3d0f3f1..8a7e71b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_03.plan
index 7c16cef..dc2073c 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_04.plan
index 156dd43..4934b82 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard-check_04.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_PROJECT  |PARTITIONED|
                                           -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_01.plan
index 7c16cef..dc2073c 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_02.plan
index 3d0f3f1..8a7e71b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_03.plan
index 7c16cef..dc2073c 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$23(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_04.plan
index 47f5c91..710ba98 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/ulist-jaccard_04.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$28(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_PROJECT  |PARTITIONED|
                                           -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_01.plan
index ab5cf83..b7fe0db 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_02.plan
index 7877b30..7160d6f 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_03.plan
index ab5cf83..b7fe0db 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-fuzzyeq-jaccard_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$24(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_01.plan
index 3f7ecb1..2710b67 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_02.plan
index 0fced26..e58089b 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_03.plan
index 3f7ecb1..2710b67 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_04.plan
index 77b00ff..5ed5498 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard-check_04.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_PROJECT  |PARTITIONED|
                                           -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_01.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_01.plan
index 3f7ecb1..2710b67 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_01.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_01.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_02.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_02.plan
index 4b767ab..c3bf90e 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_02.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_02.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_03.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_03.plan
index 3f7ecb1..2710b67 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_03.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_03.plan
@@ -18,7 +18,7 @@
                           -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                             -- STABLE_SORT [$$25(ASC)]  |PARTITIONED|
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                   -- BROADCAST_EXCHANGE  |PARTITIONED|
                                     -- STREAM_PROJECT  |PARTITIONED|
                                       -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_04.plan b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_04.plan
index 32d7e09..c995dafa 100644
--- a/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_04.plan
+++ b/asterix-app/src/test/resources/optimizerts/results/inverted-index-join/word-jaccard_04.plan
@@ -20,7 +20,7 @@
                               -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                 -- STABLE_SORT [$$30(ASC)]  |PARTITIONED|
                                   -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
-                                    -- INVERTED_INDEX_SEARCH  |PARTITIONED|
+                                    -- FUZZY_INVERTED_INDEX_SEARCH  |PARTITIONED|
                                       -- BROADCAST_EXCHANGE  |PARTITIONED|
                                         -- STREAM_PROJECT  |PARTITIONED|
                                           -- ASSIGN  |PARTITIONED|
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql
deleted file mode 100644
index d00347d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql
+++ /dev/null
@@ -1,24 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
- * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index that are built on nullable fields. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-drop dataverse test if exists;
-create dataverse test;
-
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string?,
-  authors: string,
-  misc: string
-}
-
-create dataset DBLP(DBLPType) primary key id;
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql
deleted file mode 100644
index 1d5d4fd..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
- * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index that are built on nullable fields. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql
deleted file mode 100644
index a79828c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
- * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index that are built on nullable fields. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-create index fuzzy_ngram_index on DBLP(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql
deleted file mode 100644
index 7e917b5..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
- * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index that are built on nullable fields.
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-delete $o from dataset DBLP where $o.id>50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql
deleted file mode 100644
index c1c6247..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql
+++ /dev/null
@@ -1,13 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
- * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index that are built on nullable fields.
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-for $o in dataset('DBLP')
-where contains($o.title, "Multimedia")
-order by $o.id
-return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql
deleted file mode 100644
index e98b328..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql
+++ /dev/null
@@ -1,23 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index.aql
- * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index.
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-drop dataverse test if exists;
-create dataverse test;
-
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create dataset DBLP(DBLPType) primary key id;
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.2.update.aql
deleted file mode 100644
index 381ce87..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.2.update.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index.aql
- * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index.
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql
deleted file mode 100644
index ede69f6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index.aql
- * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index.
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-create index fuzzy_ngram_index on DBLP(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.4.update.aql
deleted file mode 100644
index 9c58c7e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.4.update.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index.aql
- * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index.
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-delete $o from dataset DBLP where $o.id>50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.5.query.aql
deleted file mode 100644
index ca070fc..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-ngram-secondary-index/scan-delete-inverted-index-fuzzy-ngram-secondary-index.5.query.aql
+++ /dev/null
@@ -1,13 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-ngram-secondary-index.aql
- * Description     : This test is intended to test deletion from secondary fuzzy ngram inverted index.
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-for $o in dataset('DBLP')
-where contains($o.title, "Multimedia")
-order by $o.id
-return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql
deleted file mode 100644
index 45570ac..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql
+++ /dev/null
@@ -1,24 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.aql
- * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index that are built on nullable fields. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-drop dataverse test if exists;
-create dataverse test;
-
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string?,
-  authors: string,
-  misc: string
-}
-
-create dataset DBLP(DBLPType) primary key id;
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql
deleted file mode 100644
index d26c270..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.aql
- * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index that are built on nullable fields. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql
deleted file mode 100644
index 3747bb1..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.aql
- * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index that are built on nullable fields. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-create index fuzzy_keyword_index on DBLP(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql
deleted file mode 100644
index eb15450..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.aql
- * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index that are built on nullable fields. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-delete $o from dataset DBLP where $o.id<50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql
deleted file mode 100644
index c1fb278..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable/scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql
+++ /dev/null
@@ -1,14 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index-nullable.aql
- * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index that are built on nullable fields. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-for $o in dataset('DBLP')
-let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
-where $jacc[0]
-return $o
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.1.ddl.aql
deleted file mode 100644
index 9d04c14..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.1.ddl.aql
+++ /dev/null
@@ -1,24 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index.aql
- * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index.
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-drop dataverse test if exists;
-create dataverse test;
-
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create dataset DBLP(DBLPType) primary key id;
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.2.update.aql
deleted file mode 100644
index a5995f6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.2.update.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index.aql
- * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index.
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.3.ddl.aql
deleted file mode 100644
index 97aef53..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.3.ddl.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index.aql
- * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index.
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-create index fuzzy_keyword_index on DBLP(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.4.update.aql
deleted file mode 100644
index 001e605..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.4.update.aql
+++ /dev/null
@@ -1,10 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index.aql
- * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index.
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-delete $o from dataset DBLP where $o.id<50;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.5.query.aql
deleted file mode 100644
index 7910859..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-delete-inverted-index-fuzzy-word-secondary-index/scan-delete-inverted-index-fuzzy-word-secondary-index.5.query.aql
+++ /dev/null
@@ -1,14 +0,0 @@
-/* 
- * Test case Name  : scan-delete-inverted-index-fuzzy-word-secondary-index.aql
- * Description     : This test is intended to test deletion from secondary fuzzy keyword inverted index.
- * Expected Result : Success
- * Date            : March 31 2013
- */
-
-use dataverse test;
-
-for $o in dataset('DBLP')
-let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
-where $jacc[0]
-return $o
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql
deleted file mode 100644
index 21ff64a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.1.ddl.aql
+++ /dev/null
@@ -1,25 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
- * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index that are built on nullable fields.  
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-drop dataverse test if exists;
-create dataverse test;
-
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string?,
-  authors: string,
-  misc: string
-}
-
-create dataset DBLP(DBLPType) primary key id;
-create dataset DBLP1(DBLPType) primary key id;
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql
deleted file mode 100644
index 9108ad6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.2.update.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
- * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index that are built on nullable fields.  
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql
deleted file mode 100644
index 426654c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.3.ddl.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
- * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index that are built on nullable fields.  
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-create index fuzzy_ngram_index on DBLP(title) type fuzzy ngram(3);
-create index fuzzy_ngram_index1 on DBLP1(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql
deleted file mode 100644
index 2fe30df..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.4.update.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
- * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index that are built on nullable fields.  
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-insert into dataset DBLP1 (
-for $o in dataset('DBLP')
-where contains($o.title, "Multimedia")
-order by $o.id
-return {
-		"id": $o.id,
-		"dblpid": $o.dblpid,
-		"title": $o.title,
-		"authors": $o.authors,
-		"misc": $o.misc
-	}
-);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql
deleted file mode 100644
index f61df2a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable/scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.5.query.aql
+++ /dev/null
@@ -1,13 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable.aql
- * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index that are built on nullable fields.  
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-for $o in dataset('DBLP1')
-where contains($o.title, "Multimedia")
-order by $o.id
-return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql
deleted file mode 100644
index af890c4..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.1.ddl.aql
+++ /dev/null
@@ -1,25 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index.aql
- * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-drop dataverse test if exists;
-create dataverse test;
-
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create dataset DBLP(DBLPType) primary key id;
-create dataset DBLP1(DBLPType) primary key id;
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.2.update.aql
deleted file mode 100644
index 382a4a6..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.2.update.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index.aql
- * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql
deleted file mode 100644
index 8109213..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.3.ddl.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index.aql
- * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-create index fuzzy_ngram_index on DBLP(title) type fuzzy ngram(3);
-create index fuzzy_ngram_index1 on DBLP1(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.4.update.aql
deleted file mode 100644
index b829b15..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.4.update.aql
+++ /dev/null
@@ -1,21 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index.aql
- * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-insert into dataset DBLP1 (
-for $o in dataset('DBLP')
-where contains($o.title, "Multimedia")
-order by $o.id
-return {
-		"id": $o.id,
-		"dblpid": $o.dblpid,
-		"title": $o.title,
-		"authors": $o.authors,
-		"misc": $o.misc
-	}
-);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.5.query.aql
deleted file mode 100644
index 324b351..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-ngram-secondary-index/scan-insert-inverted-index-fuzzy-ngram-secondary-index.5.query.aql
+++ /dev/null
@@ -1,13 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-ngram-secondary-index.aql
- * Description     : This test is intended to test insertion from secondary fuzzy ngram inverted index. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-for $o in dataset('DBLP1')
-where contains($o.title, "Multimedia")
-order by $o.id
-return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql
deleted file mode 100644
index 7dbf7ee..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.1.ddl.aql
+++ /dev/null
@@ -1,25 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.aql
- * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index that are built on nullable fields.  
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-drop dataverse test if exists;
-create dataverse test;
-
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string?,
-  authors: string,
-  misc: string
-}
-
-create dataset DBLP(DBLPType) primary key id;
-create dataset DBLP1(DBLPType) primary key id;
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql
deleted file mode 100644
index 1d8126f..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.2.update.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.aql
- * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index that are built on nullable fields.  
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-nulls.adm"),("format"="adm"));
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql
deleted file mode 100644
index 798622a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.3.ddl.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.aql
- * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index that are built on nullable fields.  
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-create index fuzzy_keyword_index on DBLP(title) type fuzzy keyword;
-create index fuzzy_keyword_index1 on DBLP1(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql
deleted file mode 100644
index 3234c4e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.4.update.aql
+++ /dev/null
@@ -1,20 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.aql
- * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index that are built on nullable fields.  
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-insert into dataset DBLP1 (
-for $o in dataset('DBLP')
-order by $o.id
-return {
-		"id": $o.id,
-		"dblpid": $o.dblpid,
-		"title": $o.title,
-		"authors": $o.authors,
-		"misc": $o.misc
-	}
-);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql
deleted file mode 100644
index 43ad95c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable/scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.5.query.aql
+++ /dev/null
@@ -1,14 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index-nullable.aql
- * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index that are built on nullable fields.  
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-for $o in dataset('DBLP1')
-let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
-where $jacc[0]
-return $o
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.1.ddl.aql
deleted file mode 100644
index 5dd6f1a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.1.ddl.aql
+++ /dev/null
@@ -1,25 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index.aql
- * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-drop dataverse test if exists;
-create dataverse test;
-
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create dataset DBLP(DBLPType) primary key id;
-create dataset DBLP1(DBLPType) primary key id;
-
-
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.2.update.aql
deleted file mode 100644
index 25e9446..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.2.update.aql
+++ /dev/null
@@ -1,12 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index.aql
- * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-load dataset DBLP using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.3.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.3.ddl.aql
deleted file mode 100644
index f43c5cf..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.3.ddl.aql
+++ /dev/null
@@ -1,11 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index.aql
- * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-create index fuzzy_keyword_index on DBLP(title) type fuzzy keyword;
-create index fuzzy_keyword_index1 on DBLP1(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.4.update.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.4.update.aql
deleted file mode 100644
index b8a1af1..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.4.update.aql
+++ /dev/null
@@ -1,20 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index.aql
- * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-insert into dataset DBLP1 (
-for $o in dataset('DBLP')
-order by $o.id
-return {
-		"id": $o.id,
-		"dblpid": $o.dblpid,
-		"title": $o.title,
-		"authors": $o.authors,
-		"misc": $o.misc
-	}
-);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.5.query.aql
deleted file mode 100644
index 0fe611a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/dml/scan-insert-inverted-index-fuzzy-word-secondary-index/scan-insert-inverted-index-fuzzy-word-secondary-index.5.query.aql
+++ /dev/null
@@ -1,14 +0,0 @@
-/* 
- * Test case Name  : scan-insert-inverted-index-fuzzy-word-secondary-index.aql
- * Description     : This test is intended to test insertion from secondary fuzzy keyword inverted index. 
- * Expected Result : Success
- * Date            : March 31 2013
- */
- 
-use dataverse test;
-
-for $o in dataset('DBLP1')
-let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
-where $jacc[0]
-return $o
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/opentype/opentype.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/opentype/opentype.1.ddl.aql
new file mode 100644
index 0000000..17da24b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/opentype/opentype.1.ddl.aql
@@ -0,0 +1,13 @@
+drop dataverse TinySocial if exists;
+create dataverse TinySocial;
+use dataverse TinySocial;
+
+create type TweetMessageType as open {
+        tweetid: string
+}
+
+create dataset TweetMessages(TweetMessageType)
+primary key tweetid
+hints(cardinality=100); 
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/opentype/opentype.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/opentype/opentype.2.update.aql
new file mode 100644
index 0000000..627623a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/opentype/opentype.2.update.aql
@@ -0,0 +1,5 @@
+use dataverse TinySocial;
+
+load dataset TweetMessages
+using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
+(("path"="nc1://data/tinysocial/twm.adm"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/opentype/opentype.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/opentype/opentype.3.query.aql
new file mode 100644
index 0000000..f40e884
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/fuzzyjoin/opentype/opentype.3.query.aql
@@ -0,0 +1,15 @@
+use dataverse TinySocial;
+
+set simfunction "jaccard";
+set simthreshold "0.3";
+
+for $t in dataset TweetMessages
+order by $t.tweetid
+return {                     
+    "tweet": $t,               
+    "similar-tweets": for $t2 in dataset TweetMessages
+    					order by $t2.tweetid
+                        where  $t2.referred-topics ~= $t.referred-topics
+                        and $t2.tweetid != $t.tweetid
+                        return $t2.referred-topics
+};
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.1.ddl.aql
deleted file mode 100644
index d9ca825..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.1.ddl.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) 
-  primary key id on group1;
-
-create index ngram_index on DBLP(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.2.update.aql
deleted file mode 100644
index 830e08a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.2.update.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-use dataverse test;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.3.query.aql
deleted file mode 100644
index 866b045..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-contains/fuzzy-inverted-index-ngram-contains.3.query.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse test;
-
-for $o in dataset('DBLP')
-where contains($o.title, "Multimedia")
-order by $o.id
-return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.1.ddl.aql
deleted file mode 100644
index 7afd29a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.1.ddl.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) 
-  primary key id on group1;
-
-create index ngram_index on DBLP(authors) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.2.update.aql
deleted file mode 100644
index 830e08a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.2.update.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-use dataverse test;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.3.query.aql
deleted file mode 100644
index 45ac926..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance-panic/fuzzy-inverted-index-ngram-edit-distance-panic.3.query.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse test;
-
-for $o in dataset('DBLP')
-let $ed := edit-distance-check($o.authors, "Amihay Motro", 5)
-where $ed[0]
-return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.1.ddl.aql
deleted file mode 100644
index 7afd29a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.1.ddl.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) 
-  primary key id on group1;
-
-create index ngram_index on DBLP(authors) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.2.update.aql
deleted file mode 100644
index 830e08a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.2.update.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-use dataverse test;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.3.query.aql
deleted file mode 100644
index 0f4c003..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-edit-distance/fuzzy-inverted-index-ngram-edit-distance.3.query.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse test;
-
-for $o in dataset('DBLP')
-let $ed := edit-distance-check($o.authors, "Amihay Motro", 1)
-where $ed[0]
-return $o
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.1.ddl.aql
deleted file mode 100644
index d9ca825..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.1.ddl.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) 
-  primary key id on group1;
-
-create index ngram_index on DBLP(title) type fuzzy ngram(3);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.2.update.aql
deleted file mode 100644
index 830e08a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.2.update.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-use dataverse test;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.3.query.aql
deleted file mode 100644
index dc18182..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ngram-jaccard/fuzzy-inverted-index-ngram-jaccard.3.query.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-use dataverse test;
-set import-private-functions 'true';
-
-for $o in dataset('DBLP')
-let $jacc := similarity-jaccard-check(gram-tokens($o.title, 3, false), gram-tokens("Transactions for Cooperative Environments", 3, false), 0.5f)
-where $jacc[0]
-return $o
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.1.ddl.aql
deleted file mode 100644
index 8a57319..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.1.ddl.aql
+++ /dev/null
@@ -1,25 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type AddressType as closed {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  interests: [string],
-  children: [ { name: string, age: int32? } ]
-}
-
-create nodegroup group1 if not exists on nc1;
-
-create dataset Customers(CustomerType) 
-  primary key cid on group1;
-
-create index interests_index on Customers(interests) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.2.update.aql
deleted file mode 100644
index 063b172..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.2.update.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-use dataverse test;
-
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.3.query.aql
deleted file mode 100644
index d4a4f60..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance-panic/fuzzy-inverted-index-olist-edit-distance-panic.3.query.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-use dataverse test;
-
-for $c in dataset('Customers')
-let $ed := edit-distance-check($c.interests, ["computers", "wine", "walking"], 3)
-where $ed[0]
-order by $c.cid
-return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.1.ddl.aql
deleted file mode 100644
index 8a57319..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.1.ddl.aql
+++ /dev/null
@@ -1,25 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type AddressType as closed {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  interests: [string],
-  children: [ { name: string, age: int32? } ]
-}
-
-create nodegroup group1 if not exists on nc1;
-
-create dataset Customers(CustomerType) 
-  primary key cid on group1;
-
-create index interests_index on Customers(interests) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.2.update.aql
deleted file mode 100644
index 063b172..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.2.update.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-use dataverse test;
-
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.3.query.aql
deleted file mode 100644
index 7ebd73e..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-edit-distance/fuzzy-inverted-index-olist-edit-distance.3.query.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-use dataverse test;
-
-for $c in dataset('Customers')
-let $ed := edit-distance-check($c.interests, ["computers", "wine", "walking"], 1)
-where $ed[0]
-order by $c.cid
-return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.1.ddl.aql
deleted file mode 100644
index 8a57319..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.1.ddl.aql
+++ /dev/null
@@ -1,25 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type AddressType as closed {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  interests: [string],
-  children: [ { name: string, age: int32? } ]
-}
-
-create nodegroup group1 if not exists on nc1;
-
-create dataset Customers(CustomerType) 
-  primary key cid on group1;
-
-create index interests_index on Customers(interests) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.2.update.aql
deleted file mode 100644
index 063b172..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.2.update.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-use dataverse test;
-
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k_olist/customer.adm"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.3.query.aql
deleted file mode 100644
index 27a838ba..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-olist-jaccard/fuzzy-inverted-index-olist-jaccard.3.query.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse test;
-
-for $c in dataset('Customers')
-let $jacc := similarity-jaccard-check($c.interests, ["databases", "computers", "wine"], 0.7f)
-where $jacc[0]
-return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.1.ddl.aql
deleted file mode 100644
index 3e2562a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.1.ddl.aql
+++ /dev/null
@@ -1,25 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type AddressType as closed {
-  number: int32, 
-  street: string,
-  city: string
-}
-
-create type CustomerType as closed {
-  cid: int32, 
-  name: string,
-  age: int32?,
-  address: AddressType?,
-  interests: {{string}},
-  children: [ { name: string, age: int32? } ]
-}
-
-create nodegroup group1 if not exists on nc1;
-
-create dataset Customers(CustomerType) 
-  primary key cid on group1;
-
-create index interests_index on Customers(interests) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.2.update.aql
deleted file mode 100644
index 0deeabc..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.2.update.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-use dataverse test;
-
-load dataset Customers 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/semistructured/co1k/customer.adm"),("format"="adm"));
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.3.query.aql
deleted file mode 100644
index 27a838ba..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-ulist-jaccard/fuzzy-inverted-index-ulist-jaccard.3.query.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse test;
-
-for $c in dataset('Customers')
-let $jacc := similarity-jaccard-check($c.interests, ["databases", "computers", "wine"], 0.7f)
-where $jacc[0]
-return $c
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.1.ddl.aql
deleted file mode 100644
index 326b264..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.1.ddl.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) 
-  primary key id on group1;
-
-create index keyword_index on DBLP(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.2.update.aql
deleted file mode 100644
index 830e08a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.2.update.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-use dataverse test;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.3.query.aql
deleted file mode 100644
index d6de89d..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-contains/fuzzy-inverted-index-word-contains.3.query.aql
+++ /dev/null
@@ -1,6 +0,0 @@
-use dataverse test;
-
-for $o in dataset('DBLP')
-where contains($o.title, "Multimedia")
-order by $o.id
-return $o
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.1.ddl.aql
deleted file mode 100644
index 326b264..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.1.ddl.aql
+++ /dev/null
@@ -1,18 +0,0 @@
-drop dataverse test if exists;
-create dataverse test;
-use dataverse test;
-
-create type DBLPType as closed {
-  id: int32, 
-  dblpid: string,
-  title: string,
-  authors: string,
-  misc: string
-}
-
-create nodegroup group1 if not exists on nc1, nc2;
-
-create dataset DBLP(DBLPType) 
-  primary key id on group1;
-
-create index keyword_index on DBLP(title) type fuzzy keyword;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.2.update.aql
deleted file mode 100644
index 830e08a..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.2.update.aql
+++ /dev/null
@@ -1,5 +0,0 @@
-use dataverse test;
-
-load dataset DBLP 
-using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
-(("path"="nc1://data/dblp-small/dblp-small-id.txt"),("format"="delimited-text"),("delimiter"=":")) pre-sorted;
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.3.query.aql
deleted file mode 100644
index 7ce908c..0000000
--- a/asterix-app/src/test/resources/runtimets/queries/index-selection/fuzzy-inverted-index-word-jaccard/fuzzy-inverted-index-word-jaccard.3.query.aql
+++ /dev/null
@@ -1,7 +0,0 @@
-use dataverse test;
-
-for $o in dataset('DBLP')
-let $jacc := similarity-jaccard-check(word-tokens($o.title), word-tokens("Transactions for Cooperative Environments"), 0.5f)
-where $jacc[0]
-return $o
-
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/caret0/caret0.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/caret0/caret0.1.ddl.aql
new file mode 100644
index 0000000..139597f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/caret0/caret0.1.ddl.aql
@@ -0,0 +1,2 @@
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/caret0/caret0.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/caret0/caret0.2.update.aql
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/caret0/caret0.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/caret0/caret0.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/caret0/caret0.3.query.aql
new file mode 100644
index 0000000..825b269
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/caret0/caret0.3.query.aql
@@ -0,0 +1,5 @@
+let $n1 := 2.0
+let $n2 := 4096.0
+let $n3 := 3
+let $n4 := 2
+return { "c1": $n1^$n2, "c2": $n2^$n1, "c3": $n3^$n4 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/query-issue355/query-issue355.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/query-issue355/query-issue355.1.ddl.aql
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/query-issue355/query-issue355.1.ddl.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/query-issue355/query-issue355.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/query-issue355/query-issue355.2.update.aql
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/query-issue355/query-issue355.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/numeric/query-issue355/query-issue355.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/numeric/query-issue355/query-issue355.3.query.aql
new file mode 100644
index 0000000..599bc16
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/numeric/query-issue355/query-issue355.3.query.aql
@@ -0,0 +1,3 @@
+for $a in [{"name":"Bob","age":10,"sex":"Male"},{"name":"John","age":45,"sex":"Female"},{"name":"Raj","age":35,"sex":"Male"}]
+where string-length($a.name) > -10000000000000000000
+return [$a.age, string-equal(lowercase($a.name), "john")]
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue487/query-issue487.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue487/query-issue487.1.ddl.aql
new file mode 100644
index 0000000..4d74b83
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue487/query-issue487.1.ddl.aql
@@ -0,0 +1,18 @@
+/*
+ * Description  : This test case is to verify the fix for issue487
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=487
+ * Expected Res : FAIL
+ * Date         : 30th May 2013
+ */
+ 
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type EmpType as open {
+id : int32,
+name : string
+}
+
+create dataset Employee(EmpType) primary key id;
+ 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue487/query-issue487.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue487/query-issue487.2.update.aql
new file mode 100644
index 0000000..6913b4f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue487/query-issue487.2.update.aql
@@ -0,0 +1,10 @@
+/*
+ * Description  : This test case is to verify the fix for issue487
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=487
+ * Expected Res : FAIL
+ * Date         : 30th May 2013
+ */
+
+use dataverse test;
+ 
+insert into dataset Employee ({ "id":123});
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue487/query-issue487.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue487/query-issue487.3.query.aql
new file mode 100644
index 0000000..d53aba9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue487/query-issue487.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : This test case is to verify the fix for issue487
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=487
+ * Expected Res : FAIL
+ * Date         : 30th May 2013
+ */
+
+use dataverse test;
+
+for $l in dataset Employee
+return $l;
+ 
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint2/string-to-codepoint2.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint2/string-to-codepoint2.1.ddl.aql
new file mode 100644
index 0000000..754ea81
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint2/string-to-codepoint2.1.ddl.aql
@@ -0,0 +1,3 @@
+drop dataverse test if exists;
+create dataverse test;
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint2/string-to-codepoint2.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint2/string-to-codepoint2.2.update.aql
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint2/string-to-codepoint2.2.update.aql
diff --git a/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint2/string-to-codepoint2.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint2/string-to-codepoint2.3.query.aql
new file mode 100644
index 0000000..88f0dfa
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/string/string-to-codepoint2/string-to-codepoint2.3.query.aql
@@ -0,0 +1,6 @@
+use dataverse test;
+
+let $x := "欢迎"
+let $c := string-to-codepoint($x)
+
+return {"result1": $c}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.3.query.aql
index f61ceb5..9f1080d 100644
--- a/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.3.query.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/tpch/q15_top_supplier/q15_top_supplier.3.query.aql
@@ -17,7 +17,7 @@
 
 for $s in dataset('Supplier')
 for $r in revenue()
-	where $s.s_suppkey = $r.supplier_no and $r.total_revenue=$m
+	where $s.s_suppkey = $r.supplier_no and $r.total_revenue<$m+0.000000001 and $r.total_revenue>$m-0.000000001
 return {
 "s_suppkey": $s.s_suppkey, 
 "s_name": $s.s_name, 
diff --git a/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/opentype/opentype.1.adm b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/opentype/opentype.1.adm
new file mode 100644
index 0000000..ae0c4cb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/fuzzyjoin/opentype/opentype.1.adm
@@ -0,0 +1,12 @@
+{ "tweet": { "tweetid": "1", "user": { "screen-name": "NathanGiesen@211", "lang": "en", "friends_count": 39339, "statuses_count": 473, "name": "Nathan Giesen", "followers_count": 49416 }, "sender-location": point("47.44,80.65"), "send-time": datetime("2008-04-26T10:10:00.000Z"), "referred-topics": {{ "t-mobile", "customization" }}, "message-text": " love t-mobile its customization is good:)" }, "similar-tweets": [ {{ "t-mobile", "shortcut-menu" }} ] }
+{ "tweet": { "tweetid": "10", "user": { "screen-name": "ColineGeyer@63", "lang": "en", "friends_count": 121, "statuses_count": 362, "name": "Coline Geyer", "followers_count": 17159 }, "sender-location": point("29.15,76.53"), "send-time": datetime("2008-01-26T10:10:00.000Z"), "referred-topics": {{ "verizon", "voice-clarity" }}, "message-text": " hate verizon its voice-clarity is OMG:(" }, "similar-tweets": [ {{ "verizon", "shortcut-menu" }}, {{ "iphone", "voice-clarity" }}, {{ "verizon", "voicemail-service" }} ] }
+{ "tweet": { "tweetid": "11", "user": { "screen-name": "NilaMilliron_tw", "lang": "en", "friends_count": 445, "statuses_count": 164, "name": "Nila Milliron", "followers_count": 22649 }, "sender-location": point("37.59,68.42"), "send-time": datetime("2008-03-09T10:10:00.000Z"), "referred-topics": {{ "iphone", "platform" }}, "message-text": " can't stand iphone its platform is terrible" }, "similar-tweets": [ {{ "iphone", "voice-clarity" }}, {{ "samsung", "platform" }} ] }
+{ "tweet": { "tweetid": "12", "user": { "screen-name": "OliJackson_512", "lang": "en", "friends_count": 445, "statuses_count": 164, "name": "Oli Jackson", "followers_count": 22649 }, "sender-location": point("24.82,94.63"), "send-time": datetime("2010-02-13T10:10:00.000Z"), "referred-topics": {{ "samsung", "voice-command" }}, "message-text": " like samsung the voice-command is amazing:)" }, "similar-tweets": [ {{ "sprint", "voice-command" }}, {{ "samsung", "platform" }} ] }
+{ "tweet": { "tweetid": "2", "user": { "screen-name": "ColineGeyer@63", "lang": "en", "friends_count": 121, "statuses_count": 362, "name": "Coline Geyer", "followers_count": 17159 }, "sender-location": point("32.84,67.14"), "send-time": datetime("2010-05-13T10:10:00.000Z"), "referred-topics": {{ "verizon", "shortcut-menu" }}, "message-text": " like verizon its shortcut-menu is awesome:)" }, "similar-tweets": [ {{ "verizon", "voice-clarity" }}, {{ "t-mobile", "shortcut-menu" }}, {{ "verizon", "voicemail-service" }} ] }
+{ "tweet": { "tweetid": "3", "user": { "screen-name": "NathanGiesen@211", "lang": "en", "friends_count": 39339, "statuses_count": 473, "name": "Nathan Giesen", "followers_count": 49416 }, "sender-location": point("29.72,75.8"), "send-time": datetime("2006-11-04T10:10:00.000Z"), "referred-topics": {{ "motorola", "speed" }}, "message-text": " like motorola the speed is good:)" }, "similar-tweets": [ {{ "motorola", "speed" }} ] }
+{ "tweet": { "tweetid": "4", "user": { "screen-name": "NathanGiesen@211", "lang": "en", "friends_count": 39339, "statuses_count": 473, "name": "Nathan Giesen", "followers_count": 49416 }, "sender-location": point("39.28,70.48"), "send-time": datetime("2011-12-26T10:10:00.000Z"), "referred-topics": {{ "sprint", "voice-command" }}, "message-text": " like sprint the voice-command is mind-blowing:)" }, "similar-tweets": [ {{ "samsung", "voice-command" }} ] }
+{ "tweet": { "tweetid": "5", "user": { "screen-name": "NathanGiesen@211", "lang": "en", "friends_count": 39339, "statuses_count": 473, "name": "Nathan Giesen", "followers_count": 49416 }, "sender-location": point("40.09,92.69"), "send-time": datetime("2006-08-04T10:10:00.000Z"), "referred-topics": {{ "motorola", "speed" }}, "message-text": " can't stand motorola its speed is terrible:(" }, "similar-tweets": [ {{ "motorola", "speed" }} ] }
+{ "tweet": { "tweetid": "6", "user": { "screen-name": "ColineGeyer@63", "lang": "en", "friends_count": 121, "statuses_count": 362, "name": "Coline Geyer", "followers_count": 17159 }, "sender-location": point("47.51,83.99"), "send-time": datetime("2010-05-07T10:10:00.000Z"), "referred-topics": {{ "iphone", "voice-clarity" }}, "message-text": " like iphone the voice-clarity is good:)" }, "similar-tweets": [ {{ "verizon", "voice-clarity" }}, {{ "iphone", "platform" }} ] }
+{ "tweet": { "tweetid": "7", "user": { "screen-name": "ChangEwing_573", "lang": "en", "friends_count": 182, "statuses_count": 394, "name": "Chang Ewing", "followers_count": 32136 }, "sender-location": point("36.21,72.6"), "send-time": datetime("2011-08-25T10:10:00.000Z"), "referred-topics": {{ "samsung", "platform" }}, "message-text": " like samsung the platform is good" }, "similar-tweets": [ {{ "iphone", "platform" }}, {{ "samsung", "voice-command" }} ] }
+{ "tweet": { "tweetid": "8", "user": { "screen-name": "NathanGiesen@211", "lang": "en", "friends_count": 39339, "statuses_count": 473, "name": "Nathan Giesen", "followers_count": 49416 }, "sender-location": point("46.05,93.34"), "send-time": datetime("2005-10-14T10:10:00.000Z"), "referred-topics": {{ "t-mobile", "shortcut-menu" }}, "message-text": " like t-mobile the shortcut-menu is awesome:)" }, "similar-tweets": [ {{ "t-mobile", "customization" }}, {{ "verizon", "shortcut-menu" }} ] }
+{ "tweet": { "tweetid": "9", "user": { "screen-name": "NathanGiesen@211", "lang": "en", "friends_count": 39339, "statuses_count": 473, "name": "Nathan Giesen", "followers_count": 49416 }, "sender-location": point("36.86,74.62"), "send-time": datetime("2012-07-21T10:10:00.000Z"), "referred-topics": {{ "verizon", "voicemail-service" }}, "message-text": " love verizon its voicemail-service is awesome" }, "similar-tweets": [ {{ "verizon", "voice-clarity" }}, {{ "verizon", "shortcut-menu" }} ] }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/caret0/caret0.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/caret0/caret0.1.adm
new file mode 100644
index 0000000..1edec8a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/caret0/caret0.1.adm
@@ -0,0 +1 @@
+{ "c1": Infinityd, "c2": 1.6777216E7d, "c3": 9 }
diff --git a/asterix-app/src/test/resources/runtimets/results/numeric/query-issue355/query-issue355.1.adm b/asterix-app/src/test/resources/runtimets/results/numeric/query-issue355/query-issue355.1.adm
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/numeric/query-issue355/query-issue355.1.adm
@@ -0,0 +1 @@
+
diff --git a/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue487/query-issue487.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue487/query-issue487.1.adm
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue487/query-issue487.1.adm
diff --git a/asterix-app/src/test/resources/runtimets/results/string/string-to-codepoint2/string-to-codepoint2.1.adm b/asterix-app/src/test/resources/runtimets/results/string/string-to-codepoint2/string-to-codepoint2.1.adm
new file mode 100644
index 0000000..eacdb11
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/string/string-to-codepoint2/string-to-codepoint2.1.adm
@@ -0,0 +1 @@
+{ "result1": [ 27426, 36814 ] }
diff --git a/asterix-app/src/test/resources/runtimets/testsuite.xml b/asterix-app/src/test/resources/runtimets/testsuite.xml
index 7a30f9b..7810a23 100644
--- a/asterix-app/src/test/resources/runtimets/testsuite.xml
+++ b/asterix-app/src/test/resources/runtimets/testsuite.xml
@@ -1040,16 +1040,6 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="dml">
-      <compilation-unit name="scan-insert-inverted-index-fuzzy-ngram-secondary-index">
-        <output-dir compare="Text">scan-insert-inverted-index-fuzzy-ngram-secondary-index</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="dml">
-      <compilation-unit name="scan-insert-inverted-index-fuzzy-word-secondary-index">
-        <output-dir compare="Text">scan-insert-inverted-index-fuzzy-word-secondary-index</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="dml">
       <compilation-unit name="scan-insert-inverted-index-ngram-secondary-index-nullable">
         <output-dir compare="Text">scan-insert-inverted-index-ngram-secondary-index-nullable</output-dir>
       </compilation-unit>
@@ -1060,16 +1050,6 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="dml">
-      <compilation-unit name="scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable">
-        <output-dir compare="Text">scan-insert-inverted-index-fuzzy-ngram-secondary-index-nullable</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="dml">
-      <compilation-unit name="scan-insert-inverted-index-fuzzy-word-secondary-index-nullable">
-        <output-dir compare="Text">scan-insert-inverted-index-fuzzy-word-secondary-index-nullable</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="dml">
       <compilation-unit name="scan-delete-inverted-index-ngram-secondary-index">
         <output-dir compare="Text">scan-delete-inverted-index-ngram-secondary-index</output-dir>
       </compilation-unit>
@@ -1080,16 +1060,6 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="dml">
-      <compilation-unit name="scan-delete-inverted-index-fuzzy-ngram-secondary-index">
-        <output-dir compare="Text">scan-delete-inverted-index-fuzzy-ngram-secondary-index</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="dml">
-      <compilation-unit name="scan-delete-inverted-index-fuzzy-word-secondary-index">
-        <output-dir compare="Text">scan-delete-inverted-index-fuzzy-word-secondary-index</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="dml">
       <compilation-unit name="scan-delete-inverted-index-ngram-secondary-index-nullable">
         <output-dir compare="Text">scan-delete-inverted-index-ngram-secondary-index-nullable</output-dir>
       </compilation-unit>
@@ -1099,16 +1069,6 @@
         <output-dir compare="Text">scan-delete-inverted-index-word-secondary-index-nullable</output-dir>
       </compilation-unit>
     </test-case>
-    <test-case FilePath="dml">
-      <compilation-unit name="scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable">
-        <output-dir compare="Text">scan-delete-inverted-index-fuzzy-ngram-secondary-index-nullable</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="dml">
-      <compilation-unit name="scan-delete-inverted-index-fuzzy-word-secondary-index-nullable">
-        <output-dir compare="Text">scan-delete-inverted-index-fuzzy-word-secondary-index-nullable</output-dir>
-      </compilation-unit>
-    </test-case>
   </test-group>
   <test-group name="employee">
     <test-case FilePath="employee">
@@ -1790,6 +1750,11 @@
       </compilation-unit>
     </test-case>
     -->
+    <test-case FilePath="fuzzyjoin">
+      <compilation-unit name="opentype">
+        <output-dir compare="Text">opentype</output-dir>
+      </compilation-unit>
+    </test-case>
   </test-group>
   <test-group name="index-join">
     <test-case FilePath="index-join">
@@ -1830,56 +1795,6 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="index-selection">
-      <compilation-unit name="fuzzy-inverted-index-ngram-contains">
-        <output-dir compare="Text">fuzzy-inverted-index-ngram-contains</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="index-selection">
-      <compilation-unit name="fuzzy-inverted-index-ngram-edit-distance-panic">
-        <output-dir compare="Text">fuzzy-inverted-index-ngram-edit-distance-panic</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="index-selection">
-      <compilation-unit name="fuzzy-inverted-index-ngram-edit-distance">
-        <output-dir compare="Text">fuzzy-inverted-index-ngram-edit-distance</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="index-selection">
-      <compilation-unit name="fuzzy-inverted-index-ngram-jaccard">
-        <output-dir compare="Text">fuzzy-inverted-index-ngram-jaccard</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="index-selection">
-      <compilation-unit name="fuzzy-inverted-index-olist-edit-distance-panic">
-        <output-dir compare="Text">fuzzy-inverted-index-olist-edit-distance-panic</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="index-selection">
-      <compilation-unit name="fuzzy-inverted-index-olist-edit-distance">
-        <output-dir compare="Text">fuzzy-inverted-index-olist-edit-distance</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="index-selection">
-      <compilation-unit name="fuzzy-inverted-index-olist-jaccard">
-        <output-dir compare="Text">fuzzy-inverted-index-olist-jaccard</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="index-selection">
-      <compilation-unit name="fuzzy-inverted-index-ulist-jaccard">
-        <output-dir compare="Text">fuzzy-inverted-index-ulist-jaccard</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="index-selection">
-      <compilation-unit name="fuzzy-inverted-index-word-contains">
-        <output-dir compare="Text">fuzzy-inverted-index-word-contains</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="index-selection">
-      <compilation-unit name="fuzzy-inverted-index-word-jaccard">
-        <output-dir compare="Text">fuzzy-inverted-index-word-jaccard</output-dir>
-      </compilation-unit>
-    </test-case>
-    <test-case FilePath="index-selection">
       <compilation-unit name="inverted-index-ngram-contains">
         <output-dir compare="Text">inverted-index-ngram-contains</output-dir>
       </compilation-unit>
@@ -2245,6 +2160,11 @@
   </test-group>
   <test-group name="numeric">
     <test-case FilePath="numeric">
+      <compilation-unit name="caret0">
+        <output-dir compare="Text">caret0</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="numeric">
       <compilation-unit name="abs0">
         <output-dir compare="Text">abs0</output-dir>
       </compilation-unit>
@@ -2554,6 +2474,12 @@
         <output-dir compare="Text">unary-minus_null</output-dir>
       </compilation-unit>
     </test-case>
+    <test-case FilePath="numeric">
+      <compilation-unit name="query-issue355">
+        <output-dir compare="Text">query-issue355</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
   </test-group>
   <test-group name="open-closed">
     <!--
@@ -2811,6 +2737,12 @@
         <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
       </compilation-unit>
     </test-case>
+    <test-case FilePath="open-closed">
+      <compilation-unit name="query-issue487">
+        <output-dir compare="Text">query-issue487</output-dir>
+        <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
+      </compilation-unit>
+    </test-case>
   </test-group>
   <test-group name="quantifiers">
     <test-case FilePath="quantifiers">
@@ -3557,6 +3489,11 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="string">
+      <compilation-unit name="string-to-codepoint2">
+        <output-dir compare="Text">string-to-codepoint2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="string">
       <compilation-unit name="strlen02">
         <output-dir compare="Text">strlen02</output-dir>
       </compilation-unit>
diff --git a/asterix-aql/pom.xml b/asterix-aql/pom.xml
index 249299c..f8c652f 100644
--- a/asterix-aql/pom.xml
+++ b/asterix-aql/pom.xml
@@ -30,6 +30,7 @@
 						</goals>
 						<configuration>
 							<isStatic>false</isStatic>
+							<javaUnicodeEscape>true</javaUnicodeEscape>
 						</configuration>
 					</execution>
 					<execution>
diff --git a/asterix-aql/src/main/javacc/AQL.jj b/asterix-aql/src/main/javacc/AQL.jj
index 2a5f534..bd21581 100644
--- a/asterix-aql/src/main/javacc/AQL.jj
+++ b/asterix-aql/src/main/javacc/AQL.jj
@@ -376,20 +376,10 @@
     }
   | "keyword"
     {
-      type = IndexType.WORD_INVIX;
-    }
-  | "fuzzy keyword"
-    {
       type = IndexType.FUZZY_WORD_INVIX;
     }
   | "ngram" <LEFTPAREN> <INTEGER_LITERAL>
     {
-      type = IndexType.NGRAM_INVIX;
-      gramLength = Integer.valueOf(token.image);
-    }
-  <RIGHTPAREN>
-  | "fuzzy ngram" <LEFTPAREN> <INTEGER_LITERAL>
-    {
       type = IndexType.FUZZY_NGRAM_INVIX;
       gramLength = Integer.valueOf(token.image);
     }
@@ -1713,49 +1703,34 @@
 
 Expression DatasetAccessExpression() throws ParseException:
 {
-  CallExpr callExpr;
-  List<Expression> argList = new ArrayList<Expression>();
   String funcName;
-  String dataverse;
   String arg1 = null;
   String arg2 = null;
-  LiteralExpr ds;
   Expression nameArg;
-  int arity = 0;
 }
 {  
   <DATASET>
     {
-      dataverse = MetadataConstants.METADATA_DATAVERSE_NAME;
       funcName = token.image;
     }
   ( ( arg1 = Identifier() ( "." arg2 = Identifier() )? ) 
     {
       String name = arg2 == null ? arg1 : arg1 + "." + arg2;
-      ds = new LiteralExpr();
+      LiteralExpr ds = new LiteralExpr();
       ds.setValue( new StringLiteral(name) );
-      argList.add(ds);
-      arity ++;
+      nameArg = ds;
     }
-  | ( <LEFTPAREN> nameArg = Expression()
+  | ( <LEFTPAREN> nameArg = Expression() <RIGHTPAREN> ) )  
     {
+      String dataverse = MetadataConstants.METADATA_DATAVERSE_NAME;
+      FunctionSignature signature = lookupFunctionSignature(dataverse, funcName, 1);
+      if (signature == null) {
+        signature = new FunctionSignature(dataverse, funcName, 1);
+      }
+      List<Expression> argList = new ArrayList<Expression>();
       argList.add(nameArg);
-      arity ++;
+      return new CallExpr(signature, argList);
     }
-  ( "," nameArg = Expression()
-    {
-      argList.add(nameArg);
-      arity++;
-    }
-  )* <RIGHTPAREN> ) )  
-   {
-     FunctionSignature signature = lookupFunctionSignature(dataverse, funcName, arity);
-     if (signature == null) {
-       signature = new FunctionSignature(dataverse, funcName, arity);
-     }
-     callExpr = new CallExpr(signature,argList);
-     return callExpr;
-   }
 }
 
 Expression ParenthesizedExpression() throws ParseException:
@@ -1835,21 +1810,14 @@
 	extendCurrentScope();
 }
 {
-    "for" varExp = Variable()
-    {
-     	getCurrentScope().addNewVarSymbolToScope(varExp.getVar());
-	}
-	("at" varPos = Variable()
-	  {
-	     getCurrentScope().addNewVarSymbolToScope(varPos.getVar());
-	  } 
-	 )? 
-      "in" ( inExp = Expression() )
+    "for" varExp = Variable() ("at" varPos = Variable())?  "in" ( inExp = Expression() )
     {
       fc.setVarExpr(varExp);
+      getCurrentScope().addNewVarSymbolToScope(varExp.getVar());
       fc.setInExpr(inExp);
       if (varPos != null) {
         fc.setPosExpr(varPos);
+	    getCurrentScope().addNewVarSymbolToScope(varPos.getVar());
       }
       return fc;
     }
diff --git a/asterix-common/pom.xml b/asterix-common/pom.xml
index 1a0e782..db20c29 100644
--- a/asterix-common/pom.xml
+++ b/asterix-common/pom.xml
@@ -99,13 +99,6 @@
 			<version>3.0.1</version>
 		</dependency>
 		<dependency>
-			<groupId>edu.uci.ics.asterix</groupId>
-			<artifactId>asterix-transactions</artifactId>
-			<version>0.0.6-SNAPSHOT</version>
-			<type>jar</type>
-			<scope>compile</scope>
-		</dependency>
-		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-lsm-common</artifactId>
 		</dependency>
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixContextInfo.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixContextInfo.java
new file mode 100644
index 0000000..969aa65
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixContextInfo.java
@@ -0,0 +1,26 @@
+package edu.uci.ics.asterix.common.api;
+
+import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
+
+public class AsterixContextInfo implements IAsterixContextInfo {
+
+    public static AsterixContextInfo INSTANCE;
+
+    private final ICCApplicationContext appCtx;
+
+    public static void initialize(ICCApplicationContext ccAppCtx) {
+        if (INSTANCE == null) {
+            INSTANCE = new AsterixContextInfo(ccAppCtx);
+        }
+    }
+
+    private AsterixContextInfo(ICCApplicationContext ccAppCtx) {
+        this.appCtx = ccAppCtx;
+    }
+
+    @Override
+    public ICCApplicationContext getCCApplicationContext() {
+        return appCtx;
+    }
+
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixAppRuntimeContext.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixAppRuntimeContext.java
new file mode 100644
index 0000000..e053989
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixAppRuntimeContext.java
@@ -0,0 +1,50 @@
+package edu.uci.ics.asterix.common.api;
+
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationScheduler;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMMergePolicy;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMOperationTrackerFactory;
+import edu.uci.ics.hyracks.storage.common.buffercache.IBufferCache;
+import edu.uci.ics.hyracks.storage.common.file.IFileMapProvider;
+import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
+import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactory;
+
+public interface IAsterixAppRuntimeContext {
+
+    public ITransactionSubsystem getTransactionSubsystem();
+
+    public boolean isShuttingdown();
+
+    public ILSMIOOperationScheduler getLSMIOScheduler();
+
+    public int getMetaDataIODeviceId();
+
+    public ILSMMergePolicy getLSMMergePolicy();
+
+    public IBufferCache getBufferCache();
+
+    public IFileMapProvider getFileMapManager();
+
+    public ILocalResourceRepository getLocalResourceRepository();
+
+    public IIndexLifecycleManager getIndexLifecycleManager();
+
+    public ResourceIdFactory getResourceIdFactory();
+
+    public ILSMOperationTrackerFactory getLSMBTreeOperationTrackerFactory();
+
+    public void initialize() throws IOException, ACIDException, AsterixException;
+
+    public void setShuttingdown(boolean b);
+
+    public void deinitialize() throws HyracksDataException;
+
+    public double getBloomFilterFalsePositiveRate();
+
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixContextInfo.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixContextInfo.java
new file mode 100644
index 0000000..1c43f2f
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixContextInfo.java
@@ -0,0 +1,15 @@
+package edu.uci.ics.asterix.common.api;
+
+import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
+
+public interface IAsterixContextInfo {
+
+    /**
+     * Returns an instance of the implementation for ICCApplicationContext.
+     * 
+     * @return ICCApplicationContext implementation instance
+     */
+    public ICCApplicationContext getCCApplicationContext();
+
+ 
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IAsterixAppRuntimeContextProvider.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixRuntimeComponentsProvider.java
similarity index 85%
copy from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IAsterixAppRuntimeContextProvider.java
copy to asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixRuntimeComponentsProvider.java
index d96d5c2..d03b15c 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IAsterixAppRuntimeContextProvider.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixRuntimeComponentsProvider.java
@@ -1,6 +1,5 @@
-package edu.uci.ics.asterix.transaction.management.service.recovery;
+package edu.uci.ics.asterix.common.api;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 import edu.uci.ics.hyracks.api.io.IIOManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
@@ -12,14 +11,12 @@
 import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
 import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactory;
 
-public interface IAsterixAppRuntimeContextProvider {
+public interface IAsterixRuntimeComponentsProvider {
 
     public IBufferCache getBufferCache();
 
     public IFileMapProvider getFileMapManager();
 
-    public TransactionSubsystem getTransactionSubsystem();
-
     public IIndexLifecycleManager getIndexLifecycleManager();
 
     public double getBloomFilterFalsePositiveRate();
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixStorageProperties.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixStorageProperties.java
index d34e4ac..91bdca6 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixStorageProperties.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixStorageProperties.java
@@ -15,7 +15,7 @@
     private static final int STORAGE_MEMORYCOMPONENT_PAGESIZE_DEFAULT = (32 << 10); // 32KB
 
     private static final String STORAGE_MEMORYCOMPONENT_NUMPAGES_KEY = "storage.memorycomponent.numpages";
-    private static final int STORAGE_MEMORYCOMPONENT_NUMPAGES_DEFAULT = 4096; // ... so 128MB components
+    private static final int STORAGE_MEMORYCOMPONENT_NUMPAGES_DEFAULT = 2048; // ... so 64MB components
 
     private static final String STORAGE_MEMORYCOMPONENT_GLOBALBUDGET_KEY = "storage.memorycomponent.globalbudget";
     private static final long STORAGE_MEMORYCOMPONENT_GLOBALBUDGET_DEFAULT = (1 << 30); // 1GB
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ConstantMergePolicy.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ConstantMergePolicy.java
index 74b0aa6..2daed08 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ConstantMergePolicy.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ConstantMergePolicy.java
@@ -15,6 +15,7 @@
 
 package edu.uci.ics.asterix.common.context;
 
+import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
@@ -26,9 +27,9 @@
 public class ConstantMergePolicy implements ILSMMergePolicy {
 
     private final int threshold;
-    private final AsterixAppRuntimeContext ctx;
+    private final IAsterixAppRuntimeContext ctx;
 
-    public ConstantMergePolicy(int threshold, AsterixAppRuntimeContext ctx) {
+    public ConstantMergePolicy(int threshold, IAsterixAppRuntimeContext ctx) {
         this.threshold = threshold;
         this.ctx = ctx;
     }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionSubsystemProvider.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ITransactionSubsystemProvider.java
similarity index 79%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionSubsystemProvider.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ITransactionSubsystemProvider.java
index 857d8ae..a95890b 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionSubsystemProvider.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ITransactionSubsystemProvider.java
@@ -13,12 +13,13 @@
  * limitations under the License.
  */
 
-package edu.uci.ics.asterix.transaction.management.service.transaction;
+package edu.uci.ics.asterix.common.context;
 
 import java.io.Serializable;
 
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
 public interface ITransactionSubsystemProvider extends Serializable{
-    public TransactionSubsystem getTransactionSubsystem(IHyracksTaskContext ctx);
+    public ITransactionSubsystem getTransactionSubsystem(IHyracksTaskContext ctx);
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java
index 85e5375..33f20f7 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java
@@ -15,8 +15,8 @@
 
 package edu.uci.ics.asterix.common.context;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
 /**
@@ -26,8 +26,8 @@
  */
 public class TransactionSubsystemProvider implements ITransactionSubsystemProvider {
     @Override
-    public TransactionSubsystem getTransactionSubsystem(IHyracksTaskContext ctx) {
-        AsterixAppRuntimeContext runtimeCtx = (AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext()
+    public ITransactionSubsystem getTransactionSubsystem(IHyracksTaskContext ctx) {
+        IAsterixAppRuntimeContext runtimeCtx = (IAsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext()
                 .getApplicationObject();
         return runtimeCtx.getTransactionSubsystem();
     }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/dataflow/IAsterixApplicationContextInfo.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/dataflow/IAsterixApplicationContextInfo.java
index 401af28..a057f91 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/dataflow/IAsterixApplicationContextInfo.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/dataflow/IAsterixApplicationContextInfo.java
@@ -19,10 +19,16 @@
 import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
 
 /**
- * Provides methods for obtaining the IIndexRegistryProvider, IStorageManager and
+ * Provides methods for obtaining the IIndexLifecycleManagerProvider, IStorageManagerInterface and
  * ICCApplicationContext implementation.
  */
 public interface IAsterixApplicationContextInfo {
+
+    /**
+     * Returns an instance of the implementation for IIndexLifecycleManagerProvider.
+     * 
+     * @return IIndexLifecycleManagerProvider implementation instance
+     */
     public IIndexLifecycleManagerProvider getIndexLifecycleManagerProvider();
 
     /**
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/exception/ACIDException.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/exceptions/ACIDException.java
similarity index 74%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/exception/ACIDException.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/exceptions/ACIDException.java
index 2bc9935..eb00d10 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/exception/ACIDException.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/exceptions/ACIDException.java
@@ -12,14 +12,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.exception;
+package edu.uci.ics.asterix.common.exceptions;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
 
 /**
  * Represents an exception related to an unexpected behavior that prevents the
  * system from supporting ACID guarantees. The exception contains the
- * TransactionContext but it may not always be set. For example, an
+ * ITransactionContext but it may not always be set. For example, an
  * ACIDException encountered during crash recovery shall not have a transaction
  * context as recovery does not happen as part of a transaction.
  */
@@ -29,22 +29,22 @@
 	 * 
 	 */
     private static final long serialVersionUID = -8855848112541877323L;
-    private TransactionContext txnContext;
+    private ITransactionContext txnContext;
 
-    public TransactionContext getTxnContext() {
+    public ITransactionContext getTxnContext() {
         return txnContext;
     }
 
-    public void setTxnContext(TransactionContext txnContext) {
+    public void setTxnContext(ITransactionContext txnContext) {
         this.txnContext = txnContext;
     }
 
-    public ACIDException(TransactionContext txnContext, String message) {
+    public ACIDException(ITransactionContext txnContext, String message) {
         super(message);
         this.txnContext = txnContext;
     }
 
-    public ACIDException(TransactionContext txnContext, String message, Throwable cause) {
+    public ACIDException(ITransactionContext txnContext, String message, Throwable cause) {
         super(message, cause);
         this.txnContext = txnContext;
     }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallback.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/AbstractOperationCallback.java
similarity index 74%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallback.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/AbstractOperationCallback.java
index fdbb707..dc7b543 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallback.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/AbstractOperationCallback.java
@@ -13,41 +13,34 @@
  * limitations under the License.
  */
 
-package edu.uci.ics.asterix.transaction.management.opcallbacks;
+package edu.uci.ics.asterix.common.transactions;
 
-import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.storage.am.bloomfilter.impls.MurmurHash128Bit;
 
 public abstract class AbstractOperationCallback {
-    
+
     private final static long SEED = 0L;
-    
+
     protected final DatasetId datasetId;
     protected final int[] primaryKeyFields;
+    protected final ITransactionContext txnCtx;
     protected final ILockManager lockManager;
-    protected final TransactionContext txnCtx;
     protected int transactorLocalNumActiveOperations = 0;
     protected final long[] longHashes;
 
-    public AbstractOperationCallback(int datasetId, int[] primaryKeyFields,
-            TransactionContext txnCtx, ILockManager lockManager) {
+    public AbstractOperationCallback(int datasetId, int[] primaryKeyFields, ITransactionContext txnCtx,
+            ILockManager lockManager) {
         this.datasetId = new DatasetId(datasetId);
         this.primaryKeyFields = primaryKeyFields;
         this.txnCtx = txnCtx;
         this.lockManager = lockManager;
-        this.longHashes= new long[2];
+        this.longHashes = new long[2];
     }
 
     public int computePrimaryKeyHashValue(ITupleReference tuple, int[] primaryKeyFields) {
         MurmurHash128Bit.hash3_x64_128(tuple, primaryKeyFields, SEED, longHashes);
-        return Math.abs((int) longHashes[0]); 
-    }
-
-    public TransactionContext getTransactionContext() {
-        return txnCtx;
+        return Math.abs((int) longHashes[0]);
     }
 
     public int getLocalNumActiveOperations() {
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallbackFactory.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/AbstractOperationCallbackFactory.java
similarity index 85%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallbackFactory.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/AbstractOperationCallbackFactory.java
index 386dce5..5c0d5f1 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/AbstractOperationCallbackFactory.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/AbstractOperationCallbackFactory.java
@@ -13,12 +13,12 @@
  * limitations under the License.
  */
 
-package edu.uci.ics.asterix.transaction.management.opcallbacks;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.io.Serializable;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.common.context.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.common.transactions.JobId;
 
 public abstract class AbstractOperationCallbackFactory implements Serializable {
     private static final long serialVersionUID = 1L;
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/Buffer.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/Buffer.java
new file mode 100644
index 0000000..d70288f
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/Buffer.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.common.transactions;
+
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+
+/**
+ * Represents a wrapper over @see ByteBuffer supporting some custom APIs for
+ * transaction support. This class is not "thread-safe". For performance
+ * concerns, it is required for multiple writers to be able to write to the
+ * buffer concurrently and that a writer is never blocked by another writer. The
+ * users of this class must ensure that two concurrent writers get to write in
+ * exclusive areas in the buffer. A reader and writer may or may not conflict
+ * with each other. For example, reading of logs during roll back of a
+ * transaction t1 does not conflict with writing of logs by another transaction
+ * t2 as they are concerned with exclusive areas of the buffer. On the contrary,
+ * a flushing the buffer to disk conflicts with a reader reading the buffer.
+ * Appropriate locks are taken on the Buffer in the application logic and not
+ * directly imposed by synchronized methods.
+ */
+
+public class Buffer implements IBuffer {
+
+    ByteBuffer buffer;
+
+    public Buffer(ByteBuffer buffer) {
+        this.buffer = buffer;
+    }
+
+    protected Buffer() {
+    }
+
+    public void setBuffer(ByteBuffer buffer) {
+        this.buffer = buffer;
+    }
+
+    @Override
+    public byte getByte(int offset) {
+        return buffer.get(offset);
+    }
+
+    @Override
+    public byte getByte() {
+        return buffer.get();
+    }
+
+    @Override
+    public void getBytes(byte[] bytes, int offset, int size) {
+        System.arraycopy(buffer.array(), offset, bytes, 0, size);
+    }
+
+    @Override
+    public int getSize() {
+        return buffer.capacity();
+    }
+
+    @Override
+    public int readInt() {
+        return buffer.getInt();
+    }
+
+    @Override
+    public int readInt(int offset) {
+        return buffer.getInt(offset);
+    }
+
+    @Override
+    public long readLong(int offset) {
+        return buffer.getLong(offset);
+    }
+
+    @Override
+    public void put(byte b) {
+        buffer.put(b);
+    }
+
+    @Override
+    public void put(int offset, byte b) {
+        buffer.put(offset, b);
+    }
+
+    @Override
+    public void put(byte[] bytes, int start, int length) {
+        buffer.put(bytes, start, length);
+
+    }
+
+    @Override
+    public void put(byte[] bytes) {
+        buffer.put(bytes);
+    }
+
+    @Override
+    public void writeInt(int value) {
+        buffer.putInt(value);
+    }
+
+    @Override
+    public void writeInt(int offset, int value) {
+        buffer.putInt(offset, value);
+
+    }
+
+    @Override
+    public void writeLong(long value) {
+        buffer.putLong(value);
+    }
+
+    @Override
+    public void writeLong(int offset, long value) {
+        buffer.putLong(offset, value);
+
+    }
+
+    @Override
+    public byte[] getArray() {
+        return buffer.array();
+    }
+
+    @Override
+    public void erase() {
+        Arrays.fill(buffer.array(), (byte) 0);
+    }
+
+    @Override
+    public ByteBuffer getByteBuffer() {
+        return buffer;
+    }
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetId.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/DatasetId.java
similarity index 80%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetId.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/DatasetId.java
index 9aded2a..9f964f1 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetId.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/DatasetId.java
@@ -1,8 +1,12 @@
-package edu.uci.ics.asterix.transaction.management.service.transaction;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.io.Serializable;
 
 public class DatasetId implements Serializable {
+    /**
+     * 
+     */
+    private static final long serialVersionUID = 1L;
     int id;
 
     public DatasetId(int id) {
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/FileBasedBuffer.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/FileBasedBuffer.java
similarity index 98%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/FileBasedBuffer.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/FileBasedBuffer.java
index e88d74e..0e80817 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/FileBasedBuffer.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/FileBasedBuffer.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.logging;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.io.File;
 import java.io.IOException;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/FileUtil.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/FileUtil.java
similarity index 95%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/FileUtil.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/FileUtil.java
index 46e03f1..2ba0a08 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/FileUtil.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/FileUtil.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.logging;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.io.File;
 import java.io.IOException;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IAsterixAppRuntimeContextProvider.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IAsterixAppRuntimeContextProvider.java
similarity index 88%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IAsterixAppRuntimeContextProvider.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IAsterixAppRuntimeContextProvider.java
index d96d5c2..f762b16 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IAsterixAppRuntimeContextProvider.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IAsterixAppRuntimeContextProvider.java
@@ -1,6 +1,5 @@
-package edu.uci.ics.asterix.transaction.management.service.recovery;
+package edu.uci.ics.asterix.common.transactions;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 import edu.uci.ics.hyracks.api.io.IIOManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIOOperationCallbackProvider;
@@ -18,7 +17,7 @@
 
     public IFileMapProvider getFileMapManager();
 
-    public TransactionSubsystem getTransactionSubsystem();
+    public ITransactionSubsystem getTransactionSubsystem();
 
     public IIndexLifecycleManager getIndexLifecycleManager();
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IBuffer.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IBuffer.java
similarity index 95%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IBuffer.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IBuffer.java
index 8f39cbf..abb8ab8 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IBuffer.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IBuffer.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.logging;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.nio.ByteBuffer;
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/ICloseable.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ICloseable.java
similarity index 81%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/ICloseable.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ICloseable.java
index f62fd66..4315a03 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/ICloseable.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ICloseable.java
@@ -13,10 +13,9 @@
  * limitations under the License.
  */
 
-package edu.uci.ics.asterix.transaction.management.resource;
+package edu.uci.ics.asterix.common.transactions;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 
 /**
  * Represents a closeable resource that implements a close(@see
@@ -35,6 +34,6 @@
      * @param context
      * @throws ACIDException
      */
-    public void close(TransactionContext context) throws ACIDException;
+    public void close(ITransactionContext context) throws ACIDException;
 
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IFileBasedBuffer.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IFileBasedBuffer.java
similarity index 95%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IFileBasedBuffer.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IFileBasedBuffer.java
index a4ea3cb..5093ca0 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IFileBasedBuffer.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IFileBasedBuffer.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.logging;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.io.IOException;
 
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockHashTable.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockHashTable.java
new file mode 100644
index 0000000..8c0e373
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockHashTable.java
@@ -0,0 +1,21 @@
+package edu.uci.ics.asterix.common.transactions;
+
+/**
+ * @author pouria Interface for a hashTable, used in the internal data
+ *         structures of lockManager
+ * @param <K>
+ *            Type of the objects, used as keys
+ * @param <V>
+ *            Type of the objects, used as values
+ */
+public interface ILockHashTable<K, V> {
+
+    public void put(K key, V value);
+
+    public V get(K key);
+
+    public V remove(K key);
+
+    public int getKeysetSize();
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/ILockManager.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockManager.java
similarity index 78%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/ILockManager.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockManager.java
index 1341cc1..6e42e2d 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/ILockManager.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockManager.java
@@ -12,18 +12,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.locking;
+package edu.uci.ics.asterix.common.transactions;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 
 /**
  * Interface for the lockManager
  * 
- * @author pouria 
+ * @author pouria
  * @author kisskys
- * 
  */
 public interface ILockManager {
 
@@ -40,13 +37,15 @@
      * has a "weaker" lock, then the request would be interpreted as a convert
      * request
      * Waiting transaction would eventually garb the lock, or get timed-out
+     * 
      * @param datasetId
      * @param entityHashValue
      * @param lockMode
      * @param txnContext
      * @throws ACIDException
      */
-    public void lock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext) throws ACIDException;
+    public void lock(DatasetId datasetId, int entityHashValue, byte lockMode, ITransactionContext txnContext)
+            throws ACIDException;
 
     /**
      * The method releases "All" the locks taken/waiting-on by a specific
@@ -57,41 +56,42 @@
      * @param txnContext
      * @throws ACIDException
      */
-    public void releaseLocks(TransactionContext txnContext) throws ACIDException;
+    public void releaseLocks(ITransactionContext txnContext) throws ACIDException;
 
     /**
-     * 
      * @param datasetId
      * @param entityHashValue
      * @param txnContext
-     * @throws ACIDException TODO
+     * @throws ACIDException
+     *             TODO
      */
-    public void unlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext) throws ACIDException;
+    public void unlock(DatasetId datasetId, int entityHashValue, ITransactionContext txnContext) throws ACIDException;
 
     /**
-     * 
      * @param datasetId
      * @param entityHashValue
      * @param txnContext
-     * @throws ACIDException TODO
+     * @throws ACIDException
+     *             TODO
      */
-    public void unlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext, boolean commitFlag) throws ACIDException;
-    
+    public void unlock(DatasetId datasetId, int entityHashValue, ITransactionContext txnContext, boolean commitFlag)
+            throws ACIDException;
+
     /**
      * Call to lock and unlock a specific resource in a specific lock mode
+     * 
      * @param datasetId
      * @param entityHashValue
-     * @param lockMode TODO
+     * @param lockMode
+     *            TODO
      * @param context
-     * 
      * @return
      * @throws ACIDException
      */
-    public void instantLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext context) throws ACIDException;
-
+    public void instantLock(DatasetId datasetId, int entityHashValue, byte lockMode, ITransactionContext context)
+            throws ACIDException;
 
     /**
-     * 
      * @param datasetId
      * @param entityHashValue
      * @param lockMode
@@ -99,10 +99,10 @@
      * @return
      * @throws ACIDException
      */
-    public boolean tryLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext context) throws ACIDException;
-    
+    public boolean tryLock(DatasetId datasetId, int entityHashValue, byte lockMode, ITransactionContext context)
+            throws ACIDException;
+
     /**
-     * 
      * @param datasetId
      * @param entityHashValue
      * @param lockMode
@@ -110,8 +110,9 @@
      * @return
      * @throws ACIDException
      */
-    boolean instantTryLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
+    boolean instantTryLock(DatasetId datasetId, int entityHashValue, byte lockMode, ITransactionContext txnContext)
             throws ACIDException;
+
     /**
      * Prints out the contents of the transactions' table in a readable fashion
      * 
@@ -120,6 +121,4 @@
      */
     public String prettyPrint() throws ACIDException;
 
-
-
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockMatrix.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockMatrix.java
new file mode 100644
index 0000000..e819b9a
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockMatrix.java
@@ -0,0 +1,30 @@
+package edu.uci.ics.asterix.common.transactions;
+
+/**
+ * @author pouria
+ *         Shows: - The conflict matrix for the locking protocol (whether two
+ *         lock modes conflict with each other or not on a single resource) -
+ *         Whether request to convert a lock mode to a new one is a conversion
+ *         (i.e. the new lock mode is stringer than the current one) or not
+ *         Each lock mode is shown/interpreted as an integer
+ */
+
+public interface ILockMatrix {
+
+    /**
+     * @param mask
+     *            (current/expected) lock mask on the resource
+     * @param reqLockMode
+     *            index of the requested lockMode
+     * @return true if the lock request conflicts with the mask
+     */
+    public boolean conflicts(int mask, int reqLockMode);
+
+    /**
+     * @param currentLockMode
+     * @param reqLockMode
+     * @return true if the request is a conversion
+     */
+    public boolean isConversion(int currentLockMode, int reqLockMode);
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogCursor.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogCursor.java
similarity index 83%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogCursor.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogCursor.java
index 991de1b..ab2dcc2 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogCursor.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogCursor.java
@@ -12,11 +12,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.logging;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 
 /**
  * Provides a cursor over the logs created to date.
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogFilter.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogFilter.java
similarity index 88%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogFilter.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogFilter.java
index 4c7eda2..9986add6 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogFilter.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogFilter.java
@@ -12,7 +12,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.logging;
+package edu.uci.ics.asterix.common.transactions;
+
+import edu.uci.ics.asterix.common.transactions.IBuffer;
 
 /**
  * Represents a predicate or a filter that needs to be applied when selectively
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogManager.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogManager.java
similarity index 80%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogManager.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogManager.java
index 26229a7..9470d17 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogManager.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogManager.java
@@ -12,14 +12,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.logging;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger.ReusableLogContentObject;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 
 public interface ILogManager {
 
@@ -36,7 +33,7 @@
      * @param logicalLogLocator
      * @throws ACIDException
      */
-    void log(byte logType, TransactionContext context, int datasetId, int PKHashValue, long resourceId,
+    void log(byte logType, ITransactionContext context, int datasetId, int PKHashValue, long resourceId,
             byte resourceMgrId, int logContentSize, ReusableLogContentObject reusableLogContentObject, ILogger logger,
             LogicalLogLocator logicalLogLocator) throws ACIDException;
 
@@ -53,7 +50,10 @@
             ACIDException;
 
     /**
-     * @param logicalLogLocator TODO
+     * @param logicalLogLocator
+     *            TODO
+     * @param logicalLogLocator
+     *            TODO
      * @param PhysicalLogLocator
      *            specifies the location of the log record to be read
      * @throws ACIDException
@@ -83,6 +83,6 @@
      * 
      * @return TransactionSubsystem
      */
-    public TransactionSubsystem getTransactionSubsystem();
+    public ITransactionSubsystem getTransactionSubsystem();
 
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogRecordHelper.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogRecordHelper.java
similarity index 85%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogRecordHelper.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogRecordHelper.java
index 0e24f9d..13fc722 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogRecordHelper.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogRecordHelper.java
@@ -13,9 +13,7 @@
  * limitations under the License.
  */
 
-package edu.uci.ics.asterix.transaction.management.service.logging;
-
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+package edu.uci.ics.asterix.common.transactions;
 
 /**
  * Helper class for writing/reading of log header and checksum as well as
@@ -36,9 +34,9 @@
     public PhysicalLogLocator getPrevLSN(LogicalLogLocator logicalLogLocator);
 
     public boolean getPrevLSN(PhysicalLogLocator physicalLogLocator, LogicalLogLocator logicalLogLocator);
-    
+
     public long getResourceId(LogicalLogLocator logicalLogLocator);
-    
+
     public byte getResourceMgrId(LogicalLogLocator logicalLogLocater);
 
     public int getLogContentSize(LogicalLogLocator logicalLogLocater);
@@ -51,8 +49,9 @@
 
     public String getLogRecordForDisplay(LogicalLogLocator logicalLogLocator);
 
-    public void writeLogHeader(LogicalLogLocator logicalLogLocator, byte logType, TransactionContext context, int datasetId,
-            int PKHashValue, long prevLogicalLogLocator, long resourceId, byte resourceMgrId, int logRecordSize);
+    public void writeLogHeader(LogicalLogLocator logicalLogLocator, byte logType, ITransactionContext context,
+            int datasetId, int PKHashValue, long prevLogicalLogLocator, long resourceId, byte resourceMgrId,
+            int logRecordSize);
 
     public boolean validateLogRecord(LogicalLogLocator logicalLogLocator);
 
@@ -61,7 +60,7 @@
     public int getLogHeaderSize(byte logType);
 
     public int getLogChecksumSize();
-    
+
     public int getCommitLogSize();
 
-}
+}
\ No newline at end of file
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogger.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogger.java
new file mode 100644
index 0000000..78dd50b
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILogger.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.common.transactions;
+
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+
+/**
+ * An interface providing call back APIs that are invoked {@link ILogManager} for providing the content for the log record and doing any pre/post
+ * processing.
+ */
+public interface ILogger {
+
+    public void preLog(ITransactionContext context, ReusableLogContentObject reusableLogContentObject)
+            throws ACIDException;
+
+    public void log(ITransactionContext context, final LogicalLogLocator logicalLogLocator, int logContentSize,
+            ReusableLogContentObject reusableLogContentObject) throws ACIDException;
+
+    public void postLog(ITransactionContext context, ReusableLogContentObject reusableLogContentObject)
+            throws ACIDException;
+
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILoggerRepository.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILoggerRepository.java
new file mode 100644
index 0000000..036d66c
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILoggerRepository.java
@@ -0,0 +1,6 @@
+package edu.uci.ics.asterix.common.transactions;
+
+public interface ILoggerRepository {
+
+    public  ILogger getIndexLogger(long resourceId, byte resourceType);
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IRecoveryManager.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IRecoveryManager.java
similarity index 87%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IRecoveryManager.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IRecoveryManager.java
index 38802a2..dd9e734 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/IRecoveryManager.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IRecoveryManager.java
@@ -12,12 +12,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.recovery;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
 
 /**
  * Provides API for failure recovery. Failure could be at application level and
@@ -67,7 +67,7 @@
      *            the transaction context associated with the transaction
      * @throws ACIDException
      */
-    public void rollbackTransaction(TransactionContext txnContext) throws ACIDException;
+    public void rollbackTransaction(ITransactionContext txnContext) throws ACIDException;
 
     public void checkpoint(boolean isSharpCheckpoint) throws ACIDException;
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/IResourceManager.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IResourceManager.java
similarity index 88%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/IResourceManager.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IResourceManager.java
index f7715e8..6874c7e 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/IResourceManager.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IResourceManager.java
@@ -12,11 +12,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.transaction;
+package edu.uci.ics.asterix.common.transactions;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogRecordHelper;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.ILogRecordHelper;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 
 /**
  * Provides APIs for undo or redo of an operation on a resource.
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionContext.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionContext.java
new file mode 100644
index 0000000..a06cc75
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionContext.java
@@ -0,0 +1,55 @@
+package edu.uci.ics.asterix.common.transactions;
+
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext.TransactionType;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager.TransactionState;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
+
+public interface ITransactionContext {
+
+    public void registerIndexAndCallback(ILSMIndex index, AbstractOperationCallback callback);
+
+    public void updateLastLSNForIndexes(long lastLSN);
+
+    public void decreaseActiveTransactionCountOnIndexes() throws HyracksDataException;
+
+    public LogicalLogLocator getFirstLogLocator();
+
+    public LogicalLogLocator getLastLogLocator();
+
+    public void addCloseableResource(ICloseable resource);
+
+    public JobId getJobId();
+
+    public void setStartWaitTime(long time);
+
+    public long getStartWaitTime();
+
+    public void setStatus(int status);
+
+    public int getStatus();
+
+    public void setTxnState(TransactionState txnState);
+
+    public TransactionState getTxnState();
+
+    public void releaseResources() throws ACIDException;
+
+    public void setLastLSN(long lsn);
+
+    public TransactionType getTransactionType();
+
+    public void setTransactionType(TransactionType transactionType);
+
+    public static final long INVALID_TIME = -1l; // used for showing a
+    // transaction is not waiting.
+    public static final int ACTIVE_STATUS = 0;
+    public static final int TIMED_OUT_STATUS = 1;
+
+    public enum TransactionType {
+        READ,
+        READ_WRITE
+    }
+
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionManager.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionManager.java
similarity index 70%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionManager.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionManager.java
index 3f55ac9..2bfc00d 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/ITransactionManager.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionManager.java
@@ -12,9 +12,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.transaction;
+package edu.uci.ics.asterix.common.transactions;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 
 /**
  * Provides APIs for managing life cycle of a transaction, that is beginning a
@@ -43,10 +43,10 @@
      * @param jobId
      *            a unique value for the transaction id.
      * @return the transaction context associated with the initiated transaction
-     * @see TransactionContext
+     * @see ITransactionContext
      * @throws ACIDException
      */
-    public TransactionContext beginTransaction(JobId jobId) throws ACIDException;
+    public ITransactionContext beginTransaction(JobId jobId) throws ACIDException;
 
     /**
      * Returns the transaction context of an active transaction given the
@@ -57,33 +57,39 @@
      * @return
      * @throws ACIDException
      */
-    public TransactionContext getTransactionContext(JobId jobId) throws ACIDException;
+    public ITransactionContext getTransactionContext(JobId jobId) throws ACIDException;
 
     /**
      * Commits a transaction.
      * 
      * @param txnContext
      *            the transaction context associated with the transaction
-     * @param datasetId TODO
-     * @param PKHashVal TODO
+     * @param datasetId
+     *            TODO
+     * @param PKHashVal
+     *            TODO
      * @throws ACIDException
-     * @see transactionContextimport edu.uci.ics.hyracks.api.job.JobId;
+     * @see ITransactionContextimport edu.uci.ics.hyracks.api.job.JobId;
      * @see ACIDException
      */
-    public void commitTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal) throws ACIDException;
+    public void commitTransaction(ITransactionContext txnContext, DatasetId datasetId, int PKHashVal)
+            throws ACIDException;
 
     /**
      * Aborts a transaction.
      * 
      * @param txnContext
      *            the transaction context associated with the transaction
-     * @param datasetId TODO
-     * @param PKHashVal TODO
+     * @param datasetId
+     *            TODO
+     * @param PKHashVal
+     *            TODO
      * @throws ACIDException
-     * @see transactionContext
+     * @see ITransactionContext
      * @see ACIDException
      */
-    public void abortTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal) throws ACIDException;
+    public void abortTransaction(ITransactionContext txnContext, DatasetId datasetId, int PKHashVal)
+            throws ACIDException;
 
     /**
      * Indicates end of all activity for a transaction. In other words, all
@@ -92,23 +98,27 @@
      * 
      * @param txnContext
      *            the transaction context associated with the transaction
-     * @param datasetId TODO
-     * @param PKHashVal TODO
+     * @param datasetId
+     *            TODO
+     * @param PKHashVal
+     *            TODO
      * @param success
      *            indicates the success or failure. The transaction is committed
      *            or aborted accordingly.
      * @throws ACIDException
      */
-    public void completedTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal, boolean success) throws ACIDException;
+    public void completedTransaction(ITransactionContext txnContext, DatasetId datasetId, int PKHashVal, boolean success)
+            throws ACIDException;
 
     /**
      * Returns the Transaction Provider for the transaction eco-system. A
      * transaction eco-system consists of a Log Manager, a Recovery Manager, a
      * Transaction Manager and a Lock Manager.
      * 
-     * @see TransactionSubsystem
+     * @see ITransactionSubsystem
      * @return TransactionProvider
      */
-    public TransactionSubsystem getTransactionProvider();
+    public ITransactionSubsystem getTransactionProvider();
+
 
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionSubsystem.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionSubsystem.java
new file mode 100644
index 0000000..e5462da
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionSubsystem.java
@@ -0,0 +1,21 @@
+package edu.uci.ics.asterix.common.transactions;
+
+
+public interface ITransactionSubsystem {
+
+    public ILogManager getLogManager();
+
+    public ILockManager getLockManager();
+
+    public ITransactionManager getTransactionManager();
+
+    public IRecoveryManager getRecoveryManager();
+
+    public TransactionalResourceManagerRepository getTransactionalResourceRepository();
+
+    public ILoggerRepository getTreeLoggerRepository();
+
+    public IAsterixAppRuntimeContextProvider getAsterixAppRuntimeContextProvider();
+
+    public String getId();
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobId.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/JobId.java
similarity index 90%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobId.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/JobId.java
index d306670..1246f22 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobId.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/JobId.java
@@ -1,4 +1,4 @@
-package edu.uci.ics.asterix.transaction.management.service.transaction;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.io.Serializable;
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManagerProperties.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/LogManagerProperties.java
similarity index 98%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManagerProperties.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/LogManagerProperties.java
index 581ce4c..4dc943c 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManagerProperties.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/LogManagerProperties.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.logging;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.io.Serializable;
 import java.util.Properties;
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/LogUtil.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/LogUtil.java
new file mode 100644
index 0000000..acf3346
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/LogUtil.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.common.transactions;
+
+import java.io.File;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+
+/**
+ * A utility class providing helper methods for the {@link ILogManager}
+ */
+public class LogUtil {
+
+    private static final Logger LOGGER = Logger.getLogger(LogUtil.class.getName());
+
+    // read the log directory and initialize log anchor to point to the
+    // current log partition file and the offset where the log manager shall
+    // continue to insert log records.
+
+    public static PhysicalLogLocator initializeLogAnchor(ILogManager logManager) throws ACIDException {
+        int fileId = 0;
+        long offset = 0;
+        LogManagerProperties logManagerProperties = logManager.getLogManagerProperties();
+        File logDir = new File(logManagerProperties.getLogDir());
+        try {
+            if (logDir.exists()) {
+                List<String> logFiles = getLogFiles(logManagerProperties);
+                if (logFiles == null || logFiles.size() == 0) {
+                    FileUtil.createFileIfNotExists(getLogFilePath(logManagerProperties, 0));
+                    if (LOGGER.isLoggable(Level.INFO)) {
+                        LOGGER.info("created a log file: " + getLogFilePath(logManagerProperties, 0));
+                    }
+                } else {
+                    File logFile = new File(LogUtil.getLogFilePath(logManagerProperties,
+                            Long.parseLong(logFiles.get(logFiles.size() - 1))));
+                    fileId = logFiles.size() - 1;
+                    offset = logFile.length();
+                }
+            } else {
+                FileUtil.createNewDirectory(logManagerProperties.getLogDir());
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("created the log directory: " + logManagerProperties.getLogDir());
+                }
+                FileUtil.createFileIfNotExists(getLogFilePath(logManagerProperties, 0));
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("created a log file: " + getLogFilePath(logManagerProperties, 0));
+                }
+            }
+        } catch (IOException ioe) {
+            throw new ACIDException("Unable to initialize log anchor", ioe);
+        }
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info(" file id :" + fileId + " offset " + offset);
+        }
+        return new PhysicalLogLocator(fileId, offset, logManager);
+    }
+
+    public static List<String> getLogFiles(final LogManagerProperties logManagerProperties) {
+        File logDir = new File(logManagerProperties.getLogDir());
+        String[] logFiles = new String[0];
+        List<String> logFileCollection = new ArrayList<String>();
+        if (logDir.exists()) {
+            logFiles = logDir.list(new FilenameFilter() {
+                public boolean accept(File dir, String name) {
+                    if (name.startsWith(logManagerProperties.getLogFilePrefix())) {
+                        return true;
+                    }
+                    return false;
+                }
+            });
+        }
+        for (String logFile : logFiles) {
+            logFileCollection.add(logFile.substring(logManagerProperties.getLogFilePrefix().length() + 1));
+        }
+        Collections.sort(logFileCollection, new Comparator<String>() {
+            @Override
+            public int compare(String arg0, String arg1) {
+                return Integer.parseInt(arg0) - Integer.parseInt(arg1);
+            }
+        });
+        return logFileCollection;
+    }
+
+    public static long getFileId(String logFilePath, LogManagerProperties logManagerProperties) {
+        String logFileName = logFilePath;
+        if (logFilePath.contains(File.separator)) {
+            logFileName = logFilePath.substring(logFilePath.lastIndexOf(File.separator));
+        }
+        return Long.parseLong(logFileName.substring(logFileName.indexOf(logManagerProperties.getLogFilePrefix())));
+    }
+
+    public static String getLogFilePath(LogManagerProperties logManagerProperties, long fileId) {
+        return logManagerProperties.getLogDir() + File.separator + logManagerProperties.getLogFilePrefix() + "_"
+                + fileId;
+    }
+
+    public static LogicalLogLocator getDummyLogicalLogLocator(ILogManager logManager) {
+        LogicalLogLocator logicalLogLocator = new LogicalLogLocator(-1, null, -1, logManager);
+        return logicalLogLocator;
+    }
+
+    /*
+     * given a lsn, get the offset within the log file where the corresponding
+     * log record is (to be) placed.
+     */
+    public static long getFileOffset(ILogManager logManager, long lsn) {
+        return lsn % logManager.getLogManagerProperties().getLogPartitionSize();
+    }
+
+    /*
+     * given a lsn, get the file id that contains the log record.
+     */
+    public static long getFileId(ILogManager logManager, long lsn) {
+        return lsn / logManager.getLogManagerProperties().getLogPartitionSize();
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogicalLogLocator.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/LogicalLogLocator.java
similarity index 96%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogicalLogLocator.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/LogicalLogLocator.java
index f9eec7d..81dc6e2 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogicalLogLocator.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/LogicalLogLocator.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.logging;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.util.concurrent.atomic.AtomicInteger;
 
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/MutableResourceId.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/MutableResourceId.java
new file mode 100644
index 0000000..a6cebd6
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/MutableResourceId.java
@@ -0,0 +1,30 @@
+package edu.uci.ics.asterix.common.transactions;
+
+public class MutableResourceId{
+    long id;
+
+    public MutableResourceId(long id) {
+        this.id = id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    @Override
+    public int hashCode() {
+        return (int)id;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if ((o == null) || !(o instanceof MutableResourceId)) {
+            return false;
+        }
+        return ((MutableResourceId) o).id == this.id;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/PhysicalLogLocator.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/PhysicalLogLocator.java
similarity index 96%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/PhysicalLogLocator.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/PhysicalLogLocator.java
index d8de007..7c0cff7 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/PhysicalLogLocator.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/PhysicalLogLocator.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.transaction.management.service.logging;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.util.concurrent.atomic.AtomicLong;
 
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ReusableLogContentObject.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ReusableLogContentObject.java
new file mode 100644
index 0000000..a327c10
--- /dev/null
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ReusableLogContentObject.java
@@ -0,0 +1,67 @@
+package edu.uci.ics.asterix.common.transactions;
+
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
+import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
+
+/**
+ * Represents the state of a transaction thread. The state contains information
+ * that includes the tuple being operated, the operation and the location of the
+ * log record corresponding to the operation.
+ */
+public class ReusableLogContentObject {
+
+    private LogicalLogLocator logicalLogLocator;
+    private IndexOperation newOperation;
+    private ITupleReference newValue;
+    private IndexOperation oldOperation;
+    private ITupleReference oldValue;
+
+    public ReusableLogContentObject(LogicalLogLocator logicalLogLocator, IndexOperation newOperation,
+            ITupleReference newValue, IndexOperation oldOperation, ITupleReference oldValue) {
+        this.logicalLogLocator = logicalLogLocator;
+        this.newOperation = newOperation;
+        this.newValue = newValue;
+        this.oldOperation = oldOperation;
+        this.oldValue = oldValue;
+    }
+
+    public synchronized LogicalLogLocator getLogicalLogLocator() {
+        return logicalLogLocator;
+    }
+
+    public synchronized void setLogicalLogLocator(LogicalLogLocator logicalLogLocator) {
+        this.logicalLogLocator = logicalLogLocator;
+    }
+
+    public synchronized void setNewOperation(IndexOperation newOperation) {
+        this.newOperation = newOperation;
+    }
+
+    public synchronized IndexOperation getNewOperation() {
+        return newOperation;
+    }
+
+    public synchronized void setNewValue(ITupleReference newValue) {
+        this.newValue = newValue;
+    }
+
+    public synchronized ITupleReference getNewValue() {
+        return newValue;
+    }
+
+    public synchronized void setOldOperation(IndexOperation oldOperation) {
+        this.oldOperation = oldOperation;
+    }
+
+    public synchronized IndexOperation getOldOperation() {
+        return oldOperation;
+    }
+
+    public synchronized void setOldValue(ITupleReference oldValue) {
+        this.oldValue = oldValue;
+    }
+
+    public synchronized ITupleReference getOldValue() {
+        return oldValue;
+    }
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/TransactionalResourceManagerRepository.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/TransactionalResourceManagerRepository.java
similarity index 92%
rename from asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/TransactionalResourceManagerRepository.java
rename to asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/TransactionalResourceManagerRepository.java
index d38226b..35f69d4 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/TransactionalResourceManagerRepository.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/TransactionalResourceManagerRepository.java
@@ -13,13 +13,11 @@
  * limitations under the License.
  */
 
-package edu.uci.ics.asterix.transaction.management.resource;
+package edu.uci.ics.asterix.common.transactions;
 
 import java.util.HashMap;
 import java.util.Map;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
-
 /**
  * Represents a repository containing Resource Managers and Resources in the
  * transaction eco-system. Operations on a resource require acquiring
diff --git a/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java b/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java
index 8449971..acb1e6a 100644
--- a/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java
+++ b/asterix-common/src/test/java/edu/uci/ics/asterix/test/aql/TestsUtils.java
@@ -342,8 +342,7 @@
 
         List<CompilationUnit> cUnits = testCaseCtx.getTestCase().getCompilationUnit();
         for (CompilationUnit cUnit : cUnits) {
-            LOGGER.info("[TEST]: " + testCaseCtx.getTestCase().getFilePath() + "/" + cUnit.getName());
-
+            
             testFileCtxs = testCaseCtx.getTestFiles(cUnit);
             expectedResultFileCtxs = testCaseCtx.getExpectedResultFiles(cUnit);
 
@@ -360,10 +359,8 @@
                             break;
                         case "query":
                             result = TestsUtils.executeQuery(statement);
-                            if (!cUnit.getExpectedError().isEmpty()) {
-                                if (!result.has("error")) {
-                                    throw new Exception("Test \"" + testFile + "\" FAILED!");
-                                }
+                            if (result.has("error-code")) {
+                                throw new Exception("Test \"" + testFile + "\" FAILED!\n" + result + "\n");
                             } else {
                                 expectedResultFile = expectedResultFileCtxs.get(queryCount).getFile();
 
@@ -378,6 +375,7 @@
 
                                 TestsUtils.runScriptAndCompareWithResult(testFile, new PrintWriter(System.err),
                                         expectedResultFile, actualFile);
+                                LOGGER.info("[TEST]: " + testCaseCtx.getTestCase().getFilePath() + "/" + cUnit.getName() +  " PASSED ");
                             }
                             queryCount++;
                             break;
@@ -387,6 +385,7 @@
                         default:
                             throw new IllegalArgumentException("No statements of type " + ctx.getType());
                     }
+                    
                 } catch (Exception e) {
                     if (cUnit.getExpectedError().isEmpty()) {
                         throw new Exception("Test \"" + testFile + "\" FAILED!", e);
diff --git a/asterix-doc/src/site/markdown/AccessingExternalDataInAsterixDB.md b/asterix-doc/src/site/markdown/AccessingExternalDataInAsterixDB.md
index 7e49a0f..7319094 100644
--- a/asterix-doc/src/site/markdown/AccessingExternalDataInAsterixDB.md
+++ b/asterix-doc/src/site/markdown/AccessingExternalDataInAsterixDB.md
@@ -14,7 +14,7 @@
 _For constructing an example, we assume a single machine setup._
 
 Similar to a regular dataset, an external dataset has an associated datatype.  We shall first create the datatype associated with each record in Lineitem data.
-Paste the following in the query textbox on the webpage at http://127.0.0.1 and hit 'Execute'.
+Paste the following in the query textbox on the webpage at http://127.0.0.1:19001 and hit 'Execute'.
 
 
         create dataverse ExternalFileDemo;
@@ -100,7 +100,7 @@
         127.0.0.1:///home/joe/lineitem.tbl.
 
 
-In your web-browser, navigate to 127.0.0.1 and paste the above to the query text box. Finally hit 'Execute'.
+In your web-browser, navigate to 127.0.0.1:19001 and paste the above to the query text box. Finally hit 'Execute'.
 
 Next we move over to the the section [Writing Queries against an External Dataset](#Writing_Queries_against_an_External_Dataset) and try a sample query against the external dataset.
 
diff --git a/asterix-events/pom.xml b/asterix-events/pom.xml
index 94042e1..108bde2 100644
--- a/asterix-events/pom.xml
+++ b/asterix-events/pom.xml
@@ -173,5 +173,10 @@
      <type>jar</type>
      <scope>compile</scope>
     </dependency>
+   <dependency>
+   	<groupId>log4j</groupId>
+   	<artifactId>log4j</artifactId>
+   	<version>1.2.9</version>
+   </dependency>
   </dependencies>
 </project>
diff --git a/asterix-external-data/pom.xml b/asterix-external-data/pom.xml
index 2e99b7c..842cd67 100644
--- a/asterix-external-data/pom.xml
+++ b/asterix-external-data/pom.xml
@@ -71,9 +71,7 @@
 		<dependency>
 			<groupId>javax.servlet</groupId>
 			<artifactId>servlet-api</artifactId>
-			<version>2.5</version>
 			<type>jar</type>
-			<scope>compile</scope>
 		</dependency>
 		<dependency>
 			<groupId>junit</groupId>
@@ -119,6 +117,12 @@
 			<version>1.0.0</version>
 			<type>jar</type>
 			<scope>compile</scope>
+			<exclusions>
+				<exclusion>
+					<artifactId>rome</artifactId>
+					<groupId>net.java.dev.rome</groupId>
+				</exclusion>
+			</exclusions>
 		</dependency>
 		<dependency>
 			<groupId>rome</groupId>
diff --git a/asterix-metadata/pom.xml b/asterix-metadata/pom.xml
index 425e8ff..6f70568 100644
--- a/asterix-metadata/pom.xml
+++ b/asterix-metadata/pom.xml
@@ -42,6 +42,12 @@
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-runtime</artifactId>
+			<version>0.0.6-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
 			<groupId>org.apache.hadoop</groupId>
 			<artifactId>hadoop-core</artifactId>
 			<version>0.20.2</version>
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java
index 0382315..1496208 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataCache.java
@@ -22,8 +22,8 @@
 
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
-import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.Function;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java
index 09ec2f7..f9f5260 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataManager.java
@@ -21,7 +21,9 @@
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 
 import edu.uci.ics.asterix.common.config.AsterixMetadataProperties;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
 import edu.uci.ics.asterix.metadata.api.IMetadataManager;
 import edu.uci.ics.asterix.metadata.api.IMetadataNode;
@@ -33,8 +35,6 @@
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
 
 /**
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java
index 5bdf086..5aca7c4 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataNode.java
@@ -19,11 +19,18 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
-import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
+import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext.TransactionType;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.metadata.api.IMetadataIndex;
 import edu.uci.ics.asterix.metadata.api.IMetadataNode;
@@ -55,16 +62,9 @@
 import edu.uci.ics.asterix.om.base.AMutableString;
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.opcallbacks.PrimaryIndexModificationOperationCallback;
 import edu.uci.ics.asterix.transaction.management.opcallbacks.SecondaryIndexModificationOperationCallback;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetIdFactory;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext.TransactionType;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
@@ -93,7 +93,7 @@
     private static final DatasetId METADATA_DATASET_ID = new DatasetId(MetadataPrimaryIndexes.METADATA_DATASET_ID);
 
     private IIndexLifecycleManager indexLifecycleManager;
-    private TransactionSubsystem transactionSubsystem;
+    private ITransactionSubsystem transactionSubsystem;
 
     public static final MetadataNode INSTANCE = new MetadataNode();
 
@@ -101,7 +101,7 @@
         super();
     }
 
-    public void initialize(AsterixAppRuntimeContext runtimeContext) {
+    public void initialize(IAsterixAppRuntimeContext runtimeContext) {
         this.transactionSubsystem = runtimeContext.getTransactionSubsystem();
         this.indexLifecycleManager = runtimeContext.getIndexLifecycleManager();
     }
@@ -113,14 +113,14 @@
 
     @Override
     public void commitTransaction(JobId jobId) throws RemoteException, ACIDException {
-        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        ITransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
         transactionSubsystem.getTransactionManager().commitTransaction(txnCtx, new DatasetId(-1), -1);
     }
 
     @Override
     public void abortTransaction(JobId jobId) throws RemoteException, ACIDException {
         try {
-            TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+            ITransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
             transactionSubsystem.getTransactionManager().abortTransaction(txnCtx, new DatasetId(-1), -1);
         } catch (ACIDException e) {
             e.printStackTrace();
@@ -130,13 +130,13 @@
 
     @Override
     public void lock(JobId jobId, byte lockMode) throws ACIDException, RemoteException {
-        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        ITransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
         transactionSubsystem.getLockManager().lock(METADATA_DATASET_ID, -1, lockMode, txnCtx);
     }
 
     @Override
     public void unlock(JobId jobId) throws ACIDException, RemoteException {
-        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        ITransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
         transactionSubsystem.getLockManager().unlock(METADATA_DATASET_ID, -1, txnCtx);
     }
 
@@ -271,7 +271,7 @@
 
         IIndexAccessor indexAccessor = lsmIndex.createAccessor(modCallback, NoOpOperationCallback.INSTANCE);
 
-        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        ITransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
         txnCtx.setTransactionType(TransactionType.READ_WRITE);
 
         // TODO: fix exceptions once new BTree exception model is in hyracks.
@@ -282,7 +282,7 @@
 
     private IModificationOperationCallback createIndexModificationCallback(JobId jobId, long resourceId,
             IMetadataIndex metadataIndex, ILSMIndex lsmIndex, IndexOperation indexOp) throws Exception {
-        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        ITransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
 
         if (metadataIndex.isPrimaryIndex()) {
             return new PrimaryIndexModificationOperationCallback(metadataIndex.getDatasetId().getId(),
@@ -573,7 +573,7 @@
                 lsmIndex, IndexOperation.DELETE);
         IIndexAccessor indexAccessor = lsmIndex.createAccessor(modCallback, NoOpOperationCallback.INSTANCE);
 
-        TransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
+        ITransactionContext txnCtx = transactionSubsystem.getTransactionManager().getTransactionContext(jobId);
         txnCtx.setTransactionType(TransactionType.READ_WRITE);
 
         indexAccessor.delete(tuple);
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java
index cbd37d6..c76fb16 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataTransactionContext.java
@@ -18,6 +18,7 @@
 import java.util.ArrayList;
 
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.external.dataset.adapter.AdapterIdentifier;
 import edu.uci.ics.asterix.metadata.api.IMetadataEntity;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
@@ -27,7 +28,6 @@
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 
 /**
  * Used to implement serializable transactions against the MetadataCache.
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataIndex.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataIndex.java
index ca6ab08..efd8ecb 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataIndex.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataIndex.java
@@ -17,16 +17,13 @@
 
 import java.util.List;
 
+import edu.uci.ics.asterix.common.transactions.DatasetId;
 import edu.uci.ics.asterix.om.types.ARecordType;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
 
 /**
  * Descriptor interface for a primary or secondary index on metadata datasets.
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java
index f11144e..527ee91 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataManager.java
@@ -18,19 +18,18 @@
 import java.rmi.RemoteException;
 import java.util.List;
 
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
-import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 
 /**
  * A metadata manager provides user access to Asterix metadata (e.g., types,
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java
index e0b5e96..9ec233b 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataNode.java
@@ -20,18 +20,18 @@
 import java.rmi.RemoteException;
 import java.util.List;
 
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.DatasourceAdapter;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.Node;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 
 /**
  * A metadata node stores metadata in its local storage structures (currently
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IValueExtractor.java
index d8958dd..6994bdc 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IValueExtractor.java
@@ -17,8 +17,8 @@
 
 import java.io.IOException;
 
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.metadata.MetadataException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
index f3ccc9c..422fdfd 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataBootstrap.java
@@ -26,13 +26,15 @@
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
 import edu.uci.ics.asterix.common.config.AsterixMetadataProperties;
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
 import edu.uci.ics.asterix.common.config.IAsterixPropertiesProvider;
-import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
-import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.common.transactions.TransactionalResourceManagerRepository;
 import edu.uci.ics.asterix.external.adapter.factory.IAdapterFactory;
 import edu.uci.ics.asterix.external.dataset.adapter.AdapterIdentifier;
 import edu.uci.ics.asterix.metadata.IDatasetDetails;
@@ -55,13 +57,11 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.resource.LSMBTreeLocalResourceMetadata;
 import edu.uci.ics.asterix.transaction.management.resource.PersistentLocalResourceFactoryProvider;
-import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceManagerRepository;
 import edu.uci.ics.asterix.transaction.management.service.logging.IndexResourceManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.transaction.management.service.transaction.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
 import edu.uci.ics.hyracks.api.application.INCApplicationContext;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
@@ -73,6 +73,7 @@
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
+import edu.uci.ics.hyracks.storage.am.common.util.IndexFileNameUtil;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.impls.LSMBTree;
 import edu.uci.ics.hyracks.storage.am.lsm.btree.util.LSMBTreeUtils;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.IInMemoryBufferCache;
@@ -101,7 +102,7 @@
     private static final int DEFAULT_MEM_PAGE_SIZE = 32768;
     private static final int DEFAULT_MEM_NUM_PAGES = 100;
 
-    private static AsterixAppRuntimeContext runtimeContext;
+    private static IAsterixAppRuntimeContext runtimeContext;
 
     private static IBufferCache bufferCache;
     private static IFileMapProvider fileMapProvider;
@@ -132,7 +133,7 @@
 
     public static void startUniverse(IAsterixPropertiesProvider asterixPropertiesProvider,
             INCApplicationContext ncApplicationContext, boolean isNewUniverse) throws Exception {
-        runtimeContext = (AsterixAppRuntimeContext) ncApplicationContext.getApplicationObject();
+        runtimeContext = (IAsterixAppRuntimeContext) ncApplicationContext.getApplicationObject();
         propertiesProvider = asterixPropertiesProvider;
 
         // Initialize static metadata objects, such as record types and metadata
@@ -333,7 +334,9 @@
     }
 
     private static void enlistMetadataDataset(IMetadataIndex index, boolean create) throws Exception {
-        String filePath = metadataStore + File.separator + index.getFileNameRelativePath();
+        String filePath = IndexFileNameUtil.prepareFileName(
+                metadataStore + File.separator + index.getFileNameRelativePath(),
+                runtimeContext.getMetaDataIODeviceId());
         FileReference file = new FileReference(new File(filePath));
         IInMemoryBufferCache memBufferCache = new InMemoryBufferCache(new HeapBufferAllocator(), DEFAULT_MEM_PAGE_SIZE,
                 DEFAULT_MEM_NUM_PAGES, new TransientFileMapManager());
@@ -350,7 +353,7 @@
                     fileMapProvider, typeTraits, comparatorFactories, bloomFilterKeyFields,
                     runtimeContext.getBloomFilterFalsePositiveRate(), runtimeContext.getLSMMergePolicy(),
                     runtimeContext.getLSMBTreeOperationTrackerFactory(), runtimeContext.getLSMIOScheduler(),
-                    AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER);
+                    AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, runtimeContext.getMetaDataIODeviceId());
             lsmBtree.create();
             resourceID = runtimeContext.getResourceIdFactory().createId();
             indexLifecycleManager.register(resourceID, lsmBtree);
@@ -358,12 +361,14 @@
             AsterixStorageProperties storageProperties = propertiesProvider.getStorageProperties();
             ILocalResourceMetadata localResourceMetadata = new LSMBTreeLocalResourceMetadata(typeTraits,
                     comparatorFactories, bloomFilterKeyFields, index.isPrimaryIndex(),
-                    storageProperties.getMemoryComponentPageSize(), storageProperties.getMemoryComponentNumPages());
+                    storageProperties.getMemoryComponentPageSize(), storageProperties.getMemoryComponentNumPages(),
+                    runtimeContext.getMetaDataIODeviceId());
             ILocalResourceFactoryProvider localResourceFactoryProvider = new PersistentLocalResourceFactoryProvider(
                     localResourceMetadata, LocalResource.LSMBTreeResource);
             ILocalResourceFactory localResourceFactory = localResourceFactoryProvider.getLocalResourceFactory();
-            localResourceRepository.insert(localResourceFactory.createLocalResource(resourceID, file.getFile()
-                    .getPath(), 0));
+            localResourceRepository.insert(
+                    localResourceFactory.createLocalResource(resourceID, file.getFile().getPath(), 0),
+                    runtimeContext.getMetaDataIODeviceId());
         } else {
             resourceID = localResourceRepository.getResourceByName(file.getFile().getPath()).getResourceId();
             lsmBtree = (LSMBTree) indexLifecycleManager.getIndex(resourceID);
@@ -372,7 +377,7 @@
                         bufferCache, fileMapProvider, typeTraits, comparatorFactories, bloomFilterKeyFields,
                         runtimeContext.getBloomFilterFalsePositiveRate(), runtimeContext.getLSMMergePolicy(),
                         runtimeContext.getLSMBTreeOperationTrackerFactory(), runtimeContext.getLSMIOScheduler(),
-                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER);
+                        AsterixRuntimeComponentsProvider.LSMBTREE_PROVIDER, runtimeContext.getMetaDataIODeviceId());
                 indexLifecycleManager.register(resourceID, lsmBtree);
             }
         }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataIndex.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataIndex.java
index c0ce030..8036cfb 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataIndex.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataIndex.java
@@ -20,6 +20,7 @@
 import java.util.List;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixRuntimeException;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryHashFunctionFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
@@ -27,17 +28,12 @@
 import edu.uci.ics.asterix.metadata.api.IMetadataIndex;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
 import edu.uci.ics.hyracks.api.io.FileReference;
-import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
 
 /**
  * Descriptor for a primary or secondary index on metadata datasets.
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
index 2fc3e59..5bd7960 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
@@ -32,7 +32,6 @@
     public static IMetadataIndex NODE_DATASET;
     public static IMetadataIndex NODEGROUP_DATASET;
     public static IMetadataIndex FUNCTION_DATASET;
-
     public static final int METADATA_DATASET_ID = 0;
     public static final int DATAVERSE_DATASET_ID = 1;
     public static final int DATASET_DATASET_ID = 2;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledMetadataDeclarations.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledMetadataDeclarations.java
index f79b9b7..5444ac2 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledMetadataDeclarations.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlCompiledMetadataDeclarations.java
@@ -22,7 +22,6 @@
 import java.util.logging.Logger;
 
 import edu.uci.ics.asterix.common.annotations.TypeDataGen;
-import edu.uci.ics.asterix.common.api.AsterixAppContextInfo;
 import edu.uci.ics.asterix.common.config.AsterixMetadataProperties;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
@@ -38,6 +37,7 @@
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
index 2e45802..117f492 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlMetadataProvider.java
@@ -23,15 +23,16 @@
 import java.util.Map;
 import java.util.logging.Logger;
 
-import edu.uci.ics.asterix.common.api.AsterixAppContextInfo;
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
 import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
+import edu.uci.ics.asterix.common.context.ITransactionSubsystemProvider;
 import edu.uci.ics.asterix.common.context.TransactionSubsystemProvider;
 import edu.uci.ics.asterix.common.dataflow.IAsterixApplicationContextInfo;
 import edu.uci.ics.asterix.common.parse.IParseFileSplitsDecl;
+import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.dataflow.data.nontagged.valueproviders.AqlPrimitiveValueProviderFactory;
 import edu.uci.ics.asterix.external.adapter.factory.IAdapterFactory;
 import edu.uci.ics.asterix.external.adapter.factory.IGenericDatasetAdapterFactory;
@@ -64,6 +65,8 @@
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.util.AsterixAppContextInfo;
+import edu.uci.ics.asterix.om.util.AsterixClusterProperties;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
 import edu.uci.ics.asterix.runtime.base.AsterixTupleFilterFactory;
 import edu.uci.ics.asterix.runtime.formats.FormatUtils;
@@ -74,8 +77,7 @@
 import edu.uci.ics.asterix.transaction.management.opcallbacks.PrimaryIndexSearchOperationCallbackFactory;
 import edu.uci.ics.asterix.transaction.management.opcallbacks.SecondaryIndexModificationOperationCallbackFactory;
 import edu.uci.ics.asterix.transaction.management.opcallbacks.SecondaryIndexSearchOperationCallbackFactory;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.transaction.management.service.transaction.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
@@ -417,7 +419,8 @@
                 adapterFactoryClassname = adapterFactoryMapping.get(adapterName);
                 if (adapterFactoryClassname != null) {
                 } else {
-                    // adapterName has been provided as a fully qualified classname 
+                    // adapterName has been provided as a fully qualified
+                    // classname
                     adapterFactoryClassname = adapterName;
                 }
                 adapterFactory = (IAdapterFactory) Class.forName(adapterFactoryClassname).newInstance();
@@ -530,7 +533,7 @@
                 }
 
                 AqlMetadataImplConfig aqlMetadataImplConfig = (AqlMetadataImplConfig) implConfig;
-                TransactionSubsystemProvider txnSubsystemProvider = new TransactionSubsystemProvider();
+                ITransactionSubsystemProvider txnSubsystemProvider = new TransactionSubsystemProvider();
                 if (aqlMetadataImplConfig != null && aqlMetadataImplConfig.isInstantLock()) {
                     searchCallbackFactory = new PrimaryIndexInstantSearchOperationCallbackFactory(jobId, datasetId,
                             primaryKeyFields, txnSubsystemProvider, ResourceType.LSM_BTREE);
@@ -550,6 +553,7 @@
                             storageProperties.getMemoryComponentPageSize(),
                             storageProperties.getMemoryComponentNumPages(),
                             storageProperties.getBloomFilterFalsePositiveRate()), retainInput, searchCallbackFactory);
+
             return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeSearchOp, spPc.second);
 
         } catch (MetadataException me) {
@@ -767,9 +771,11 @@
                 numElementsHint = Long.parseLong(dataset.getHints().get("CARDINALITY"));
             }
 
-            //TODO
-            //figure out the right behavior of the bulkload and then give the right callback
-            //(ex. what's the expected behavior when there is an error during bulkload?)
+            // TODO
+            // figure out the right behavior of the bulkload and then give the
+            // right callback
+            // (ex. what's the expected behavior when there is an error during
+            // bulkload?)
             TreeIndexBulkLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
                     appContext.getStorageManagerInterface(), appContext.getIndexLifecycleManagerProvider(),
                     splitsAndConstraint.first, typeTraits, comparatorFactories, bloomFilterKeyFields, fieldPermutation,
@@ -828,7 +834,7 @@
             Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
                     dataSource.getId().getDataverseName(), datasetName, indexName);
 
-            //prepare callback
+            // prepare callback
             JobId jobId = ((JobEventListenerFactory) spec.getJobletEventListenerFactory()).getJobId();
             int datasetId = dataset.getDatasetId();
             int[] primaryKeyFields = new int[numKeys];
@@ -1021,7 +1027,7 @@
             Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
                     dataverseName, datasetName, indexName);
 
-            //prepare callback
+            // prepare callback
             JobId jobId = ((JobEventListenerFactory) spec.getJobletEventListenerFactory()).getJobId();
             int datasetId = dataset.getDatasetId();
             int[] primaryKeyFields = new int[primaryKeys.size()];
@@ -1136,7 +1142,8 @@
             tokenComparatorFactories[0] = NonTaggedFormatUtil.getTokenBinaryComparatorFactory(secondaryKeyType);
             tokenTypeTraits[0] = NonTaggedFormatUtil.getTokenTypeTrait(secondaryKeyType);
             if (isPartitioned) {
-                // The partitioning field is hardcoded to be a short *without* an Asterix type tag.
+                // The partitioning field is hardcoded to be a short *without*
+                // an Asterix type tag.
                 tokenComparatorFactories[1] = PointableBinaryComparatorFactory.of(ShortPointable.FACTORY);
                 tokenTypeTraits[1] = ShortPointable.TYPE_TRAITS;
             }
@@ -1147,7 +1154,7 @@
             Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
                     dataverseName, datasetName, indexName);
 
-            //prepare callback
+            // prepare callback
             JobId jobId = ((JobEventListenerFactory) spec.getJobletEventListenerFactory()).getJobId();
             int datasetId = dataset.getDatasetId();
             int[] primaryKeyFields = new int[primaryKeys.size()];
@@ -1242,7 +1249,7 @@
             Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
                     dataverseName, datasetName, indexName);
 
-            //prepare callback
+            // prepare callback
             JobId jobId = ((JobEventListenerFactory) spec.getJobletEventListenerFactory()).getJobId();
             int datasetId = dataset.getDatasetId();
             int[] primaryKeyFields = new int[numPrimaryKeys];
@@ -1336,8 +1343,13 @@
                 continue;
             }
             for (int i = 0; i < nodeStores.length; i++) {
-                File f = new File(nodeStores[i] + File.separator + relPathFile);
-                splits.add(new FileSplit(node, new FileReference(f)));
+                int numIODevices = AsterixClusterProperties.INSTANCE.getNumberOfIODevices(node);
+                for (int j = 0; j < nodeStores.length; j++) {
+                    for (int k = 0; k < numIODevices; k++) {
+                        File f = new File(nodeStores[j] + File.separator + relPathFile);
+                        splits.add(new FileSplit(node, new FileReference(f), k));
+                    }
+                }
             }
         }
         return splits.toArray(new FileSplit[] {});
@@ -1366,9 +1378,17 @@
                     LOGGER.warning("Node " + nd + " has no stores.");
                     throw new AlgebricksException("Node " + nd + " has no stores.");
                 } else {
+                    int numIODevices;
+                    if (datasetDetails.getNodeGroupName().compareTo(MetadataConstants.METADATA_NODEGROUP_NAME) == 0) {
+                        numIODevices = 1;
+                    } else {
+                        numIODevices = AsterixClusterProperties.INSTANCE.getNumberOfIODevices(nd);
+                    }
                     for (int j = 0; j < nodeStores.length; j++) {
-                        File f = new File(nodeStores[j] + File.separator + relPathFile);
-                        splitArray.add(new FileSplit(nd, new FileReference(f)));
+                        for (int k = 0; k < numIODevices; k++) {
+                            File f = new File(nodeStores[j] + File.separator + relPathFile);
+                            splitArray.add(new FileSplit(nd, new FileReference(f), k));
+                        }
                     }
                 }
             }
@@ -1415,21 +1435,6 @@
         return dataverseName + File.separator + fileName;
     }
 
-    public Pair<IFileSplitProvider, IFileSplitProvider> getInvertedIndexFileSplitProviders(
-            IFileSplitProvider splitProvider) {
-        int numSplits = splitProvider.getFileSplits().length;
-        FileSplit[] btreeSplits = new FileSplit[numSplits];
-        FileSplit[] invListsSplits = new FileSplit[numSplits];
-        for (int i = 0; i < numSplits; i++) {
-            String nodeName = splitProvider.getFileSplits()[i].getNodeName();
-            String path = splitProvider.getFileSplits()[i].getLocalFile().getFile().getPath();
-            btreeSplits[i] = new FileSplit(nodeName, path + "_$btree");
-            invListsSplits[i] = new FileSplit(nodeName, path + "_$invlists");
-        }
-        return new Pair<IFileSplitProvider, IFileSplitProvider>(new ConstantFileSplitProvider(btreeSplits),
-                new ConstantFileSplitProvider(invListsSplits));
-    }
-
     public Dataset findDataset(String dataverse, String dataset) throws AlgebricksException {
         try {
             return MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverse, dataset);
@@ -1461,10 +1466,13 @@
 
     public AlgebricksPartitionConstraint getClusterLocations() {
         ArrayList<String> locs = new ArrayList<String>();
-        for (String k : stores.keySet()) {
-            String[] nodeStores = stores.get(k);
+        for (String i : stores.keySet()) {
+            String[] nodeStores = stores.get(i);
+            int numIODevices = AsterixClusterProperties.INSTANCE.getNumberOfIODevices(i);
             for (int j = 0; j < nodeStores.length; j++) {
-                locs.add(k);
+                for (int k = 0; k < numIODevices; k++) {
+                    locs.add(i);
+                }
             }
         }
         String[] cluster = new String[locs.size()];
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatatypeTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatatypeTupleTranslator.java
index 7cfa6d0..6c55f12 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatatypeTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/DatatypeTupleTranslator.java
@@ -29,6 +29,7 @@
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
 import edu.uci.ics.asterix.builders.RecordBuilder;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataNode;
@@ -49,7 +50,6 @@
 import edu.uci.ics.asterix.om.types.AbstractCollectionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatasetNameValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatasetNameValueExtractor.java
index e554643..68ff549 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatasetNameValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatasetNameValueExtractor.java
@@ -19,11 +19,11 @@
 import java.io.DataInput;
 import java.io.DataInputStream;
 
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AObjectSerializerDeserializer;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
 import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatatypeNameValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatatypeNameValueExtractor.java
index 2e4dbe4..62e7a28 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatatypeNameValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/DatatypeNameValueExtractor.java
@@ -20,12 +20,12 @@
 import java.io.DataInputStream;
 import java.rmi.RemoteException;
 
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AObjectSerializerDeserializer;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataNode;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
 import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/MetadataEntityValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/MetadataEntityValueExtractor.java
index 7ae334e..9593783 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/MetadataEntityValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/MetadataEntityValueExtractor.java
@@ -17,10 +17,10 @@
 
 import java.io.IOException;
 
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.api.IMetadataEntityTupleTranslator;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/NestedDatatypeNameValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/NestedDatatypeNameValueExtractor.java
index d4109cd..81da41b 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/NestedDatatypeNameValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/NestedDatatypeNameValueExtractor.java
@@ -19,11 +19,11 @@
 import java.io.DataInput;
 import java.io.DataInputStream;
 
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AObjectSerializerDeserializer;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
 import edu.uci.ics.asterix.om.base.AString;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/TupleCopyValueExtractor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/TupleCopyValueExtractor.java
index 03bc963..fbf8cc8 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/TupleCopyValueExtractor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/valueextractors/TupleCopyValueExtractor.java
@@ -18,9 +18,9 @@
 import java.io.IOException;
 import java.nio.ByteBuffer;
 
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.api.IValueExtractor;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
diff --git a/asterix-om/pom.xml b/asterix-om/pom.xml
index f7ef8d3..ac1aa7f 100644
--- a/asterix-om/pom.xml
+++ b/asterix-om/pom.xml
@@ -30,6 +30,12 @@
 			<scope>compile</scope>
 		</dependency>
 		<dependency>
+			<groupId>edu.uci.ics.asterix</groupId>
+			<artifactId>asterix-transactions</artifactId>
+			<version>0.0.6-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
 		</dependency>
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/ListItemBinaryComparatorFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/ListItemBinaryComparatorFactory.java
new file mode 100644
index 0000000..6e80fe6
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/ListItemBinaryComparatorFactory.java
@@ -0,0 +1,165 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.dataflow.data.nontagged.comparators;
+
+import edu.uci.ics.asterix.formats.nontagged.UTF8StringLowercasePointable;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparator;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
+import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryComparatorFactory;
+import edu.uci.ics.hyracks.data.std.primitive.DoublePointable;
+import edu.uci.ics.hyracks.data.std.primitive.FloatPointable;
+import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
+import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
+
+public class ListItemBinaryComparatorFactory implements IBinaryComparatorFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    public static final ListItemBinaryComparatorFactory INSTANCE = new ListItemBinaryComparatorFactory();
+
+    private ListItemBinaryComparatorFactory() {
+    }
+
+    @Override
+    public IBinaryComparator createBinaryComparator() {
+        return createBinaryComparator(ATypeTag.NULL, ATypeTag.NULL, false);
+    }
+
+    public IBinaryComparator createBinaryComparator(final ATypeTag firstItemTypeTag, final ATypeTag secondItemTypeTag,
+            final boolean ignoreCase) {
+        return new IBinaryComparator() {
+            final IBinaryComparator ascBoolComp = BooleanBinaryComparatorFactory.INSTANCE.createBinaryComparator();
+            final IBinaryComparator ascIntComp = new PointableBinaryComparatorFactory(IntegerPointable.FACTORY)
+                    .createBinaryComparator();
+            final IBinaryComparator ascLongComp = LongBinaryComparatorFactory.INSTANCE.createBinaryComparator();
+            final IBinaryComparator ascStrComp = new PointableBinaryComparatorFactory(UTF8StringPointable.FACTORY)
+                    .createBinaryComparator();
+            final IBinaryComparator ascLowerCaseStrComp = new PointableBinaryComparatorFactory(
+                    UTF8StringLowercasePointable.FACTORY).createBinaryComparator();
+            final IBinaryComparator ascFloatComp = new PointableBinaryComparatorFactory(FloatPointable.FACTORY)
+                    .createBinaryComparator();
+            final IBinaryComparator ascDoubleComp = new PointableBinaryComparatorFactory(DoublePointable.FACTORY)
+                    .createBinaryComparator();
+            final IBinaryComparator ascRectangleComp = ARectanglePartialBinaryComparatorFactory.INSTANCE
+                    .createBinaryComparator();
+            final IBinaryComparator ascCircleComp = ACirclePartialBinaryComparatorFactory.INSTANCE
+                    .createBinaryComparator();
+            final IBinaryComparator ascDurationComp = ADurationPartialBinaryComparatorFactory.INSTANCE
+                    .createBinaryComparator();
+            final IBinaryComparator ascIntervalComp = AIntervalPartialBinaryComparatorFactory.INSTANCE
+                    .createBinaryComparator();
+            final IBinaryComparator ascLineComp = ALinePartialBinaryComparatorFactory.INSTANCE.createBinaryComparator();
+            final IBinaryComparator ascPointComp = APointPartialBinaryComparatorFactory.INSTANCE
+                    .createBinaryComparator();
+            final IBinaryComparator ascPoint3DComp = APoint3DPartialBinaryComparatorFactory.INSTANCE
+                    .createBinaryComparator();
+            final IBinaryComparator ascPolygonComp = APolygonPartialBinaryComparatorFactory.INSTANCE
+                    .createBinaryComparator();
+            final IBinaryComparator rawComp = RawBinaryComparatorFactory.INSTANCE.createBinaryComparator();
+
+            @Override
+            public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
+
+                if (b1[s1] == ATypeTag.NULL.serialize()) {
+                    if (b2[s2] == ATypeTag.NULL.serialize())
+                        return 0;
+                    else
+                        return -1;
+                } else {
+                    if (b2[s2] == ATypeTag.NULL.serialize())
+                        return 1;
+                }
+
+                ATypeTag tag1 = firstItemTypeTag;
+                int skip1 = 0;
+                if (firstItemTypeTag == ATypeTag.ANY) {
+                    tag1 = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b1[s1]);
+                    skip1 = 1;
+                }
+
+                ATypeTag tag2 = secondItemTypeTag;
+                int skip2 = 0;
+                if (secondItemTypeTag == ATypeTag.ANY) {
+                    tag2 = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b2[s2]);
+                    skip2 = 1;
+                }
+
+                if (tag1 != tag2) {
+                    return rawComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                }
+
+                switch (tag1) {
+                    case BOOLEAN: {
+                        return ascBoolComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case TIME:
+                    case DATE:
+                    case YEARMONTHDURATION:
+                    case INT32: {
+                        return ascIntComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case DATETIME:
+                    case DAYTIMEDURATION:
+                    case INT64: {
+                        return ascLongComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case FLOAT: {
+                        return ascFloatComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case DOUBLE: {
+                        return ascDoubleComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case STRING: {
+                        if (ignoreCase) {
+                            return ascLowerCaseStrComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                        } else {
+                            return ascStrComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                        }
+                    }
+                    case RECTANGLE: {
+                        return ascRectangleComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case CIRCLE: {
+                        return ascCircleComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case POINT: {
+                        return ascPointComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case POINT3D: {
+                        return ascPoint3DComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case LINE: {
+                        return ascLineComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case POLYGON: {
+                        return ascPolygonComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case DURATION: {
+                        return ascDurationComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    case INTERVAL: {
+                        return ascIntervalComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                    default: {
+                        return rawComp.compare(b1, s1 + skip1, l1 - skip1, b2, s2 + skip2, l2 - skip2);
+                    }
+                }
+            }
+        };
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/ListItemBinaryHashFunctionFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/ListItemBinaryHashFunctionFactory.java
new file mode 100644
index 0000000..0fab7de
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/ListItemBinaryHashFunctionFactory.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.dataflow.data.nontagged.hash;
+
+import java.io.IOException;
+
+import edu.uci.ics.asterix.formats.nontagged.UTF8StringLowercasePointable;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.EnumDeserializer;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
+import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
+import edu.uci.ics.hyracks.data.std.accessors.MurmurHash3BinaryHashFunctionFamily;
+import edu.uci.ics.hyracks.data.std.accessors.PointableBinaryHashFunctionFactory;
+import edu.uci.ics.hyracks.data.std.util.GrowableArray;
+
+/**
+ * This hash function factory is introduced to be able to hash heterogeneous list items.
+ * The item type tag is also included in the hash computation to distinguish the different
+ * types with the same raw bytes.
+ */
+public class ListItemBinaryHashFunctionFactory implements IBinaryHashFunctionFactory {
+
+    private static final long serialVersionUID = 1L;
+
+    public static final ListItemBinaryHashFunctionFactory INSTANCE = new ListItemBinaryHashFunctionFactory();
+
+    private ListItemBinaryHashFunctionFactory() {
+    }
+
+    @Override
+    public IBinaryHashFunction createBinaryHashFunction() {
+        return createBinaryHashFunction(ATypeTag.ANY, false);
+    }
+
+    public IBinaryHashFunction createBinaryHashFunction(final ATypeTag itemTypeTag, final boolean ignoreCase) {
+        return new IBinaryHashFunction() {
+
+            private IBinaryHashFunction lowerCaseStringHash = new PointableBinaryHashFunctionFactory(
+                    UTF8StringLowercasePointable.FACTORY).createBinaryHashFunction();
+            private IBinaryHashFunction genericBinaryHash = MurmurHash3BinaryHashFunctionFamily.INSTANCE
+                    .createBinaryHashFunction(0);
+            private GrowableArray taggedBytes = new GrowableArray();
+
+            @Override
+            public int hash(byte[] bytes, int offset, int length) {
+                ATypeTag tag = itemTypeTag;
+                int skip = 0;
+                if (itemTypeTag == ATypeTag.ANY) {
+                    tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(bytes[offset]);
+                    skip = 1;
+                }
+                switch (tag) {
+                    case STRING: {
+                        if (ignoreCase) {
+                            return lowerCaseStringHash.hash(bytes, offset + skip, length - skip);
+                        }
+                    }
+                    default: {
+                        if (itemTypeTag != ATypeTag.ANY) {
+                            // add the itemTypeTag in front of the data
+                            try {
+                                resetTaggedBytes(bytes, offset, length);
+                                return genericBinaryHash.hash(taggedBytes.getByteArray(), 0, length + 1);
+                            } catch (IOException e) {
+                                throw new RuntimeException(e);
+                            }
+                        } else {
+                            return genericBinaryHash.hash(bytes, offset, length);
+                        }
+                    }
+                }
+            }
+
+            private void resetTaggedBytes(byte[] data, int offset, int length) throws IOException {
+                taggedBytes.reset();
+                taggedBytes.getDataOutput().writeByte(itemTypeTag.serialize());
+                taggedBytes.getDataOutput().write(data, offset, length);
+            }
+        };
+    }
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixAppContextInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixAppContextInfo.java
similarity index 96%
rename from asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixAppContextInfo.java
rename to asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixAppContextInfo.java
index 06a1c1f..81100bf 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/AsterixAppContextInfo.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixAppContextInfo.java
@@ -12,7 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.common.api;
+package edu.uci.ics.asterix.om.util;
 
 import java.util.logging.Logger;
 
@@ -23,9 +23,9 @@
 import edu.uci.ics.asterix.common.config.AsterixStorageProperties;
 import edu.uci.ics.asterix.common.config.AsterixTransactionProperties;
 import edu.uci.ics.asterix.common.config.IAsterixPropertiesProvider;
-import edu.uci.ics.asterix.common.context.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.common.dataflow.IAsterixApplicationContextInfo;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.transaction.management.service.transaction.AsterixRuntimeComponentsProvider;
 import edu.uci.ics.hyracks.api.application.ICCApplicationContext;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManagerProvider;
 import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
@@ -57,7 +57,6 @@
         INSTANCE.metadataProperties = new AsterixMetadataProperties(propertiesAccessor);
         INSTANCE.storageProperties = new AsterixStorageProperties(propertiesAccessor);
         INSTANCE.txnProperties = new AsterixTransactionProperties(propertiesAccessor);
-
         Logger.getLogger("edu.uci.ics").setLevel(INSTANCE.externalProperties.getLogLevel());
     }
 
@@ -70,21 +69,11 @@
     }
 
     @Override
-    public IStorageManagerInterface getStorageManagerInterface() {
-        return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
-    }
-
-    @Override
     public ICCApplicationContext getCCApplicationContext() {
         return appCtx;
     }
 
     @Override
-    public IIndexLifecycleManagerProvider getIndexLifecycleManagerProvider() {
-        return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
-    }
-
-    @Override
     public AsterixStorageProperties getStorageProperties() {
         return storageProperties;
     }
@@ -108,4 +97,14 @@
     public AsterixExternalProperties getExternalProperties() {
         return externalProperties;
     }
+
+    @Override
+    public IIndexLifecycleManagerProvider getIndexLifecycleManagerProvider() {
+        return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
+    }
+
+    @Override
+    public IStorageManagerInterface getStorageManagerInterface() {
+        return AsterixRuntimeComponentsProvider.NOINDEX_PROVIDER;
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixClusterProperties.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixClusterProperties.java
new file mode 100644
index 0000000..bc2a6af
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixClusterProperties.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.om.util;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * A holder class for properties related to the Asterix cluster.
+ */
+
+public class AsterixClusterProperties {
+
+    private static final Logger LOGGER = Logger.getLogger(AsterixClusterProperties.class.getName());
+
+    private static final String IO_DEVICES = "iodevices";
+
+    public static final AsterixClusterProperties INSTANCE = new AsterixClusterProperties();
+
+    private Map<String, Map<String, String>> ncConfiguration = new HashMap<String, Map<String, String>>();
+
+    private AsterixClusterProperties() {
+    }
+
+    public enum State {
+        ACTIVE,
+        UNUSABLE
+    }
+
+    private State state = State.UNUSABLE;
+
+    public void removeNCConfiguration(String nodeId) {
+        state = State.UNUSABLE;
+        ncConfiguration.remove(nodeId);
+    }
+
+    public void addNCConfiguration(String nodeId, Map<String, String> configuration) {
+        ncConfiguration.put(nodeId, configuration);
+        if (ncConfiguration.keySet().size() == AsterixAppContextInfo.getInstance().getMetadataProperties()
+                .getNodeNames().size()) {
+            state = State.ACTIVE;
+        }
+        if (LOGGER.isLoggable(Level.INFO)) {
+            LOGGER.info(" Registering configuration parameters for node id" + nodeId);
+        }
+    }
+
+    /**
+     * Returns the number of IO devices configured for a Node Controller
+     * 
+     * @param nodeId
+     *            unique identifier of the Node Controller
+     * @return number of IO devices. -1 if the node id is not valid. A node id is not valid
+     *         if it does not correspond to the set of registered Node Controllers.
+     */
+    public int getNumberOfIODevices(String nodeId) {
+        Map<String, String> ncConfig = ncConfiguration.get(nodeId);
+        if (ncConfig == null) {
+            if (LOGGER.isLoggable(Level.WARNING)) {
+                LOGGER.warning("Configuration parameters for nodeId" + nodeId
+                        + " not found. The node has not joined yet or has left.");
+            }
+            return -1;
+        }
+        return ncConfig.get(IO_DEVICES).split(",").length;
+    }
+
+    public State getState() {
+        return state;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixRuntimeUtil.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixRuntimeUtil.java
index e280b2e..75fc5a7 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixRuntimeUtil.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/AsterixRuntimeUtil.java
@@ -23,46 +23,38 @@
 import java.util.Map;
 import java.util.Set;
 
-import edu.uci.ics.asterix.common.api.AsterixAppContextInfo;
-
 /**
  * Utility class for obtaining information on the set of Hyracks NodeController
  * processes that are running on a given host.
  */
 public class AsterixRuntimeUtil {
 
-	public static Set<String> getNodeControllersOnIP(String ipAddress)
-			throws Exception {
-		Map<String, Set<String>> nodeControllerInfo = getNodeControllerMap();
-		Set<String> nodeControllersAtLocation = nodeControllerInfo
-				.get(ipAddress);
-		return nodeControllersAtLocation;
-	}
+    public static Set<String> getNodeControllersOnIP(String ipAddress) throws Exception {
+        Map<String, Set<String>> nodeControllerInfo = getNodeControllerMap();
+        Set<String> nodeControllersAtLocation = nodeControllerInfo.get(ipAddress);
+        return nodeControllersAtLocation;
+    }
 
-	public static List<String> getAllNodeControllers() throws Exception {
-		Collection<Set<String>> nodeControllersCollection = getNodeControllerMap()
-				.values();
-		List<String> nodeControllers = new ArrayList<String>();
-		for (Set<String> ncCollection : nodeControllersCollection) {
-			nodeControllers.addAll(ncCollection);
-		}
-		return nodeControllers;
-	}
+    public static List<String> getAllNodeControllers() throws Exception {
+        Collection<Set<String>> nodeControllersCollection = getNodeControllerMap().values();
+        List<String> nodeControllers = new ArrayList<String>();
+        for (Set<String> ncCollection : nodeControllersCollection) {
+            nodeControllers.addAll(ncCollection);
+        }
+        return nodeControllers;
+    }
 
-	public static Map<String, Set<String>> getNodeControllerMap()
-			throws Exception {
-		Map<String, Set<String>> map = new HashMap<String, Set<String>>();
-		AsterixAppContextInfo.getInstance().getCCApplicationContext()
-				.getCCContext().getIPAddressNodeMap(map);
-		return map;
-	}
+    public static Map<String, Set<String>> getNodeControllerMap() throws Exception {
+        Map<String, Set<String>> map = new HashMap<String, Set<String>>();
+        AsterixAppContextInfo.getInstance().getCCApplicationContext().getCCContext().getIPAddressNodeMap(map);
+        return map;
+    }
 
-	public static String getIPAddress(String hostname)
-			throws UnknownHostException {
-		String address = InetAddress.getByName(hostname).getHostAddress();
-		if (address.equals("127.0.1.1")) {
-			address = "127.0.0.1";
-		}
-		return address;
-	}
+    public static String getIPAddress(String hostname) throws UnknownHostException {
+        String address = InetAddress.getByName(hostname).getHostAddress();
+        if (address.equals("127.0.1.1")) {
+            address = "127.0.0.1";
+        }
+        return address;
+    }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AbstractAsterixListIterator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AbstractAsterixListIterator.java
index efae5f9..269d363 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AbstractAsterixListIterator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AbstractAsterixListIterator.java
@@ -13,7 +13,10 @@
     protected byte[] data;
     protected int count = 0;
     protected int pos = -1;
-    protected int size = -1;
+    protected int nextPos = -1;
+    protected int itemLen = -1;
+    protected int numberOfItems = -1;
+    protected int listLength = -1;
     protected int startOff = -1;
     protected IBinaryComparator cmp;
 
@@ -27,12 +30,12 @@
 
     @Override
     public boolean hasNext() {
-        return count < size;
+        return count < numberOfItems;
     }
 
     @Override
     public int size() {
-        return size;
+        return numberOfItems;
     }
 
     @Override
@@ -45,10 +48,20 @@
         return pos;
     }
 
+    public int getItemLen() {
+        return itemLen;
+    }
+
     @Override
     public void next() {
         try {
-            pos = getItemOffset(data, startOff, ++count);
+            pos = nextPos;
+            ++count;
+            nextPos = startOff + listLength;
+            if (count + 1 < numberOfItems) {
+                nextPos = getItemOffset(data, startOff, count + 1);
+            }
+            itemLen = nextPos - pos;
         } catch (AsterixException e) {
             throw new AsterixRuntimeException(e);
         }
@@ -59,6 +72,11 @@
         count = 0;
         try {
             pos = getItemOffset(data, startOff, count);
+            nextPos = startOff + listLength;
+            if (count + 1 < numberOfItems) {
+                nextPos = getItemOffset(data, startOff, count + 1);
+            }
+            itemLen = nextPos - pos;
         } catch (AsterixException e) {
             throw new AsterixRuntimeException(e);
         }
@@ -67,7 +85,8 @@
     public void reset(byte[] data, int startOff) {
         this.data = data;
         this.startOff = startOff;
-        size = getNumberOfItems(data, startOff);
+        this.numberOfItems = getNumberOfItems(data, startOff);
+        this.listLength = getListLength(data, startOff);
         ATypeTag tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(data[startOff + 1]);
         switch (tag) {
             case INT32: {
@@ -102,4 +121,6 @@
     protected abstract int getItemOffset(byte[] serOrderedList, int offset, int itemIndex) throws AsterixException;
 
     protected abstract int getNumberOfItems(byte[] serOrderedList, int offset);
+
+    protected abstract int getListLength(byte[] serOrderedList, int offset);
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixOrderedListIterator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixOrderedListIterator.java
index d3714c1..fc92875 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixOrderedListIterator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixOrderedListIterator.java
@@ -14,4 +14,9 @@
     protected int getNumberOfItems(byte[] serOrderedList, int offset) {
         return AOrderedListSerializerDeserializer.getNumberOfItems(serOrderedList, offset);
     }
+
+    @Override
+    protected int getListLength(byte[] serOrderedList, int offset) {
+        return AOrderedListSerializerDeserializer.getOrderedListLength(serOrderedList, offset + 1);
+    }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixUnorderedListIterator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixUnorderedListIterator.java
index de7742b..5f01581 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixUnorderedListIterator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixUnorderedListIterator.java
@@ -14,4 +14,9 @@
     protected int getNumberOfItems(byte[] serOrderedList, int offset) {
         return AUnorderedListSerializerDeserializer.getNumberOfItems(serOrderedList, offset);
     }
+
+    @Override
+    protected int getListLength(byte[] serOrderedList, int offset) {
+        return AUnorderedListSerializerDeserializer.getUnorderedListLength(serOrderedList, offset + 1);
+    }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardCheckEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardCheckEvaluator.java
index ab73df2..b732f40 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardCheckEvaluator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardCheckEvaluator.java
@@ -62,8 +62,8 @@
             probeListCount++;
             byte[] buf = probeIter.getData();
             int off = probeIter.getPos();
-            int len = getItemLen(buf, off);
-            keyEntry.set(buf, off, len);            
+            int len = probeIter.getItemLen();
+            keyEntry.set(buf, off, len);
             BinaryEntry entry = hashMap.get(keyEntry);
             if (entry != null) {
                 // Increment second value.
@@ -94,7 +94,7 @@
         }
         return intersectionSize;
     }
-    
+
     @Override
     protected void writeResult(float jacc) throws IOException {
         listBuilder.reset(listType);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardEvaluator.java
index 9f5c9c8..391fb30 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardEvaluator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardEvaluator.java
@@ -4,8 +4,6 @@
 import java.io.IOException;
 import java.util.Arrays;
 
-import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
-import edu.uci.ics.asterix.formats.nontagged.AqlBinaryHashFunctionFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AFloat;
 import edu.uci.ics.asterix.om.base.AMutableFloat;
@@ -22,9 +20,10 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
-import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+import edu.uci.ics.asterix.dataflow.data.nontagged.comparators.ListItemBinaryComparatorFactory;
+import edu.uci.ics.asterix.dataflow.data.nontagged.hash.ListItemBinaryHashFunctionFactory;
 
 public class SimilarityJaccardEvaluator implements ICopyEvaluator {
 
@@ -58,7 +57,8 @@
     protected int firstStart = -1;
     protected int secondStart = -1;
     protected float jaccSim = 0.0f;
-    protected ATypeTag itemTypeTag;
+    protected ATypeTag firstItemTypeTag;
+    protected ATypeTag secondItemTypeTag;
 
     protected BinaryHashMap hashMap;
     protected BinaryEntry keyEntry = new BinaryEntry();
@@ -105,6 +105,9 @@
 
         firstTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[firstStart]);
         secondTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[secondStart]);
+
+        firstItemTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[firstStart + 1]);
+        secondItemTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[secondStart + 1]);
     }
 
     protected boolean prepareLists(byte[] bytes, int firstStart, int secondStart, ATypeTag argType)
@@ -116,17 +119,12 @@
         if (firstListIter.size() == 0 || secondListIter.size() == 0) {
             return false;
         }
-        if (firstTypeTag == ATypeTag.ANY || secondTypeTag == ATypeTag.ANY) {
-            throw new AlgebricksException("\n Jaccard can only be called on homogenous lists");
-        }
         // TODO: Check item types are compatible.
-        itemTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(bytes[firstStart + 1]);
         return true;
     }
 
     protected float computeResult(byte[] bytes, int firstStart, int secondStart, ATypeTag argType)
             throws AlgebricksException {
-        setHashMap(bytes, firstStart, secondStart);
         // We will subtract the intersection size later to get the real union size.
         int firstListSize = firstListIter.size();
         int secondListSize = secondListIter.size();
@@ -136,7 +134,10 @@
         AbstractAsterixListIterator probeList = (buildList == firstListIter) ? secondListIter : firstListIter;
         int buildListSize = (buildList == firstListIter) ? firstListSize : secondListSize;
         int probeListSize = (probeList == firstListIter) ? firstListSize : secondListSize;
+        ATypeTag buildItemTypeTag = (buildList == firstListIter) ? firstItemTypeTag : secondItemTypeTag;
+        ATypeTag probeItemTypeTag = (probeList == firstListIter) ? firstItemTypeTag : secondItemTypeTag;
 
+        setHashMap(bytes, buildItemTypeTag, probeItemTypeTag);
         buildHashMap(buildList);
         int intersectionSize = probeHashMap(probeList, buildListSize, probeListSize);
         // Special indicator for the "check" version of jaccard.
@@ -154,7 +155,7 @@
         while (buildIter.hasNext()) {
             byte[] buf = buildIter.getData();
             int off = buildIter.getPos();
-            int len = getItemLen(buf, off);
+            int len = buildIter.getItemLen();
             keyEntry.set(buf, off, len);
             BinaryEntry entry = hashMap.put(keyEntry, valEntry);
             if (entry != null) {
@@ -172,7 +173,7 @@
         while (probeIter.hasNext()) {
             byte[] buf = probeIter.getData();
             int off = probeIter.getPos();
-            int len = getItemLen(buf, off);
+            int len = probeIter.getItemLen();
             keyEntry.set(buf, off, len);
             BinaryEntry entry = hashMap.get(keyEntry);
             if (entry != null) {
@@ -195,69 +196,19 @@
         return intersectionSize;
     }
 
-    protected void setHashMap(byte[] bytes, int firstStart, int secondStart) {
+    protected void setHashMap(byte[] bytes, ATypeTag buildItemTypeTag, ATypeTag probeItemTypeTag) {
         if (hashMap != null) {
             hashMap.clear();
             return;
         }
-        IBinaryHashFunction hashFunc = null;
-        IBinaryComparator cmp = null;
-        switch (itemTypeTag) {
-            case INT32: {
-                hashFunc = AqlBinaryHashFunctionFactoryProvider.INTEGER_POINTABLE_INSTANCE.createBinaryHashFunction();
-                cmp = AqlBinaryComparatorFactoryProvider.INTEGER_POINTABLE_INSTANCE.createBinaryComparator();
-                break;
-            }
-            case FLOAT: {
-                hashFunc = AqlBinaryHashFunctionFactoryProvider.FLOAT_POINTABLE_INSTANCE.createBinaryHashFunction();
-                cmp = AqlBinaryComparatorFactoryProvider.FLOAT_POINTABLE_INSTANCE.createBinaryComparator();
-                break;
-            }
-            case DOUBLE: {
-                hashFunc = AqlBinaryHashFunctionFactoryProvider.DOUBLE_POINTABLE_INSTANCE.createBinaryHashFunction();
-                cmp = AqlBinaryComparatorFactoryProvider.DOUBLE_POINTABLE_INSTANCE.createBinaryComparator();
-                break;
-            }
-            case STRING: {
-                if (ignoreCase) {
-                    // Ignore case in comparisons and hashing.
-                    hashFunc = AqlBinaryHashFunctionFactoryProvider.UTF8STRING_LOWERCASE_POINTABLE_INSTANCE
-                            .createBinaryHashFunction();
-                    cmp = AqlBinaryComparatorFactoryProvider.UTF8STRING_LOWERCASE_POINTABLE_INSTANCE
-                            .createBinaryComparator();
-                } else {
-                    hashFunc = AqlBinaryHashFunctionFactoryProvider.UTF8STRING_POINTABLE_INSTANCE
-                            .createBinaryHashFunction();
-                    cmp = AqlBinaryComparatorFactoryProvider.UTF8STRING_POINTABLE_INSTANCE.createBinaryComparator();
-                }
-                break;
-            }
-            default: {
-                break;
-            }
-        }
-        hashMap = new BinaryHashMap(TABLE_SIZE, TABLE_FRAME_SIZE, hashFunc, cmp);
-    }
 
-    protected int getItemLen(byte[] bytes, int itemOff) {
-        switch (itemTypeTag) {
-            case INT32: {
-                return 4;
-            }
-            case FLOAT: {
-                return 4;
-            }
-            case DOUBLE: {
-                return 8;
-            }
-            case STRING: {
-                // 2 bytes for the UTF8 len, plus the string data.
-                return 2 + UTF8StringPointable.getUTFLength(bytes, itemOff);
-            }
-            default: {
-                return -1;
-            }
-        }
+        IBinaryHashFunction putHashFunc = ListItemBinaryHashFunctionFactory.INSTANCE.createBinaryHashFunction(
+                buildItemTypeTag, ignoreCase);
+        IBinaryHashFunction getHashFunc = ListItemBinaryHashFunctionFactory.INSTANCE.createBinaryHashFunction(
+                probeItemTypeTag, ignoreCase);
+        IBinaryComparator cmp = ListItemBinaryComparatorFactory.INSTANCE.createBinaryComparator(buildItemTypeTag,
+                probeItemTypeTag, ignoreCase);
+        hashMap = new BinaryHashMap(TABLE_SIZE, TABLE_FRAME_SIZE, putHashFunc, getHashFunc, cmp);
     }
 
     protected boolean checkArgTypes(ATypeTag typeTag1, ATypeTag typeTag2) throws AlgebricksException {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/BinaryHashMap.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/BinaryHashMap.java
index 240f8c7..6367996 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/BinaryHashMap.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/BinaryHashMap.java
@@ -20,150 +20,154 @@
  * Intended to work with binary data and be able to map arbitrary key types to
  * arbitrary value types, given that they have implementations of
  * IBinaryHashFunction and IBinaryComparator.
- * 
  * Uses 2 bytes each to indicate the length of the key and the value.
  * Uses 8 byte pointers for the linked list (4 bytes frame index, 4 bytes frame offset).
- * 
  * This class is NOT thread safe.
- * 
  */
 public class BinaryHashMap {
-	// Special value to indicate an empty "bucket" in the header array.
-	private static final long NULL_PTR = -1;
-	private static final int PTR_SIZE = 8;
-	private static final int SLOT_SIZE = 2;
-	private static final int ENTRY_HEADER_SIZE = PTR_SIZE + 2 * SLOT_SIZE;
-	private final IBinaryHashFunction hashFunc;
-	private final IBinaryComparator cmp;
-	private final BinaryEntry returnValue = new BinaryEntry();
-	
-	private final long[] listHeads;
-	private final int frameSize;
-	private final List<ByteBuffer> frames = new ArrayList<ByteBuffer>();
-	private int currFrameIndex;
-	private int nextOff;
-	private int size;
-	
-	// Can be used for key or value.
-	public static class BinaryEntry {
-		public byte[] buf;
-		public int off;
-		public int len;
-		
-		public void set(byte[] buf, int off, int len) {
-			this.buf = buf;
-			this.off = off;
-			this.len = len;
-		}
-		
-		// Inefficient. Just for debugging.
-		@SuppressWarnings("rawtypes")
-		public String print(ISerializerDeserializer serde) throws HyracksDataException {
-			ByteArrayInputStream inStream = new ByteArrayInputStream(buf, off, len);
+    // Special value to indicate an empty "bucket" in the header array.
+    private static final long NULL_PTR = -1;
+    private static final int PTR_SIZE = 8;
+    private static final int SLOT_SIZE = 2;
+    private static final int ENTRY_HEADER_SIZE = PTR_SIZE + 2 * SLOT_SIZE;
+    private final IBinaryHashFunction putHashFunc;
+    private final IBinaryHashFunction getHashFunc;
+    private final IBinaryComparator cmp;
+    private final BinaryEntry returnValue = new BinaryEntry();
+
+    private final long[] listHeads;
+    private final int frameSize;
+    private final List<ByteBuffer> frames = new ArrayList<ByteBuffer>();
+    private int currFrameIndex;
+    private int nextOff;
+    private int size;
+
+    // Can be used for key or value.
+    public static class BinaryEntry {
+        public byte[] buf;
+        public int off;
+        public int len;
+
+        public void set(byte[] buf, int off, int len) {
+            this.buf = buf;
+            this.off = off;
+            this.len = len;
+        }
+
+        // Inefficient. Just for debugging.
+        @SuppressWarnings("rawtypes")
+        public String print(ISerializerDeserializer serde) throws HyracksDataException {
+            ByteArrayInputStream inStream = new ByteArrayInputStream(buf, off, len);
             DataInput dataIn = new DataInputStream(inStream);
             return serde.deserialize(dataIn).toString();
-		}
-	}
-	
-	public BinaryHashMap(int tableSize, int frameSize, IBinaryHashFunction hashFunc, IBinaryComparator cmp) {
-		listHeads = new long[tableSize];
-		this.frameSize = frameSize;		
-		this.hashFunc = hashFunc;
-		this.cmp = cmp;
-		frames.add(ByteBuffer.allocate(frameSize));
-		clear();
-	}
-	
-	/**
-	 * Inserts key, value into the hash map. If key already exists, returns
-	 * existing entry. Otherwise, returns null.
-	 * 
-	 * @param key
-	 * @param value
-	 * @return
-	 */
-	public BinaryEntry put(BinaryEntry key, BinaryEntry value) {
-		return getPutInternal(key, value, true);
-	}
-	
-	/**
-	 * Retrieves value for given key. Returns null if key doesn't exist.
-	 * 
-	 * @param key
-	 * @param value
-	 * @return
-	 */
-	public BinaryEntry get(BinaryEntry key) {
-		return getPutInternal(key, null, false);
-	}
-	
-	private BinaryEntry getPutInternal(BinaryEntry key, BinaryEntry value, boolean put) {
-		int bucket = Math.abs(hashFunc.hash(key.buf, key.off, key.len) % listHeads.length);
-		long headPtr = listHeads[bucket];
-		if (headPtr == NULL_PTR) {
-			// Key definitely doesn't exist yet.
-			if (put) {
-				listHeads[bucket] = appendEntry(key, value);
-			}
-			return null;
-		}
-		// Follow the chain until we found an entry matching the given key.
-		int frameOff;
-		ByteBuffer frame;
-		do {				
-			int frameIndex = getFrameIndex(headPtr);
-			frameOff = getFrameOffset(headPtr);
-			frame = frames.get(frameIndex);
-			int entryKeyOff = frameOff + ENTRY_HEADER_SIZE;
-			int entryKeyLen = frame.getShort(frameOff);
-			if (cmp.compare(frame.array(), entryKeyOff, entryKeyLen, key.buf,
-					key.off, key.len) == 0) {
-				// Key found, set values and return.
-				int entryValOff = frameOff + ENTRY_HEADER_SIZE + entryKeyLen;
-				int entryValLen = frame.getShort(frameOff + SLOT_SIZE);
-				returnValue.set(frame.array(), entryValOff, entryValLen);
-				return returnValue;
-			}
-			headPtr = frame.getLong(frameOff + 2 * SLOT_SIZE);
-		} while (headPtr != NULL_PTR);
-		// We've followed the chain to its end, and didn't find the key.
-		if (put) {
-			// Append the new entry, and set a pointer to it in the last entry we've checked.
-			long newPtr = appendEntry(key, value);
-			frame.putLong(frameOff + 2 * SLOT_SIZE, newPtr);
-		}
-		return null;
-	}
-	
-	public long appendEntry(BinaryEntry key, BinaryEntry value) {
-		ByteBuffer frame = frames.get(currFrameIndex);
-		int requiredSpace = key.len + value.len + ENTRY_HEADER_SIZE;
-		if (nextOff + requiredSpace >= frameSize) {
-			// Entry doesn't fit on frame, allocate a new one.
-			if (requiredSpace > frameSize) {
-				throw new IllegalStateException("Key and value greater than framesize.");
-			}
-			frames.add(ByteBuffer.allocate(frameSize));
-			currFrameIndex++;
-			nextOff = 0;
-			frame = frames.get(currFrameIndex);
-		}
-		writeEntryHeader(frame, nextOff, key.len, value.len, NULL_PTR);
-		System.arraycopy(key.buf, key.off, frame.array(), nextOff + ENTRY_HEADER_SIZE, key.len);
-		System.arraycopy(value.buf, value.off, frame.array(), nextOff + ENTRY_HEADER_SIZE + key.len, value.len);
-		long entryPtr = getEntryPtr(currFrameIndex, nextOff);
-		nextOff += requiredSpace;
-		size++;
-		return entryPtr;
-	}
-	
-	private void writeEntryHeader(ByteBuffer frame, int targetOff, int keyLen, int valLen, long ptr) {
-		frame.putShort(targetOff, (short) keyLen);
-		frame.putShort(targetOff + SLOT_SIZE, (short) valLen);
-		frame.putLong(targetOff + 2 * SLOT_SIZE, ptr);
-	}
+        }
+    }
 
-	private long getEntryPtr(int frameIndex, int frameOff) {
+    public BinaryHashMap(int tableSize, int frameSize, IBinaryHashFunction putHashFunc,
+            IBinaryHashFunction getHashFunc, IBinaryComparator cmp) {
+        listHeads = new long[tableSize];
+        this.frameSize = frameSize;
+        this.putHashFunc = putHashFunc;
+        this.getHashFunc = getHashFunc;
+        this.cmp = cmp;
+        frames.add(ByteBuffer.allocate(frameSize));
+        clear();
+    }
+
+    /**
+     * Inserts key, value into the hash map. If key already exists, returns
+     * existing entry. Otherwise, returns null.
+     * 
+     * @param key
+     * @param value
+     * @return
+     */
+    public BinaryEntry put(BinaryEntry key, BinaryEntry value) {
+        return getPutInternal(key, value, true);
+    }
+
+    /**
+     * Retrieves value for given key. Returns null if key doesn't exist.
+     * 
+     * @param key
+     * @param value
+     * @return
+     */
+    public BinaryEntry get(BinaryEntry key) {
+        return getPutInternal(key, null, false);
+    }
+
+    private BinaryEntry getPutInternal(BinaryEntry key, BinaryEntry value, boolean put) {
+        int bucket;
+        if (put) {
+            bucket = Math.abs(putHashFunc.hash(key.buf, key.off, key.len) % listHeads.length);
+        } else {
+            bucket = Math.abs(getHashFunc.hash(key.buf, key.off, key.len) % listHeads.length);
+        }
+        long headPtr = listHeads[bucket];
+        if (headPtr == NULL_PTR) {
+            // Key definitely doesn't exist yet.
+            if (put) {
+                listHeads[bucket] = appendEntry(key, value);
+            }
+            return null;
+        }
+        // Follow the chain until we found an entry matching the given key.
+        int frameOff;
+        ByteBuffer frame;
+        do {
+            int frameIndex = getFrameIndex(headPtr);
+            frameOff = getFrameOffset(headPtr);
+            frame = frames.get(frameIndex);
+            int entryKeyOff = frameOff + ENTRY_HEADER_SIZE;
+            int entryKeyLen = frame.getShort(frameOff);
+            if (cmp.compare(frame.array(), entryKeyOff, entryKeyLen, key.buf, key.off, key.len) == 0) {
+                // Key found, set values and return.
+                int entryValOff = frameOff + ENTRY_HEADER_SIZE + entryKeyLen;
+                int entryValLen = frame.getShort(frameOff + SLOT_SIZE);
+                returnValue.set(frame.array(), entryValOff, entryValLen);
+                return returnValue;
+            }
+            headPtr = frame.getLong(frameOff + 2 * SLOT_SIZE);
+        } while (headPtr != NULL_PTR);
+        // We've followed the chain to its end, and didn't find the key.
+        if (put) {
+            // Append the new entry, and set a pointer to it in the last entry we've checked.
+            long newPtr = appendEntry(key, value);
+            frame.putLong(frameOff + 2 * SLOT_SIZE, newPtr);
+        }
+        return null;
+    }
+
+    public long appendEntry(BinaryEntry key, BinaryEntry value) {
+        ByteBuffer frame = frames.get(currFrameIndex);
+        int requiredSpace = key.len + value.len + ENTRY_HEADER_SIZE;
+        if (nextOff + requiredSpace >= frameSize) {
+            // Entry doesn't fit on frame, allocate a new one.
+            if (requiredSpace > frameSize) {
+                throw new IllegalStateException("Key and value greater than framesize.");
+            }
+            frames.add(ByteBuffer.allocate(frameSize));
+            currFrameIndex++;
+            nextOff = 0;
+            frame = frames.get(currFrameIndex);
+        }
+        writeEntryHeader(frame, nextOff, key.len, value.len, NULL_PTR);
+        System.arraycopy(key.buf, key.off, frame.array(), nextOff + ENTRY_HEADER_SIZE, key.len);
+        System.arraycopy(value.buf, value.off, frame.array(), nextOff + ENTRY_HEADER_SIZE + key.len, value.len);
+        long entryPtr = getEntryPtr(currFrameIndex, nextOff);
+        nextOff += requiredSpace;
+        size++;
+        return entryPtr;
+    }
+
+    private void writeEntryHeader(ByteBuffer frame, int targetOff, int keyLen, int valLen, long ptr) {
+        frame.putShort(targetOff, (short) keyLen);
+        frame.putShort(targetOff + SLOT_SIZE, (short) valLen);
+        frame.putLong(targetOff + 2 * SLOT_SIZE, ptr);
+    }
+
+    private long getEntryPtr(int frameIndex, int frameOff) {
         return (((long) frameIndex) << 32) + frameOff;
     }
 
@@ -175,93 +179,94 @@
         return (int) (ptr & 0xffffffff);
     }
 
-	public int size() {
-		return size;
-	}
+    public int size() {
+        return size;
+    }
 
-	public boolean isEmpty() {
-		return size > 0;
-	}
+    public boolean isEmpty() {
+        return size > 0;
+    }
 
-	public void clear() {
-		// Initialize all entries to point to nothing.
-		Arrays.fill(listHeads, NULL_PTR);
-		currFrameIndex = 0;
-		nextOff = 0;
-		size = 0;
-	}
-	
-	public Iterator<Pair<BinaryEntry, BinaryEntry>> iterator() {
-		return new BinaryHashMapIterator();
-	}
-	
-	public class BinaryHashMapIterator implements Iterator<Pair<BinaryEntry, BinaryEntry> > {
-		private final Pair<BinaryEntry, BinaryEntry> val = new Pair<BinaryEntry, BinaryEntry>(new BinaryEntry(), new BinaryEntry());
-		private int listHeadIndex;
-		private ByteBuffer frame;
-		private int frameIndex;
-		private int frameOff;
-		
-		public BinaryHashMapIterator() {
-			listHeadIndex = 0;
-			frame = null;
-			frameIndex = -1;
-			frameOff = -1;
-		}
-		
-		@Override
-		public boolean hasNext() {
-			if (frame != null) {
-				long nextPtr = frame.getLong(frameOff + 2 * SLOT_SIZE);
-				if (nextPtr == NULL_PTR) {
-					// End of current list.
-					listHeadIndex++;
-					return nextListHead();
-				} else {
-					// Follow pointer.
-					setValue(nextPtr);
-					return true;
-				}
-			}
-			return nextListHead();
-		}
+    public void clear() {
+        // Initialize all entries to point to nothing.
+        Arrays.fill(listHeads, NULL_PTR);
+        currFrameIndex = 0;
+        nextOff = 0;
+        size = 0;
+    }
 
-		private boolean nextListHead() {
-			// Position to first non-null list-head pointer.
-			while(listHeadIndex < listHeads.length && listHeads[listHeadIndex] == NULL_PTR) {
-				listHeadIndex++;
-			}
-			if (listHeadIndex < listHeads.length) {
-				// Positioned to first non-null list head.
-				setValue(listHeads[listHeadIndex]);
-				return true;
-			} else {
-				// No more lists.
-				frame = null;
-				return false;
-			}
-		}
-		
-		private void setValue(long ptr) {
-			frameIndex = getFrameIndex(ptr);
-			frameOff = getFrameOffset(ptr);
-			frame = frames.get(frameIndex);
-			int entryKeyOff = frameOff + ENTRY_HEADER_SIZE;
-			int entryKeyLen = frame.getShort(frameOff);
-			int entryValOff = frameOff + ENTRY_HEADER_SIZE + entryKeyLen;
-			int entryValLen = frame.getShort(frameOff + SLOT_SIZE);
-			val.first.set(frame.array(), entryKeyOff, entryKeyLen);
-			val.second.set(frame.array(), entryValOff, entryValLen);
-		}
-		
-		@Override
-		public Pair<BinaryEntry, BinaryEntry> next() {
-			return val;
-		}
+    public Iterator<Pair<BinaryEntry, BinaryEntry>> iterator() {
+        return new BinaryHashMapIterator();
+    }
 
-		@Override
-		public void remove() {
-			throw new UnsupportedOperationException("Remove not implemented");
-		}
-	}
+    public class BinaryHashMapIterator implements Iterator<Pair<BinaryEntry, BinaryEntry>> {
+        private final Pair<BinaryEntry, BinaryEntry> val = new Pair<BinaryEntry, BinaryEntry>(new BinaryEntry(),
+                new BinaryEntry());
+        private int listHeadIndex;
+        private ByteBuffer frame;
+        private int frameIndex;
+        private int frameOff;
+
+        public BinaryHashMapIterator() {
+            listHeadIndex = 0;
+            frame = null;
+            frameIndex = -1;
+            frameOff = -1;
+        }
+
+        @Override
+        public boolean hasNext() {
+            if (frame != null) {
+                long nextPtr = frame.getLong(frameOff + 2 * SLOT_SIZE);
+                if (nextPtr == NULL_PTR) {
+                    // End of current list.
+                    listHeadIndex++;
+                    return nextListHead();
+                } else {
+                    // Follow pointer.
+                    setValue(nextPtr);
+                    return true;
+                }
+            }
+            return nextListHead();
+        }
+
+        private boolean nextListHead() {
+            // Position to first non-null list-head pointer.
+            while (listHeadIndex < listHeads.length && listHeads[listHeadIndex] == NULL_PTR) {
+                listHeadIndex++;
+            }
+            if (listHeadIndex < listHeads.length) {
+                // Positioned to first non-null list head.
+                setValue(listHeads[listHeadIndex]);
+                return true;
+            } else {
+                // No more lists.
+                frame = null;
+                return false;
+            }
+        }
+
+        private void setValue(long ptr) {
+            frameIndex = getFrameIndex(ptr);
+            frameOff = getFrameOffset(ptr);
+            frame = frames.get(frameIndex);
+            int entryKeyOff = frameOff + ENTRY_HEADER_SIZE;
+            int entryKeyLen = frame.getShort(frameOff);
+            int entryValOff = frameOff + ENTRY_HEADER_SIZE + entryKeyLen;
+            int entryValLen = frame.getShort(frameOff + SLOT_SIZE);
+            val.first.set(frame.array(), entryKeyOff, entryKeyLen);
+            val.second.set(frame.array(), entryValOff, entryValLen);
+        }
+
+        @Override
+        public Pair<BinaryEntry, BinaryEntry> next() {
+            return val;
+        }
+
+        @Override
+        public void remove() {
+            throw new UnsupportedOperationException("Remove not implemented");
+        }
+    }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericCaretDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericCaretDescriptor.java
new file mode 100644
index 0000000..208c454
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericCaretDescriptor.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.functions;
+
+import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+public class NumericCaretDescriptor extends AbstractNumericArithmeticEval {
+
+    private static final long serialVersionUID = 1L;
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new NumericCaretDescriptor();
+        }
+    };
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.AbstractNumericArithmeticEval#evaluateInteger(long, long)
+     */
+    @Override
+    protected long evaluateInteger(long lhs, long rhs) throws HyracksDataException {
+        double result = Math.pow(lhs, rhs);
+        if (result > Long.MAX_VALUE) {
+            throw new ArithmeticException("Overflow of caret operation: " + lhs + " ^ " + rhs);
+        }
+        if (result < Long.MIN_VALUE) {
+            throw new ArithmeticException("Underflow of caret operation: " + lhs + " ^ " + rhs);
+        }
+        return (long) result;
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.runtime.evaluators.functions.AbstractNumericArithmeticEval#evaluateDouble(double, double)
+     */
+    @Override
+    protected double evaluateDouble(double lhs, double rhs) throws HyracksDataException {
+        return Math.pow(lhs, rhs);
+    }
+
+    /* (non-Javadoc)
+     * @see edu.uci.ics.asterix.om.functions.AbstractFunctionDescriptor#getIdentifier()
+     */
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return AsterixBuiltinFunctions.CARET;
+    }
+
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
index 2c81b7c..af647e9 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
@@ -149,6 +149,7 @@
 import edu.uci.ics.asterix.runtime.evaluators.functions.NotNullDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NumericAbsDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NumericAddDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.functions.NumericCaretDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NumericCeilingDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NumericDivideDescriptor;
 import edu.uci.ics.asterix.runtime.evaluators.functions.NumericFloorDescriptor;
@@ -347,6 +348,7 @@
         temp.add(NumericMultiplyDescriptor.FACTORY);
         temp.add(NumericSubtractDescriptor.FACTORY);
         temp.add(NumericModuloDescriptor.FACTORY);
+        temp.add(NumericCaretDescriptor.FACTORY);
         temp.add(IsNullDescriptor.FACTORY);
         temp.add(NotDescriptor.FACTORY);
         temp.add(LenDescriptor.FACTORY);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/job/listener/JobEventListenerFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/job/listener/JobEventListenerFactory.java
index 45e19c6..f0e8ec5 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/job/listener/JobEventListenerFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/job/listener/JobEventListenerFactory.java
@@ -1,12 +1,12 @@
 package edu.uci.ics.asterix.runtime.job.listener;
 
-import edu.uci.ics.asterix.common.context.AsterixAppRuntimeContext;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext.TransactionType;
+import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext.TransactionType;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.hyracks.api.context.IHyracksJobletContext;
 import edu.uci.ics.hyracks.api.job.IJobletEventListener;
 import edu.uci.ics.hyracks.api.job.IJobletEventListenerFactory;
@@ -22,7 +22,7 @@
         this.jobId = jobId;
         this.transactionalWrite = transactionalWrite;
     }
-    
+
     public JobId getJobId() {
         return jobId;
     }
@@ -34,12 +34,13 @@
             @Override
             public void jobletFinish(JobStatus jobStatus) {
                 try {
-                    ITransactionManager txnManager = ((AsterixAppRuntimeContext) jobletContext.getApplicationContext()
+                    ITransactionManager txnManager = ((IAsterixAppRuntimeContext) jobletContext.getApplicationContext()
                             .getApplicationObject()).getTransactionSubsystem().getTransactionManager();
-                    TransactionContext txnContext = txnManager.getTransactionContext(jobId);
+                    ITransactionContext txnContext = txnManager.getTransactionContext(jobId);
                     txnContext.setTransactionType(transactionalWrite ? TransactionType.READ_WRITE
                             : TransactionType.READ);
-                    txnManager.completedTransaction(txnContext, new DatasetId(-1), -1, !(jobStatus == JobStatus.FAILURE));
+                    txnManager.completedTransaction(txnContext, new DatasetId(-1), -1,
+                            !(jobStatus == JobStatus.FAILURE));
                 } catch (ACIDException e) {
                     throw new Error(e);
                 }
@@ -48,7 +49,7 @@
             @Override
             public void jobletStart() {
                 try {
-                    ((AsterixAppRuntimeContext) jobletContext.getApplicationContext().getApplicationObject())
+                    ((IAsterixAppRuntimeContext) jobletContext.getApplicationContext().getApplicationObject())
                             .getTransactionSubsystem().getTransactionManager().getTransactionContext(jobId);
                 } catch (ACIDException e) {
                     throw new Error(e);
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/AdmDataGen.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/AdmDataGen.java
index 3d28851..6b177a7 100644
--- a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/AdmDataGen.java
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/AdmDataGen.java
@@ -36,6 +36,7 @@
 import edu.uci.ics.asterix.common.annotations.TypeDataGen;
 import edu.uci.ics.asterix.common.annotations.UndeclaredFieldsDataGen;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.om.types.ARecordType;
@@ -46,8 +47,7 @@
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeSignature;
 import edu.uci.ics.asterix.tools.translator.ADGenDmlTranslator;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.data.utils.WriteValueTools;
@@ -1000,4 +1000,4 @@
         }
     }
 
-}
+}
\ No newline at end of file
diff --git a/asterix-transactions/pom.xml b/asterix-transactions/pom.xml
index 7d951ce..d09ce8a 100644
--- a/asterix-transactions/pom.xml
+++ b/asterix-transactions/pom.xml
@@ -40,6 +40,13 @@
 			<groupId>edu.uci.ics.hyracks</groupId>
 			<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
 		</dependency>
+                <dependency>
+                        <groupId>edu.uci.ics.asterix</groupId>
+                        <artifactId>asterix-common</artifactId>
+                        <version>0.0.6-SNAPSHOT</version>
+                        <type>jar</type>
+                        <scope>compile</scope>
+                </dependency>
 	</dependencies>
 
 </project>
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/IndexOperationTracker.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/IndexOperationTracker.java
index 2016d08..9da0a8f 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/IndexOperationTracker.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/IndexOperationTracker.java
@@ -15,6 +15,7 @@
 
 package edu.uci.ics.asterix.transaction.management.opcallbacks;
 
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallback;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallback.java
index a78f2ff..dedc5df 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallback.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallback.java
@@ -15,9 +15,10 @@
 
 package edu.uci.ics.asterix.transaction.management.opcallbacks;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallback;
+import edu.uci.ics.asterix.common.transactions.ILockManager;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
@@ -30,7 +31,7 @@
         ISearchOperationCallback {
 
     public PrimaryIndexInstantSearchOperationCallback(int datasetId, int[] entityIdFields, ILockManager lockManager,
-            TransactionContext txnCtx) {
+            ITransactionContext txnCtx) {
         super(datasetId, entityIdFields, txnCtx, lockManager);
     }
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallbackFactory.java
index 3773950..3efd90b 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallbackFactory.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexInstantSearchOperationCallbackFactory.java
@@ -15,11 +15,12 @@
 
 package edu.uci.ics.asterix.transaction.management.opcallbacks;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.asterix.common.context.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallbackFactory;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
@@ -38,9 +39,9 @@
     @Override
     public ISearchOperationCallback createSearchOperationCallback(long resourceId, IHyracksTaskContext ctx)
             throws HyracksDataException {
-        TransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
+        ITransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
         try {
-            TransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
+            ITransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
             return new PrimaryIndexInstantSearchOperationCallback(datasetId, primaryKeyFields,
                     txnSubsystem.getLockManager(), txnCtx);
         } catch (ACIDException e) {
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallback.java
index 824a324..15ccde4 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallback.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallback.java
@@ -15,12 +15,14 @@
 
 package edu.uci.ics.asterix.transaction.management.opcallbacks;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallback;
+import edu.uci.ics.asterix.common.transactions.ILockManager;
+import edu.uci.ics.asterix.common.transactions.ILogger;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
 import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
@@ -37,11 +39,11 @@
     protected final long resourceId;
     protected final byte resourceType;
     protected final IndexOperation indexOp;
-    protected final TransactionSubsystem txnSubsystem;
+    protected final ITransactionSubsystem txnSubsystem;
 
     public PrimaryIndexModificationOperationCallback(int datasetId, int[] primaryKeyFields,
-            TransactionContext txnCtx, ILockManager lockManager,
-            TransactionSubsystem txnSubsystem, long resourceId, byte resourceType, IndexOperation indexOp) {
+            ITransactionContext txnCtx, ILockManager lockManager,
+            ITransactionSubsystem txnSubsystem, long resourceId, byte resourceType, IndexOperation indexOp) {
         super(datasetId, primaryKeyFields, txnCtx, lockManager);
         this.resourceId = resourceId;
         this.resourceType = resourceType;
@@ -61,7 +63,7 @@
 
     @Override
     public void found(ITupleReference before, ITupleReference after) throws HyracksDataException {
-        IndexLogger logger = txnSubsystem.getTreeLoggerRepository().getIndexLogger(resourceId, resourceType);
+        ILogger logger = txnSubsystem.getTreeLoggerRepository().getIndexLogger(resourceId, resourceType);
         int pkHash = computePrimaryKeyHashValue(after, primaryKeyFields);
         LSMBTreeTupleReference lsmBTreeTuple = (LSMBTreeTupleReference) before;
         IndexOperation oldOp = IndexOperation.INSERT;
@@ -72,7 +74,7 @@
             oldOp = IndexOperation.DELETE;
         }
         try {
-            logger.generateLogRecord(txnSubsystem, txnCtx, datasetId.getId(), pkHash, resourceId, indexOp, after,
+            ((IndexLogger)logger).generateLogRecord(txnSubsystem, txnCtx, datasetId.getId(), pkHash, resourceId, indexOp, after,
                     oldOp, before);
         } catch (ACIDException e) {
             throw new HyracksDataException(e);
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallbackFactory.java
index c75ab6f..038ecee 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallbackFactory.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexModificationOperationCallbackFactory.java
@@ -15,11 +15,13 @@
 
 package edu.uci.ics.asterix.transaction.management.opcallbacks;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.asterix.common.context.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallback;
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallbackFactory;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
@@ -47,7 +49,7 @@
     public IModificationOperationCallback createModificationOperationCallback(long resourceId, Object resource,
             IHyracksTaskContext ctx) throws HyracksDataException {
 
-        TransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
+        ITransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
         IIndexLifecycleManager indexLifeCycleManager = txnSubsystem.getAsterixAppRuntimeContextProvider()
                 .getIndexLifecycleManager();
         ILSMIndex index = (ILSMIndex) indexLifeCycleManager.getIndex(resourceId);
@@ -56,7 +58,7 @@
         }
 
         try {
-            TransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
+            ITransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
             IModificationOperationCallback modCallback = new PrimaryIndexModificationOperationCallback(datasetId,
                     primaryKeyFields, txnCtx, txnSubsystem.getLockManager(), txnSubsystem, resourceId, resourceType,
                     indexOp);
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallback.java
index 62ec3c9..eee33e9 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallback.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallback.java
@@ -15,9 +15,10 @@
 
 package edu.uci.ics.asterix.transaction.management.opcallbacks;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallback;
+import edu.uci.ics.asterix.common.transactions.ILockManager;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
@@ -29,7 +30,7 @@
 public class PrimaryIndexSearchOperationCallback extends AbstractOperationCallback implements ISearchOperationCallback {
 
     public PrimaryIndexSearchOperationCallback(int datasetId, int[] entityIdFields, ILockManager lockManager,
-            TransactionContext txnCtx) {
+            ITransactionContext txnCtx) {
         super(datasetId, entityIdFields, txnCtx, lockManager);
     }
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallbackFactory.java
index fc62b90..5d837b0 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallbackFactory.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/PrimaryIndexSearchOperationCallbackFactory.java
@@ -15,11 +15,12 @@
 
 package edu.uci.ics.asterix.transaction.management.opcallbacks;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.asterix.common.context.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallbackFactory;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
@@ -38,9 +39,9 @@
     @Override
     public ISearchOperationCallback createSearchOperationCallback(long resourceId, IHyracksTaskContext ctx)
             throws HyracksDataException {
-        TransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
+        ITransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
         try {
-            TransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
+            ITransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
             return new PrimaryIndexSearchOperationCallback(datasetId, primaryKeyFields, txnSubsystem.getLockManager(),
                     txnCtx);
         } catch (ACIDException e) {
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallback.java
index 5b55e9a..0e66b32 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallback.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallback.java
@@ -15,12 +15,14 @@
 
 package edu.uci.ics.asterix.transaction.management.opcallbacks;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallback;
+import edu.uci.ics.asterix.common.transactions.ILockManager;
+import edu.uci.ics.asterix.common.transactions.ILogger;
+import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
 import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
@@ -39,10 +41,10 @@
     protected final byte resourceType;
     protected final IndexOperation indexOp;
     protected final IndexOperation oldOp;
-    protected final TransactionSubsystem txnSubsystem;
+    protected final ITransactionSubsystem txnSubsystem;
 
     public SecondaryIndexModificationOperationCallback(int datasetId, int[] primaryKeyFields,
-            TransactionContext txnCtx, ILockManager lockManager, TransactionSubsystem txnSubsystem, long resourceId,
+            ITransactionContext txnCtx, ILockManager lockManager, ITransactionSubsystem txnSubsystem, long resourceId,
             byte resourceType, IndexOperation indexOp) {
         super(datasetId, primaryKeyFields, txnCtx, lockManager);
         this.resourceId = resourceId;
@@ -59,7 +61,7 @@
 
     @Override
     public void found(ITupleReference before, ITupleReference after) throws HyracksDataException {
-        IndexLogger logger = txnSubsystem.getTreeLoggerRepository().getIndexLogger(resourceId, resourceType);
+        ILogger logger = txnSubsystem.getTreeLoggerRepository().getIndexLogger(resourceId, resourceType);
         int pkHash = computePrimaryKeyHashValue(after, primaryKeyFields);
         try {
             IndexOperation effectiveOldOp;
@@ -75,7 +77,7 @@
             } else {
                 effectiveOldOp = oldOp;
             }
-            logger.generateLogRecord(txnSubsystem, txnCtx, datasetId.getId(), pkHash, resourceId, indexOp, after,
+            ((IndexLogger)logger).generateLogRecord(txnSubsystem, txnCtx, datasetId.getId(), pkHash, resourceId, indexOp, after,
                     effectiveOldOp, before);
         } catch (ACIDException e) {
             throw new HyracksDataException(e);
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java
index 672b434..68a09de 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java
@@ -15,11 +15,12 @@
 
 package edu.uci.ics.asterix.transaction.management.opcallbacks;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionSubsystemProvider;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.asterix.common.context.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallbackFactory;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
@@ -44,7 +45,7 @@
     public IModificationOperationCallback createModificationOperationCallback(long resourceId, Object resource,
             IHyracksTaskContext ctx) throws HyracksDataException {
 
-        TransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
+        ITransactionSubsystem txnSubsystem = txnSubsystemProvider.getTransactionSubsystem(ctx);
         IIndexLifecycleManager indexLifeCycleManager = txnSubsystem.getAsterixAppRuntimeContextProvider()
                 .getIndexLifecycleManager();
         ILSMIndex index = (ILSMIndex) indexLifeCycleManager.getIndex(resourceId);
@@ -53,7 +54,7 @@
         }
 
         try {
-            TransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
+            ITransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId);
             return new SecondaryIndexModificationOperationCallback(datasetId, primaryKeyFields, txnCtx,
                     txnSubsystem.getLockManager(), txnSubsystem, resourceId, resourceType, indexOp);
         } catch (ACIDException e) {
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallback.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallback.java
index 4c8a583..e6ce589 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallback.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexSearchOperationCallback.java
@@ -15,6 +15,7 @@
 
 package edu.uci.ics.asterix.transaction.management.opcallbacks;
 
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallback;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.storage.am.common.api.ISearchOperationCallback;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/ILocalResourceMetadata.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/ILocalResourceMetadata.java
index d2aa164..3b32dc2 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/ILocalResourceMetadata.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/ILocalResourceMetadata.java
@@ -2,7 +2,7 @@
 
 import java.io.Serializable;
 
-import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.common.transactions.IAsterixAppRuntimeContextProvider;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java
index 7ab0d10..c3f9747 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMBTreeLocalResourceMetadata.java
@@ -2,10 +2,11 @@
 
 import java.io.File;
 
-import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.common.transactions.IAsterixAppRuntimeContextProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.frames.LIFOMetaDataFrameFactory;
@@ -27,14 +28,27 @@
     private final int[] bloomFilterKeyFields;
     private final int memPageSize;
     private final int memNumPages;
+    private FileSplit[] fileSplits;
+    private int ioDeviceID;
 
     public LSMBTreeLocalResourceMetadata(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] cmpFactories,
-            int[] bloomFilterKeyFields, boolean isPrimary, int memPageSize, int memNumPages) {
+            int[] bloomFilterKeyFields, boolean isPrimary, int memPageSize, int memNumPages, FileSplit[] fileSplits) {
         this.typeTraits = typeTraits;
         this.cmpFactories = cmpFactories;
         this.bloomFilterKeyFields = bloomFilterKeyFields;
         this.memPageSize = memPageSize;
         this.memNumPages = memNumPages;
+        this.fileSplits = fileSplits;
+    }
+
+    public LSMBTreeLocalResourceMetadata(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] cmpFactories,
+            int[] bloomFilterKeyFields, boolean isPrimary, int memPageSize, int memNumPages, int ioDeviceID) {
+        this.typeTraits = typeTraits;
+        this.cmpFactories = cmpFactories;
+        this.bloomFilterKeyFields = bloomFilterKeyFields;
+        this.memPageSize = memPageSize;
+        this.memNumPages = memNumPages;
+        this.ioDeviceID = ioDeviceID;
     }
 
     @Override
@@ -45,13 +59,13 @@
                 memNumPages, new TransientFileMapManager());
         ITreeIndexMetaDataFrameFactory metaDataFrameFactory = new LIFOMetaDataFrameFactory();
         IInMemoryFreePageManager memFreePageManager = new InMemoryFreePageManager(memNumPages, metaDataFrameFactory);
-        LSMBTree lsmBTree = LSMBTreeUtils.createLSMTree(memBufferCache, memFreePageManager,
-                runtimeContextProvider.getIOManager(), file, runtimeContextProvider.getBufferCache(),
-                runtimeContextProvider.getFileMapManager(), typeTraits, cmpFactories, bloomFilterKeyFields,
-                runtimeContextProvider.getBloomFilterFalsePositiveRate(), runtimeContextProvider.getLSMMergePolicy(),
-                runtimeContextProvider.getLSMBTreeOperationTrackerFactory(),
-                runtimeContextProvider.getLSMIOScheduler(),
-                runtimeContextProvider.getLSMBTreeIOOperationCallbackProvider(), partition);
+        LSMBTree lsmBTree = LSMBTreeUtils.createLSMTree(memBufferCache, memFreePageManager, runtimeContextProvider
+                .getIOManager(), file, runtimeContextProvider.getBufferCache(), runtimeContextProvider
+                .getFileMapManager(), typeTraits, cmpFactories, bloomFilterKeyFields, runtimeContextProvider
+                .getBloomFilterFalsePositiveRate(), runtimeContextProvider.getLSMMergePolicy(), runtimeContextProvider
+                .getLSMBTreeOperationTrackerFactory(), runtimeContextProvider.getLSMIOScheduler(),
+                runtimeContextProvider.getLSMBTreeIOOperationCallbackProvider(), fileSplits == null ? ioDeviceID
+                        : fileSplits[partition].getIODeviceId());
         return lsmBTree;
     }
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMInvertedIndexLocalResourceMetadata.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMInvertedIndexLocalResourceMetadata.java
index 3bcb747..89a32c5 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMInvertedIndexLocalResourceMetadata.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMInvertedIndexLocalResourceMetadata.java
@@ -1,9 +1,10 @@
 package edu.uci.ics.asterix.transaction.management.resource;
 
-import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.common.transactions.IAsterixAppRuntimeContextProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.IndexException;
@@ -28,11 +29,12 @@
     private final int memPageSize;
     private final int memNumPages;
     private final boolean isPartitioned;
+    private final FileSplit[] fileSplits;
 
     public LSMInvertedIndexLocalResourceMetadata(ITypeTraits[] invListTypeTraits,
             IBinaryComparatorFactory[] invListCmpFactories, ITypeTraits[] tokenTypeTraits,
             IBinaryComparatorFactory[] tokenCmpFactories, IBinaryTokenizerFactory tokenizerFactory, int memPageSize,
-            int memNumPages, boolean isPartitioned) {
+            int memNumPages, boolean isPartitioned, FileSplit[] fileSplits) {
         this.invListTypeTraits = invListTypeTraits;
         this.invListCmpFactories = invListCmpFactories;
         this.tokenTypeTraits = tokenTypeTraits;
@@ -41,6 +43,7 @@
         this.memPageSize = memPageSize;
         this.memNumPages = memNumPages;
         this.isPartitioned = isPartitioned;
+        this.fileSplits = fileSplits;
     }
 
     @Override
@@ -62,7 +65,8 @@
                         runtimeContextProvider.getLSMMergePolicy(),
                         runtimeContextProvider.getLSMInvertedIndexOperationTrackerFactory(),
                         runtimeContextProvider.getLSMIOScheduler(),
-                        runtimeContextProvider.getLSMInvertedIndexIOOperationCallbackProvider(), partition);
+                        runtimeContextProvider.getLSMInvertedIndexIOOperationCallbackProvider(),
+                        fileSplits[partition].getIODeviceId());
             } else {
                 return InvertedIndexUtils.createLSMInvertedIndex(memBufferCache, memFreePageManager,
                         runtimeContextProvider.getFileMapManager(), invListTypeTraits, invListCmpFactories,
@@ -72,7 +76,8 @@
                         runtimeContextProvider.getLSMMergePolicy(),
                         runtimeContextProvider.getLSMInvertedIndexOperationTrackerFactory(),
                         runtimeContextProvider.getLSMIOScheduler(),
-                        runtimeContextProvider.getLSMInvertedIndexIOOperationCallbackProvider(), partition);
+                        runtimeContextProvider.getLSMInvertedIndexIOOperationCallbackProvider(),
+                        fileSplits[partition].getIODeviceId());
             }
         } catch (IndexException e) {
             throw new HyracksDataException(e);
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMRTreeLocalResourceMetadata.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMRTreeLocalResourceMetadata.java
index ff26c54..2506697 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMRTreeLocalResourceMetadata.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/LSMRTreeLocalResourceMetadata.java
@@ -2,12 +2,13 @@
 
 import java.io.File;
 
-import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.common.transactions.IAsterixAppRuntimeContextProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ILinearizeComparatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.FileReference;
+import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 import edu.uci.ics.hyracks.storage.am.common.api.IInMemoryFreePageManager;
 import edu.uci.ics.hyracks.storage.am.common.api.IPrimitiveValueProviderFactory;
 import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexMetaDataFrameFactory;
@@ -33,11 +34,12 @@
     private final ILinearizeComparatorFactory linearizeCmpFactory;
     private final int memPageSize;
     private final int memNumPages;
+    private final FileSplit[] fileSplits;
 
     public LSMRTreeLocalResourceMetadata(ITypeTraits[] typeTraits, IBinaryComparatorFactory[] rtreeCmpFactories,
             IBinaryComparatorFactory[] btreeCmpFactories, IPrimitiveValueProviderFactory[] valueProviderFactories,
             RTreePolicyType rtreePolicyType, ILinearizeComparatorFactory linearizeCmpFactory, int memPageSize,
-            int memNumPages) {
+            int memNumPages, FileSplit[] fileSplits) {
         this.typeTraits = typeTraits;
         this.rtreeCmpFactories = rtreeCmpFactories;
         this.btreeCmpFactories = btreeCmpFactories;
@@ -46,6 +48,7 @@
         this.linearizeCmpFactory = linearizeCmpFactory;
         this.memPageSize = memPageSize;
         this.memNumPages = memNumPages;
+        this.fileSplits = fileSplits;
     }
 
     @Override
@@ -66,7 +69,8 @@
                     runtimeContextProvider.getLSMMergePolicy(),
                     runtimeContextProvider.getLSMRTreeOperationTrackerFactory(),
                     runtimeContextProvider.getLSMIOScheduler(),
-                    runtimeContextProvider.getLSMRTreeIOOperationCallbackProvider(), linearizeCmpFactory, partition);
+                    runtimeContextProvider.getLSMRTreeIOOperationCallbackProvider(), linearizeCmpFactory,
+                    fileSplits[partition].getIODeviceId());
         } catch (TreeIndexException e) {
             throw new HyracksDataException(e);
         }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepository.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepository.java
index 01dce6c..2361bac 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepository.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepository.java
@@ -28,8 +28,8 @@
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import edu.uci.ics.asterix.transaction.management.service.logging.LogManager;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
 import edu.uci.ics.hyracks.storage.common.file.LocalResource;
 import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactory;
@@ -37,26 +37,34 @@
 public class PersistentLocalResourceRepository implements ILocalResourceRepository {
 
     private static final Logger LOGGER = Logger.getLogger(PersistentLocalResourceRepository.class.getName());
-    private final String mountPoint;
-    private static final String ROOT_METADATA_DIRECTORY = "asterix_root_metadata/";
-    private static final String ROOT_METADATA_FILE_NAME_PREFIX = ".asterix_root_metadata_";
+    private final String[] mountPoints;
+    private static final String ROOT_METADATA_DIRECTORY = "asterix_root_metadata";
+    private static final String ROOT_METADATA_FILE_NAME_PREFIX = ".asterix_root_metadata";
     private static final long ROOT_LOCAL_RESOURCE_ID = -4321;
     private static final String METADATA_FILE_NAME = ".metadata";
     private Map<String, LocalResource> name2ResourceMap = new HashMap<String, LocalResource>();
     private Map<Long, LocalResource> id2ResourceMap = new HashMap<Long, LocalResource>();
-    private String rootMetadataFileName;
-    private String rootDir;
+    private final int numIODevices;
 
-    public PersistentLocalResourceRepository(String mountPoint) throws HyracksDataException {
-        File mountPointDir = new File(mountPoint);
-        if (!mountPointDir.exists()) {
-            throw new HyracksDataException(mountPointDir.getAbsolutePath() + "doesn't exist.");
+    public PersistentLocalResourceRepository(List<IODeviceHandle> devices) throws HyracksDataException {
+        numIODevices = devices.size();
+        this.mountPoints = new String[numIODevices];
+        for (int i = 0; i < numIODevices; i++) {
+            String mountPoint = devices.get(i).getPath().getPath();
+            File mountPointDir = new File(mountPoint);
+            if (!mountPointDir.exists()) {
+                throw new HyracksDataException(mountPointDir.getAbsolutePath() + "doesn't exist.");
+            }
+            if (!mountPoint.endsWith(System.getProperty("file.separator"))) {
+                mountPoints[i] = new String(mountPoint + System.getProperty("file.separator"));
+            } else {
+                mountPoints[i] = new String(mountPoint);
+            }
         }
-        if (!mountPoint.endsWith(System.getProperty("file.separator"))) {
-            this.mountPoint = new String(mountPoint + System.getProperty("file.separator"));
-        } else {
-            this.mountPoint = new String(mountPoint);
-        }
+    }
+
+    private String prepareRootMetaDataFileName(String mountPoint, String nodeId, int ioDeviceId) {
+        return mountPoint + ROOT_METADATA_DIRECTORY + "_" + nodeId + "_" + "iodevice" + ioDeviceId;
     }
 
     public void initialize(String nodeId, String rootDir, boolean isNewUniverse, ResourceIdFactory resourceIdFactory)
@@ -64,53 +72,40 @@
         if (LOGGER.isLoggable(Level.INFO)) {
             LOGGER.info("Initializing local resource repository ... ");
         }
-        LocalResource rootLocalResource = null;
 
-        //#. if the rootMetadataFile doesn't exist, create it and return.
-        rootMetadataFileName = new String(mountPoint + ROOT_METADATA_DIRECTORY + ROOT_METADATA_FILE_NAME_PREFIX
-                + nodeId);
-        File rootMetadataFile = new File(rootMetadataFileName);
         if (isNewUniverse) {
-            File rootMetadataDir = new File(mountPoint + ROOT_METADATA_DIRECTORY);
-            if (!rootMetadataDir.exists()) {
-                rootMetadataDir.mkdir();
-                if (LOGGER.isLoggable(Level.INFO)) {
-                    LOGGER.info("created the root-metadata-file's directory: " + rootMetadataDir.getAbsolutePath());
+            //#. if the rootMetadataFile doesn't exist, create it and return.
+            for (int i = 0; i < numIODevices; i++) {
+                String rootMetadataFileName = prepareRootMetaDataFileName(mountPoints[i], nodeId, i) + File.separator
+                        + ROOT_METADATA_FILE_NAME_PREFIX;
+                File rootMetadataFile = new File(rootMetadataFileName);
+
+                File rootMetadataDir = new File(prepareRootMetaDataFileName(mountPoints[i], nodeId, i));
+                if (!rootMetadataDir.exists()) {
+                    rootMetadataDir.mkdir();
+                    if (LOGGER.isLoggable(Level.INFO)) {
+                        LOGGER.info("created the root-metadata-file's directory: " + rootMetadataDir.getAbsolutePath());
+                    }
                 }
-            }
 
-            rootMetadataFile.delete();
-            if (rootDir.startsWith(System.getProperty("file.separator"))) {
-                this.rootDir = new String(mountPoint + rootDir.substring(System.getProperty("file.separator").length()));
-            } else {
-                this.rootDir = new String(mountPoint + rootDir);
-            }
-            rootLocalResource = new LocalResource(ROOT_LOCAL_RESOURCE_ID, rootMetadataFileName, 0, 0, this.rootDir);
-            insert(rootLocalResource);
-            if (LOGGER.isLoggable(Level.INFO)) {
-                LOGGER.info("created the root-metadata-file: " + rootMetadataFileName);
-            }
-            
-            if (LOGGER.isLoggable(Level.INFO)) {
-                LOGGER.info("Completed the initialization of the local resource repository");
-            }
-            return;
-        }
+                rootMetadataFile.delete();
+                String mountedRootDir;
+                if (rootDir.startsWith(System.getProperty("file.separator"))) {
+                    mountedRootDir = new String(mountPoints[i]
+                            + rootDir.substring(System.getProperty("file.separator").length()));
+                } else {
+                    mountedRootDir = new String(mountPoints[i] + rootDir);
+                }
+                LocalResource rootLocalResource = new LocalResource(ROOT_LOCAL_RESOURCE_ID, rootMetadataFileName, 0, 0,
+                        mountedRootDir);
+                insert(rootLocalResource, i);
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("created the root-metadata-file: " + rootMetadataFileName);
+                }
 
-        //#. if the rootMetadataFile exists, read it and set this.rootDir.
-        rootLocalResource = readLocalResource(rootMetadataFile);
-        this.rootDir = (String) rootLocalResource.getResourceObject();
-        if (LOGGER.isLoggable(Level.INFO)) {
-            LOGGER.info("The root directory of the local resource repository is " + this.rootDir);
-        }
-
-        //#. load all local resources. 
-        File rootDirFile = new File(this.rootDir);
-        if (!rootDirFile.exists()) {
-            //rootDir may not exist if this node is not the metadata node and doesn't have any user data.
-            if (LOGGER.isLoggable(Level.INFO)) {
-                LOGGER.info("The root directory of the local resource repository doesn't exist: there is no local resource.");
-                LOGGER.info("Completed the initialization of the local resource repository");
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("Completed the initialization of the local resource repository");
+                }
             }
             return;
         }
@@ -125,27 +120,50 @@
             }
         };
 
-        long maxResourceId = 0;
-        File[] dataverseFileList = rootDirFile.listFiles();
-        if (dataverseFileList == null) {
-            throw new HyracksDataException("Metadata dataverse doesn't exist.");
-        }
-        for (File dataverseFile : dataverseFileList) {
-            if (dataverseFile.isDirectory()) {
-                File[] indexFileList = dataverseFile.listFiles();
-                if (indexFileList != null) {
-                    for (File indexFile : indexFileList) {
-                        if (indexFile.isDirectory()) {
-                            File[] metadataFiles = indexFile.listFiles(filter);
-                            if (metadataFiles != null) {
-                                for (File metadataFile : metadataFiles) {
-                                    LocalResource localResource = readLocalResource(metadataFile);
-                                    id2ResourceMap.put(localResource.getResourceId(), localResource);
-                                    name2ResourceMap.put(localResource.getResourceName(), localResource);
-                                    maxResourceId = Math.max(localResource.getResourceId(), maxResourceId);
-                                    if (LOGGER.isLoggable(Level.INFO)) {
-                                        LOGGER.info("loaded local resource - [id: " + localResource.getResourceId()
-                                                + ", name: " + localResource.getResourceName() + "]");
+        for (int i = 0; i < numIODevices; i++) {
+            String rootMetadataFileName = prepareRootMetaDataFileName(mountPoints[i], nodeId, i) + File.separator
+                    + ROOT_METADATA_FILE_NAME_PREFIX;
+            File rootMetadataFile = new File(rootMetadataFileName);
+            //#. if the rootMetadataFile exists, read it and set this.rootDir.
+            LocalResource rootLocalResource = readLocalResource(rootMetadataFile);
+            String mountedRootDir = (String) rootLocalResource.getResourceObject();
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.info("The root directory of the local resource repository is " + mountedRootDir);
+            }
+
+            //#. load all local resources. 
+            File rootDirFile = new File(mountedRootDir);
+            if (!rootDirFile.exists()) {
+                //rootDir may not exist if this node is not the metadata node and doesn't have any user data.
+                if (LOGGER.isLoggable(Level.INFO)) {
+                    LOGGER.info("The root directory of the local resource repository doesn't exist: there is no local resource.");
+                    LOGGER.info("Completed the initialization of the local resource repository");
+                }
+                continue;
+            }
+
+            long maxResourceId = 0;
+            File[] dataverseFileList = rootDirFile.listFiles();
+            if (dataverseFileList == null) {
+                throw new HyracksDataException("Metadata dataverse doesn't exist.");
+            }
+            for (File dataverseFile : dataverseFileList) {
+                if (dataverseFile.isDirectory()) {
+                    File[] indexFileList = dataverseFile.listFiles();
+                    if (indexFileList != null) {
+                        for (File indexFile : indexFileList) {
+                            if (indexFile.isDirectory()) {
+                                File[] metadataFiles = indexFile.listFiles(filter);
+                                if (metadataFiles != null) {
+                                    for (File metadataFile : metadataFiles) {
+                                        LocalResource localResource = readLocalResource(metadataFile);
+                                        id2ResourceMap.put(localResource.getResourceId(), localResource);
+                                        name2ResourceMap.put(localResource.getResourceName(), localResource);
+                                        maxResourceId = Math.max(localResource.getResourceId(), maxResourceId);
+                                        if (LOGGER.isLoggable(Level.INFO)) {
+                                            LOGGER.info("loaded local resource - [id: " + localResource.getResourceId()
+                                                    + ", name: " + localResource.getResourceName() + "]");
+                                        }
                                     }
                                 }
                             }
@@ -153,11 +171,11 @@
                     }
                 }
             }
-        }
-        resourceIdFactory.initId(maxResourceId + 1);
-        if (LOGGER.isLoggable(Level.INFO)) {
-            LOGGER.info("The resource id factory is intialized with the value: " + (maxResourceId + 1));
-            LOGGER.info("Completed the initialization of the local resource repository");
+            resourceIdFactory.initId(maxResourceId + 1);
+            if (LOGGER.isLoggable(Level.INFO)) {
+                LOGGER.info("The resource id factory is intialized with the value: " + (maxResourceId + 1));
+                LOGGER.info("Completed the initialization of the local resource repository");
+            }
         }
     }
 
@@ -172,7 +190,7 @@
     }
 
     @Override
-    public synchronized void insert(LocalResource resource) throws HyracksDataException {
+    public synchronized void insert(LocalResource resource, int ioDeviceId) throws HyracksDataException {
         long id = resource.getResourceId();
 
         if (id2ResourceMap.containsKey(id)) {
@@ -186,8 +204,10 @@
 
         FileOutputStream fos = null;
         ObjectOutputStream oosToFos = null;
+
         try {
-            fos = new FileOutputStream(getFileName(mountPoint, resource.getResourceName(), resource.getResourceId()));
+            fos = new FileOutputStream(getFileName(mountPoints[ioDeviceId], resource.getResourceName(),
+                    resource.getResourceId()));
             oosToFos = new ObjectOutputStream(fos);
             oosToFos.writeObject(resource);
             oosToFos.flush();
@@ -212,26 +232,26 @@
     }
 
     @Override
-    public synchronized void deleteResourceById(long id) throws HyracksDataException {
+    public synchronized void deleteResourceById(long id, int ioDeviceId) throws HyracksDataException {
         LocalResource resource = id2ResourceMap.get(id);
         if (resource == null) {
             throw new HyracksDataException("Resource doesn't exist");
         }
         id2ResourceMap.remove(id);
         name2ResourceMap.remove(resource.getResourceName());
-        File file = new File(getFileName(mountPoint, resource.getResourceName(), resource.getResourceId()));
+        File file = new File(getFileName(mountPoints[ioDeviceId], resource.getResourceName(), resource.getResourceId()));
         file.delete();
     }
 
     @Override
-    public synchronized void deleteResourceByName(String name) throws HyracksDataException {
+    public synchronized void deleteResourceByName(String name, int ioDeviceId) throws HyracksDataException {
         LocalResource resource = name2ResourceMap.get(name);
         if (resource == null) {
             throw new HyracksDataException("Resource doesn't exist");
         }
         id2ResourceMap.remove(resource.getResourceId());
         name2ResourceMap.remove(name);
-        File file = new File(getFileName(mountPoint, resource.getResourceName(), resource.getResourceId()));
+        File file = new File(getFileName(mountPoints[ioDeviceId], resource.getResourceName(), resource.getResourceId()));
         file.delete();
     }
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepositoryFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepositoryFactory.java
index c7efca5..f6847f9 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepositoryFactory.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceRepositoryFactory.java
@@ -14,11 +14,8 @@
  */
 package edu.uci.ics.asterix.transaction.management.resource;
 
-import java.util.List;
-
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.api.io.IIOManager;
-import edu.uci.ics.hyracks.api.io.IODeviceHandle;
 import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
 import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepositoryFactory;
 
@@ -31,7 +28,6 @@
 
     @Override
     public ILocalResourceRepository createRepository() throws HyracksDataException {
-        List<IODeviceHandle> devices = ioManager.getIODevices();
-        return new PersistentLocalResourceRepository(devices.get(0).getPath().getPath());
+        return new PersistentLocalResourceRepository(ioManager.getIODevices());
     }
-}
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DeadlockDetector.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DeadlockDetector.java
index 900725b..600beab 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DeadlockDetector.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DeadlockDetector.java
@@ -2,8 +2,8 @@
 
 import java.util.HashMap;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
+import edu.uci.ics.asterix.common.transactions.JobId;
 
 /**
  * @author pouria, kisskys Performing a BFS search, upon adding each waiter to a waiting
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java
index 4f01f37..d846603 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java
@@ -1,19 +1,19 @@
 package edu.uci.ics.asterix.transaction.management.service.locking;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
 
 public class JobInfo {
     private EntityInfoManager entityInfoManager;
     private LockWaiterManager lockWaiterManager;
-    private TransactionContext jobCtx;
+    private ITransactionContext jobCtx;
     private int lastHoldingResource; //resource(entity or dataset) which is held by this job lastly
     private int firstWaitingResource; //resource(entity or dataset) which this job is waiting for
     private int upgradingResource; //resource(entity or dataset) which this job is waiting for to upgrade
 
     private PrimitiveIntHashMap datasetISLockHT; //used for keeping dataset-granule-lock's count acquired by this job. 
 
-    public JobInfo(EntityInfoManager entityInfoManager, LockWaiterManager lockWaiterManager, TransactionContext txnCtx) {
+    public JobInfo(EntityInfoManager entityInfoManager, LockWaiterManager lockWaiterManager, ITransactionContext txnCtx) {
         this.entityInfoManager = entityInfoManager;
         this.lockWaiterManager = lockWaiterManager;
         this.jobCtx = txnCtx;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java
index a354d2a..8fb7494 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManager.java
@@ -22,14 +22,15 @@
 import java.util.concurrent.locks.ReadWriteLock;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
+import edu.uci.ics.asterix.common.transactions.ILockManager;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager.TransactionState;
+import edu.uci.ics.asterix.common.transactions.JobId;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager.TransactionState;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
@@ -107,12 +108,12 @@
     }
 
     @Override
-    public void lock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
+    public void lock(DatasetId datasetId, int entityHashValue, byte lockMode, ITransactionContext txnContext)
             throws ACIDException {
         internalLock(datasetId, entityHashValue, lockMode, txnContext, false);
     }
 
-    private void internalLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext,
+    private void internalLock(DatasetId datasetId, int entityHashValue, byte lockMode, ITransactionContext txnContext,
             boolean isInstant) throws ACIDException {
 
         JobId jobId = txnContext.getJobId();
@@ -252,7 +253,7 @@
         return;
     }
 
-    private void releaseDatasetISLocks(JobInfo jobInfo, JobId jobId, DatasetId datasetId, TransactionContext txnContext)
+    private void releaseDatasetISLocks(JobInfo jobInfo, JobId jobId, DatasetId datasetId, ITransactionContext txnContext)
             throws ACIDException {
         int entityInfo;
         int prevEntityInfo;
@@ -295,16 +296,16 @@
         }
     }
 
-    private void validateJob(TransactionContext txnContext) throws ACIDException {
+    private void validateJob(ITransactionContext txnContext) throws ACIDException {
         if (txnContext.getTxnState() == TransactionState.ABORTED) {
             throw new ACIDException("" + txnContext.getJobId() + " is in ABORTED state.");
-        } else if (txnContext.getStatus() == TransactionContext.TIMED_OUT_STATUS) {
+        } else if (txnContext.getStatus() == ITransactionContext.TIMED_OUT_STATUS) {
             requestAbort(txnContext);
         }
     }
 
     private int lockDatasetGranule(DatasetId datasetId, int entityHashValue, byte lockMode,
-            TransactionContext txnContext) throws ACIDException {
+            ITransactionContext txnContext) throws ACIDException {
         JobId jobId = txnContext.getJobId();
         int jId = jobId.getId(); //int-type jobId
         int dId = datasetId.getId(); //int-type datasetId
@@ -525,7 +526,7 @@
     }
 
     private void lockEntityGranule(DatasetId datasetId, int entityHashValue, byte lockMode,
-            int entityInfoFromDLockInfo, TransactionContext txnContext) throws ACIDException {
+            int entityInfoFromDLockInfo, ITransactionContext txnContext) throws ACIDException {
         JobId jobId = txnContext.getJobId();
         int jId = jobId.getId(); //int-type jobId
         int waiterObjId;
@@ -632,22 +633,22 @@
     }
 
     @Override
-    public void unlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext) throws ACIDException {
+    public void unlock(DatasetId datasetId, int entityHashValue, ITransactionContext txnContext) throws ACIDException {
         internalUnlock(datasetId, entityHashValue, txnContext, false, false);
     }
 
     @Override
-    public void unlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext, boolean commitFlag)
+    public void unlock(DatasetId datasetId, int entityHashValue, ITransactionContext txnContext, boolean commitFlag)
             throws ACIDException {
         internalUnlock(datasetId, entityHashValue, txnContext, false, commitFlag);
     }
 
-    private void instantUnlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext)
+    private void instantUnlock(DatasetId datasetId, int entityHashValue, ITransactionContext txnContext)
             throws ACIDException {
         internalUnlock(datasetId, entityHashValue, txnContext, true, false);
     }
 
-    private void internalUnlock(DatasetId datasetId, int entityHashValue, TransactionContext txnContext,
+    private void internalUnlock(DatasetId datasetId, int entityHashValue, ITransactionContext txnContext,
             boolean isInstant, boolean commitFlag) throws ACIDException {
         JobId jobId = txnContext.getJobId();
         int eLockInfo = -1;
@@ -712,7 +713,7 @@
                 //This code should be taken care properly when there is a way to avoid doubling memory space for txnIds.
                 //This commit log is written here in order to avoid increasing the memory space for managing transactionIds
                 if (commitFlag) {
-                    if (txnContext.getTransactionType().equals(TransactionContext.TransactionType.READ_WRITE)) {
+                    if (txnContext.getTransactionType().equals(ITransactionContext.TransactionType.READ_WRITE)) {
                         try {
                             txnSubsystem.getLogManager().log(LogType.ENTITY_COMMIT, txnContext, datasetId.getId(),
                                     entityHashValue, -1, (byte) 0, 0, null, null, logicalLogLocator);
@@ -785,7 +786,7 @@
     }
 
     @Override
-    public void releaseLocks(TransactionContext txnContext) throws ACIDException {
+    public void releaseLocks(ITransactionContext txnContext) throws ACIDException {
         LockWaiter waiterObj;
         int entityInfo;
         int prevEntityInfo;
@@ -962,7 +963,7 @@
             jobHT.remove(jobId);
 
             if (existWaiter) {
-                txnContext.setStatus(TransactionContext.TIMED_OUT_STATUS);
+                txnContext.setStatus(ITransactionContext.TIMED_OUT_STATUS);
                 txnContext.setTxnState(TransactionState.ABORTED);
             }
 
@@ -976,7 +977,7 @@
     }
 
     @Override
-    public void instantLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
+    public void instantLock(DatasetId datasetId, int entityHashValue, byte lockMode, ITransactionContext txnContext)
             throws ACIDException {
 
         //        try {
@@ -990,19 +991,19 @@
     }
 
     @Override
-    public boolean tryLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
+    public boolean tryLock(DatasetId datasetId, int entityHashValue, byte lockMode, ITransactionContext txnContext)
             throws ACIDException {
         return internalTryLock(datasetId, entityHashValue, lockMode, txnContext, false);
     }
 
     @Override
-    public boolean instantTryLock(DatasetId datasetId, int entityHashValue, byte lockMode, TransactionContext txnContext)
-            throws ACIDException {
+    public boolean instantTryLock(DatasetId datasetId, int entityHashValue, byte lockMode,
+            ITransactionContext txnContext) throws ACIDException {
         return internalInstantTryLock(datasetId, entityHashValue, lockMode, txnContext);
     }
 
     private boolean internalInstantTryLock(DatasetId datasetId, int entityHashValue, byte lockMode,
-            TransactionContext txnContext) throws ACIDException {
+            ITransactionContext txnContext) throws ACIDException {
         DatasetLockInfo dLockInfo = null;
         boolean isSuccess = true;
 
@@ -1065,7 +1066,7 @@
     }
 
     private boolean instantTryLockDatasetGranule(DatasetId datasetId, int entityHashValue, byte lockMode,
-            TransactionContext txnContext, DatasetLockInfo dLockInfo, byte datasetLockMode) throws ACIDException {
+            ITransactionContext txnContext, DatasetLockInfo dLockInfo, byte datasetLockMode) throws ACIDException {
         JobId jobId = txnContext.getJobId();
         int jId = jobId.getId(); //int-type jobId
         int dId = datasetId.getId(); //int-type datasetId
@@ -1144,7 +1145,7 @@
     }
 
     private boolean instantTryLockEntityGranule(DatasetId datasetId, int entityHashValue, byte lockMode,
-            TransactionContext txnContext, DatasetLockInfo dLockInfo) throws ACIDException {
+            ITransactionContext txnContext, DatasetLockInfo dLockInfo) throws ACIDException {
         JobId jobId = txnContext.getJobId();
         int jId = jobId.getId(); //int-type jobId
         int waiterObjId;
@@ -1205,7 +1206,7 @@
     }
 
     private boolean internalTryLock(DatasetId datasetId, int entityHashValue, byte lockMode,
-            TransactionContext txnContext, boolean isInstant) throws ACIDException {
+            ITransactionContext txnContext, boolean isInstant) throws ACIDException {
         JobId jobId = txnContext.getJobId();
         int jId = jobId.getId(); //int-type jobId
         int dId = datasetId.getId(); //int-type datasetId
@@ -1352,7 +1353,7 @@
     }
 
     private void trackLockRequest(String msg, int requestType, DatasetId datasetIdObj, int entityHashValue,
-            byte lockMode, TransactionContext txnContext, DatasetLockInfo dLockInfo, int eLockInfo) {
+            byte lockMode, ITransactionContext txnContext, DatasetLockInfo dLockInfo, int eLockInfo) {
         StringBuilder s = new StringBuilder();
         LockRequest request = new LockRequest(Thread.currentThread().getName(), requestType, datasetIdObj,
                 entityHashValue, lockMode, txnContext);
@@ -1425,7 +1426,7 @@
     }
 
     private void revertTryLockDatasetGranuleOperation(DatasetId datasetId, int entityHashValue, byte lockMode,
-            int entityInfo, TransactionContext txnContext) {
+            int entityInfo, ITransactionContext txnContext) {
         JobId jobId = txnContext.getJobId();
         DatasetLockInfo dLockInfo;
         JobInfo jobInfo;
@@ -1483,7 +1484,7 @@
     }
 
     private int tryLockDatasetGranule(DatasetId datasetId, int entityHashValue, byte lockMode,
-            TransactionContext txnContext) throws ACIDException {
+            ITransactionContext txnContext) throws ACIDException {
         JobId jobId = txnContext.getJobId();
         int jId = jobId.getId(); //int-type jobId
         int dId = datasetId.getId(); //int-type datasetId
@@ -1645,7 +1646,7 @@
     }
 
     private boolean tryLockEntityGranule(DatasetId datasetId, int entityHashValue, byte lockMode,
-            int entityInfoFromDLockInfo, TransactionContext txnContext) throws ACIDException {
+            int entityInfoFromDLockInfo, ITransactionContext txnContext) throws ACIDException {
         JobId jobId = txnContext.getJobId();
         int jId = jobId.getId(); //int-type jobId
         int waiterObjId;
@@ -1735,7 +1736,7 @@
     }
 
     private int handleLockWaiter(DatasetLockInfo dLockInfo, int eLockInfo, int entityInfo, boolean isUpgrade,
-            boolean isDatasetLockInfo, TransactionContext txnContext, JobInfo jobInfo, int duplicatedWaiterObjId)
+            boolean isDatasetLockInfo, ITransactionContext txnContext, JobInfo jobInfo, int duplicatedWaiterObjId)
             throws ACIDException {
         int waiterId = -1;
         LockWaiter waiter;
@@ -1812,7 +1813,7 @@
             //waiter woke up -> remove/deallocate waiter object and abort if timeout
             latchLockTable();
 
-            if (txnContext.getStatus() == TransactionContext.TIMED_OUT_STATUS || waiter.isVictim()) {
+            if (txnContext.getStatus() == ITransactionContext.TIMED_OUT_STATUS || waiter.isVictim()) {
                 requestAbort(txnContext);
             }
 
@@ -1868,9 +1869,9 @@
         return deadlockDetector.isSafeToAdd(dLockInfo, eLockInfo, entityInfo, isDatasetLockInfo, isUpgrade);
     }
 
-    private void requestAbort(TransactionContext txnContext) throws ACIDException {
-        txnContext.setStatus(TransactionContext.TIMED_OUT_STATUS);
-        txnContext.setStartWaitTime(TransactionContext.INVALID_TIME);
+    private void requestAbort(ITransactionContext txnContext) throws ACIDException {
+        txnContext.setStatus(ITransactionContext.TIMED_OUT_STATUS);
+        txnContext.setStartWaitTime(ITransactionContext.INVALID_TIME);
         throw new ACIDException("Transaction " + txnContext.getJobId()
                 + " should abort (requested by the Lock Manager)");
     }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
index c3b47bc..0781276 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
@@ -7,10 +7,11 @@
 import java.util.NoSuchElementException;
 import java.util.Scanner;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager.TransactionState;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
+import edu.uci.ics.asterix.common.transactions.ILockManager;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager.TransactionState;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java
index 89a15ef..b2cc6ab 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerRandomUnitTest.java
@@ -3,10 +3,12 @@
 import java.util.ArrayList;
 import java.util.Random;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager.TransactionState;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
+import edu.uci.ics.asterix.common.transactions.ILockManager;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager.TransactionState;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants.LockManagerConstants.LockMode;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
@@ -502,14 +504,14 @@
     public DatasetId datasetIdObj;
     public int entityHashValue;
     public byte lockMode;
-    public TransactionContext txnContext;
+    public ITransactionContext txnContext;
     public boolean isUpgrade;
     public boolean isTryLockFailed;
     public long requestTime;
     public String threadName;
 
     public LockRequest(String threadName, int requestType, DatasetId datasetIdObj, int entityHashValue, byte lockMode,
-            TransactionContext txnContext) {
+            ITransactionContext txnContext) {
         this.requestType = requestType;
         this.datasetIdObj = datasetIdObj;
         this.entityHashValue = entityHashValue;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockMgrLatchHandlerException.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockMgrLatchHandlerException.java
index 05a582c..84ba407 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockMgrLatchHandlerException.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockMgrLatchHandlerException.java
@@ -14,7 +14,7 @@
  */
 package edu.uci.ics.asterix.transaction.management.service.locking;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 
 public class LockMgrLatchHandlerException extends ACIDException {
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TimeOutDetector.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TimeOutDetector.java
index 6bc8c6b..a53c890 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TimeOutDetector.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/TimeOutDetector.java
@@ -2,7 +2,7 @@
 
 import java.util.LinkedList;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 
 /**
  * @author pouria, kisskys
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/Buffer.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/Buffer.java
index 23a60f7..284b081 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/Buffer.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/Buffer.java
@@ -17,6 +17,8 @@
 import java.nio.ByteBuffer;
 import java.util.Arrays;
 
+import edu.uci.ics.asterix.common.transactions.IBuffer;
+
 /**
  * Represents a wrapper over @see ByteBuffer supporting some custom APIs for
  * transaction support. This class is not "thread-safe". For performance
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/DataUtil.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/DataUtil.java
index 91ce7ed..0d8448c 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/DataUtil.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/DataUtil.java
@@ -16,6 +16,8 @@
 
 import java.util.zip.CRC32;
 
+import edu.uci.ics.asterix.common.transactions.IBuffer;
+
 /**
  * A utility class for doing bit level operations such as forming checksum or
  * converting between Integer and byte array. Used extensively during writing
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/GenericFilter.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/GenericFilter.java
index 6bb644d..e9ec4fa 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/GenericFilter.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/GenericFilter.java
@@ -17,6 +17,9 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import edu.uci.ics.asterix.common.transactions.IBuffer;
+import edu.uci.ics.asterix.common.transactions.ILogFilter;
+
 /*
  *  A generic filter that encompasses one or more filters (see @ILogFiler) that may be applied when selectively retrieving logs.
  *  The contained filters are assumed to form a conjunction.   
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogger.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogger.java
deleted file mode 100644
index e26a3cc..0000000
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/ILogger.java
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright 2009-2010 by The Regents of the University of California
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * you may obtain a copy of the License from
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package edu.uci.ics.asterix.transaction.management.service.logging;
-
-
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger.ReusableLogContentObject;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-
-/**
- * An interface providing call back APIs that are invoked {@link ILogManager} for providing the content for the log record and doing any pre/post
- * processing.
- */
-public interface ILogger {
-
-    public void preLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException;
-
-    public void log(TransactionContext context, final LogicalLogLocator logicalLogLocator, int logContentSize,
-            ReusableLogContentObject reusableLogContentObject) throws ACIDException;
-
-    public void postLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException;
-
-}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java
index d69a36e..ca30124 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLogger.java
@@ -18,11 +18,14 @@
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.resource.ICloseable;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.ICloseable;
+import edu.uci.ics.asterix.common.transactions.ILogger;
+import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
+import edu.uci.ics.asterix.common.transactions.ReusableLogContentObject;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.ITupleReference;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
@@ -53,14 +56,14 @@
         this.tupleWriter = new SimpleTupleWriter();
     }
 
-    public synchronized void close(TransactionContext context) {
+    public synchronized void close(ITransactionContext context) {
         ReusableLogContentObjectRepository txnThreadStateRepository = (ReusableLogContentObjectRepository) jobId2ReusableLogContentObjectRepositoryMap
                 .get(context.getJobId());
         txnThreadStateRepository.remove(Thread.currentThread().getId());
         jobId2ReusableLogContentObjectRepositoryMap.remove(context.getJobId());
     }
 
-    public void generateLogRecord(TransactionSubsystem txnSubsystem, TransactionContext context, int datasetId,
+    public void generateLogRecord(ITransactionSubsystem txnSubsystem, ITransactionContext context, int datasetId,
             int PKHashValue, long resourceId, IndexOperation newOperation, ITupleReference newValue,
             IndexOperation oldOperation, ITupleReference oldValue) throws ACIDException {
 
@@ -120,7 +123,7 @@
     }
 
     @Override
-    public void log(TransactionContext context, LogicalLogLocator logicalLogLocator, int logContentSize,
+    public void log(ITransactionContext context, LogicalLogLocator logicalLogLocator, int logContentSize,
             ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         int offset = 0;
         int tupleSize = 0;
@@ -175,12 +178,12 @@
     }
 
     @Override
-    public void postLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject)
+    public void postLog(ITransactionContext context, ReusableLogContentObject reusableLogContentObject)
             throws ACIDException {
     }
 
     @Override
-    public void preLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject)
+    public void preLog(ITransactionContext context, ReusableLogContentObject reusableLogContentObject)
             throws ACIDException {
     }
 
@@ -207,67 +210,4 @@
         }
     }
 
-    /**
-     * Represents the state of a transaction thread. The state contains information
-     * that includes the tuple being operated, the operation and the location of the
-     * log record corresponding to the operation.
-     */
-    public class ReusableLogContentObject {
-
-        private LogicalLogLocator logicalLogLocator;
-        private IndexOperation newOperation;
-        private ITupleReference newValue;
-        private IndexOperation oldOperation;
-        private ITupleReference oldValue;
-
-        public ReusableLogContentObject(LogicalLogLocator logicalLogLocator, IndexOperation newOperation,
-                ITupleReference newValue, IndexOperation oldOperation, ITupleReference oldValue) {
-            this.logicalLogLocator = logicalLogLocator;
-            this.newOperation = newOperation;
-            this.newValue = newValue;
-            this.oldOperation = oldOperation;
-            this.oldValue = oldValue;
-        }
-
-        public synchronized LogicalLogLocator getLogicalLogLocator() {
-            return logicalLogLocator;
-        }
-
-        public synchronized void setLogicalLogLocator(LogicalLogLocator logicalLogLocator) {
-            this.logicalLogLocator = logicalLogLocator;
-        }
-
-        public synchronized void setNewOperation(IndexOperation newOperation) {
-            this.newOperation = newOperation;
-        }
-
-        public synchronized IndexOperation getNewOperation() {
-            return newOperation;
-        }
-
-        public synchronized void setNewValue(ITupleReference newValue) {
-            this.newValue = newValue;
-        }
-
-        public synchronized ITupleReference getNewValue() {
-            return newValue;
-        }
-
-        public synchronized void setOldOperation(IndexOperation oldOperation) {
-            this.oldOperation = oldOperation;
-        }
-
-        public synchronized IndexOperation getOldOperation() {
-            return oldOperation;
-        }
-
-        public synchronized void setOldValue(ITupleReference oldValue) {
-            this.oldValue = oldValue;
-        }
-
-        public synchronized ITupleReference getOldValue() {
-            return oldValue;
-        }
-    }
-
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLoggerRepository.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLoggerRepository.java
index da5042c..c51bb11 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLoggerRepository.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexLoggerRepository.java
@@ -17,24 +17,27 @@
 import java.util.HashMap;
 import java.util.Map;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.MutableResourceId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.ILogger;
+import edu.uci.ics.asterix.common.transactions.ILoggerRepository;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.MutableResourceId;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
 
-public class IndexLoggerRepository {
+public class IndexLoggerRepository implements ILoggerRepository {
 
-    private final Map<MutableResourceId, IndexLogger> loggers = new HashMap<MutableResourceId, IndexLogger>();
-    private final TransactionSubsystem txnSubsystem;
+    private final Map<MutableResourceId, ILogger> loggers = new HashMap<MutableResourceId, ILogger>();
+    private final ITransactionSubsystem txnSubsystem;
     private MutableResourceId mutableResourceId;
 
-    public IndexLoggerRepository(TransactionSubsystem provider) {
+    public IndexLoggerRepository(ITransactionSubsystem provider) {
         this.txnSubsystem = provider;
         mutableResourceId = new MutableResourceId(0);
     }
 
-    public synchronized IndexLogger getIndexLogger(long resourceId, byte resourceType) {
+    @Override
+    public synchronized ILogger getIndexLogger(long resourceId, byte resourceType) {
         mutableResourceId.setId(resourceId);
-        IndexLogger logger = loggers.get(mutableResourceId);
+        ILogger logger = loggers.get(mutableResourceId);
         if (logger == null) {
             MutableResourceId newMutableResourceId = new MutableResourceId(resourceId);
             IIndex index = (IIndex) txnSubsystem.getAsterixAppRuntimeContextProvider().getIndexLifecycleManager()
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexResourceManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexResourceManager.java
index 7ecfa69..ce3401c 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexResourceManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/IndexResourceManager.java
@@ -14,9 +14,11 @@
  */
 package edu.uci.ics.asterix.transaction.management.service.logging;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.ILogRecordHelper;
+import edu.uci.ics.asterix.common.transactions.IResourceManager;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
 import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallback;
 import edu.uci.ics.hyracks.storage.am.common.ophelpers.IndexOperation;
@@ -28,9 +30,9 @@
 
     public final byte resourceType;
 
-    private final TransactionSubsystem txnSubsystem;
+    private final ITransactionSubsystem txnSubsystem;
 
-    public IndexResourceManager(byte resourceType, TransactionSubsystem provider) {
+    public IndexResourceManager(byte resourceType, ITransactionSubsystem provider) {
         this.resourceType = resourceType;
         this.txnSubsystem = provider;
     }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java
index 7e954d8..f452631 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogCursor.java
@@ -17,7 +17,15 @@
 import java.io.File;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.FileUtil;
+import edu.uci.ics.asterix.common.transactions.IBuffer;
+import edu.uci.ics.asterix.common.transactions.IFileBasedBuffer;
+import edu.uci.ics.asterix.common.transactions.ILogCursor;
+import edu.uci.ics.asterix.common.transactions.ILogFilter;
+import edu.uci.ics.asterix.common.transactions.LogManagerProperties;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
+import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
 
 public class LogCursor implements ILogCursor {
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
index 38d39cc..318996a 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
@@ -31,8 +31,20 @@
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger.ReusableLogContentObject;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.FileBasedBuffer;
+import edu.uci.ics.asterix.common.transactions.FileUtil;
+import edu.uci.ics.asterix.common.transactions.IFileBasedBuffer;
+import edu.uci.ics.asterix.common.transactions.ILogCursor;
+import edu.uci.ics.asterix.common.transactions.ILogFilter;
+import edu.uci.ics.asterix.common.transactions.ILogManager;
+import edu.uci.ics.asterix.common.transactions.ILogRecordHelper;
+import edu.uci.ics.asterix.common.transactions.ILogger;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.LogManagerProperties;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
+import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
+import edu.uci.ics.asterix.common.transactions.ReusableLogContentObject;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
@@ -78,7 +90,7 @@
      */
     private AtomicLong lsn = new AtomicLong(0);
 
-    private List<HashMap<TransactionContext, Integer>> activeTxnCountMaps;
+    private List<HashMap<ITransactionContext, Integer>> activeTxnCountMaps;
 
     public void addFlushRequest(int pageIndex, long lsn, boolean isSynchronous) {
         logPageFlusher.requestFlush(pageIndex, lsn, isSynchronous);
@@ -147,9 +159,10 @@
     private void initLogManager() throws ACIDException {
         logRecordHelper = new LogRecordHelper(this);
         numLogPages = logManagerProperties.getNumLogPages();
-        activeTxnCountMaps = new ArrayList<HashMap<TransactionContext, Integer>>(numLogPages);
+        activeTxnCountMaps = new ArrayList<HashMap<ITransactionContext, Integer>>(numLogPages);
+
         for (int i = 0; i < numLogPages; i++) {
-            activeTxnCountMaps.add(new HashMap<TransactionContext, Integer>());
+            activeTxnCountMaps.add(new HashMap<ITransactionContext, Integer>());
         }
 
         logPages = new FileBasedBuffer[numLogPages];
@@ -264,10 +277,10 @@
                 // space in the log page and hence is an owner.
                 logPages[prevPage].incRefCnt();
                 logPages[prevPage].releaseReadLatch();
-                
+
                 // forward the nextWriteOffset in the log page
                 logPages[prevPage].setBufferNextWriteOffset(logPageSize);
-                
+
                 logPages[prevPage].decRefCnt();
 
                 addFlushRequest(prevPage, old, false);
@@ -298,11 +311,11 @@
     }
 
     @Override
-    public void log(byte logType, TransactionContext txnCtx, int datasetId, int PKHashValue, long resourceId,
+    public void log(byte logType, ITransactionContext txnCtx, int datasetId, int PKHashValue, long resourceId,
             byte resourceMgrId, int logContentSize, ReusableLogContentObject reusableLogContentObject, ILogger logger,
             LogicalLogLocator logicalLogLocator) throws ACIDException {
 
-        HashMap<TransactionContext, Integer> map = null;
+        HashMap<ITransactionContext, Integer> map = null;
         int activeTxnCount;
 
         // logLocator is a re-usable object that is appropriately set in each
@@ -721,14 +734,14 @@
     }
 
     public void decrementActiveTxnCountOnIndexes(int pageIndex) throws HyracksDataException {
-        TransactionContext ctx = null;
+        ITransactionContext ctx = null;
         int count = 0;
         int i = 0;
 
-        HashMap<TransactionContext, Integer> map = activeTxnCountMaps.get(pageIndex);
-        Set<Map.Entry<TransactionContext, Integer>> entrySet = map.entrySet();
+        HashMap<ITransactionContext, Integer> map = activeTxnCountMaps.get(pageIndex);
+        Set<Map.Entry<ITransactionContext, Integer>> entrySet = map.entrySet();
         if (entrySet != null) {
-            for (Map.Entry<TransactionContext, Integer> entry : entrySet) {
+            for (Map.Entry<ITransactionContext, Integer> entry : entrySet) {
                 if (entry != null) {
                     if (entry.getValue() != null) {
                         count = entry.getValue();
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogRecordHelper.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogRecordHelper.java
index 1b65d8f..ed30b88 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogRecordHelper.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogRecordHelper.java
@@ -14,7 +14,12 @@
  */
 package edu.uci.ics.asterix.transaction.management.service.logging;
 
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.common.transactions.ILogManager;
+import edu.uci.ics.asterix.common.transactions.ILogRecordHelper;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.LogManagerProperties;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
+import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
 
 /**
  * An implementation of the @see ILogRecordHelper interface that provides API
@@ -63,9 +68,7 @@
     private final int RESOURCE_ID_POS = 25;
     private final int RESOURCE_MGR_ID_POS = 33;
     private final int LOG_RECORD_SIZE_POS = 34;
-    
 
-    
     private ILogManager logManager;
 
     public LogRecordHelper(ILogManager logManager) {
@@ -181,7 +184,7 @@
     }
 
     @Override
-    public void writeLogHeader(LogicalLogLocator logicalLogLocator, byte logType, TransactionContext context,
+    public void writeLogHeader(LogicalLogLocator logicalLogLocator, byte logType, ITransactionContext context,
             int datasetId, int PKHashValue, long prevLogicalLogLocator, long resourceId, byte resourceMgrId,
             int logRecordSize) {
 
@@ -258,8 +261,8 @@
     public int getLogChecksumSize() {
         return LOG_CHECKSUM_SIZE;
     }
-    
+
     public int getCommitLogSize() {
         return COMMIT_LOG_SIZE;
     }
-}
+}
\ No newline at end of file
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogUtil.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogUtil.java
index 77a99bc..e57bf32 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogUtil.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogUtil.java
@@ -24,7 +24,13 @@
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.FileUtil;
+import edu.uci.ics.asterix.common.transactions.ILogManager;
+import edu.uci.ics.asterix.common.transactions.LogManagerProperties;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
+import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
+
 
 /**
  * A utility class providing helper methods for the {@link ILogManager}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointThread.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointThread.java
index 3eb87bc..a934d6c 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointThread.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointThread.java
@@ -2,7 +2,8 @@
 
 import java.util.List;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.IRecoveryManager;
 import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndex;
 import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManager;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
index 47c5dcb..50d4625 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
@@ -34,23 +34,25 @@
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.common.transactions.IBuffer;
+import edu.uci.ics.asterix.common.transactions.ILogCursor;
+import edu.uci.ics.asterix.common.transactions.ILogFilter;
+import edu.uci.ics.asterix.common.transactions.ILogManager;
+import edu.uci.ics.asterix.common.transactions.ILogRecordHelper;
+import edu.uci.ics.asterix.common.transactions.IRecoveryManager;
+import edu.uci.ics.asterix.common.transactions.IResourceManager;
+import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
+import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
 import edu.uci.ics.asterix.transaction.management.resource.ILocalResourceMetadata;
-import edu.uci.ics.asterix.transaction.management.service.logging.IBuffer;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogCursor;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogFilter;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogRecordHelper;
 import edu.uci.ics.asterix.transaction.management.service.logging.IndexResourceManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.logging.PhysicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManagementConstants;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionManager;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
@@ -611,7 +613,7 @@
      * @see edu.uci.ics.transaction.management.service.recovery.IRecoveryManager# rollbackTransaction (edu.uci.ics.TransactionContext.management.service.transaction .TransactionContext)
      */
     @Override
-    public void rollbackTransaction(TransactionContext txnContext) throws ACIDException {
+    public void rollbackTransaction(ITransactionContext txnContext) throws ACIDException {
         ILogManager logManager = txnSubsystem.getLogManager();
         ILogRecordHelper logRecordHelper = logManager.getLogRecordHelper();
         Map<TxnId, List<Long>> loserTxnTable = new HashMap<TxnId, List<Long>>();
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/TransactionTableEntry.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/TransactionTableEntry.java
index 9bfcc8f..15e21bc 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/TransactionTableEntry.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/TransactionTableEntry.java
@@ -14,8 +14,8 @@
  */
 package edu.uci.ics.asterix.transaction.management.service.recovery;
 
-import edu.uci.ics.asterix.transaction.management.service.logging.PhysicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager;
+import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
 
 /**
  * Represents a bookkeeping data-structure that is populated duing the analysis
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixRuntimeComponentsProvider.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/AsterixRuntimeComponentsProvider.java
similarity index 75%
rename from asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixRuntimeComponentsProvider.java
rename to asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/AsterixRuntimeComponentsProvider.java
index fad0a38..2b3d6cd 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/AsterixRuntimeComponentsProvider.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/AsterixRuntimeComponentsProvider.java
@@ -1,5 +1,7 @@
-package edu.uci.ics.asterix.common.context;
+package edu.uci.ics.asterix.transaction.management.service.transaction;
 
+import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
+import edu.uci.ics.asterix.common.api.IAsterixRuntimeComponentsProvider;
 import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMBTreeIOOperationCallbackFactory;
 import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMInvertedIndexIOOperationCallbackFactory;
 import edu.uci.ics.asterix.transaction.management.ioopcallbacks.LSMRTreeIOOperationCallbackFactory;
@@ -23,9 +25,9 @@
 import edu.uci.ics.hyracks.storage.common.file.ILocalResourceRepository;
 import edu.uci.ics.hyracks.storage.common.file.ResourceIdFactory;
 
-public class AsterixRuntimeComponentsProvider implements IIndexLifecycleManagerProvider, IStorageManagerInterface,
-        ILSMIOOperationSchedulerProvider, ILSMMergePolicyProvider, ILSMOperationTrackerFactory,
-        ILSMIOOperationCallbackProvider {
+public class AsterixRuntimeComponentsProvider implements 
+        IIndexLifecycleManagerProvider, IStorageManagerInterface, ILSMIOOperationSchedulerProvider,
+        ILSMMergePolicyProvider, ILSMOperationTrackerFactory, ILSMIOOperationCallbackProvider {
     private static final long serialVersionUID = 1L;
 
     private final ILSMIOOperationCallbackFactory ioOpCallbackFactory;
@@ -54,43 +56,45 @@
 
     @Override
     public ILSMIOOperationScheduler getIOScheduler(IHyracksTaskContext ctx) {
-        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+        return ((IAsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
                 .getLSMIOScheduler();
     }
 
     @Override
     public ILSMMergePolicy getMergePolicy(IHyracksTaskContext ctx) {
-        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+        return ((IAsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
                 .getLSMMergePolicy();
     }
 
     @Override
     public IBufferCache getBufferCache(IHyracksTaskContext ctx) {
-        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+        return ((IAsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
                 .getBufferCache();
     }
 
     @Override
     public IFileMapProvider getFileMapProvider(IHyracksTaskContext ctx) {
-        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+        return ((IAsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
                 .getFileMapManager();
     }
 
     @Override
     public ILocalResourceRepository getLocalResourceRepository(IHyracksTaskContext ctx) {
-        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+        return ((IAsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
                 .getLocalResourceRepository();
     }
 
     @Override
     public IIndexLifecycleManager getLifecycleManager(IHyracksTaskContext ctx) {
-        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+        return ((IAsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
                 .getIndexLifecycleManager();
     }
 
     @Override
     public ResourceIdFactory getResourceIdFactory(IHyracksTaskContext ctx) {
-        return ((AsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
+        return ((IAsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext().getApplicationObject())
                 .getResourceIdFactory();
     }
+
+  
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java
index cac4f8e..8f9fa79 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java
@@ -16,6 +16,8 @@
 
 import java.util.concurrent.atomic.AtomicInteger;
 
+import edu.uci.ics.asterix.common.transactions.JobId;
+
 /**
  * Represents a factory to generate unique transaction IDs.
  */
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
index 5b01edf..2659d8f 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
@@ -19,15 +19,16 @@
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
-import java.util.concurrent.atomic.AtomicInteger;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.opcallbacks.AbstractOperationCallback;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.AbstractOperationCallback;
+import edu.uci.ics.asterix.common.transactions.ICloseable;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager.TransactionState;
+import edu.uci.ics.asterix.common.transactions.JobId;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.opcallbacks.IndexOperationTracker;
-import edu.uci.ics.asterix.transaction.management.resource.ICloseable;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager.TransactionState;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.storage.am.common.api.IModificationOperationCallback;
 import edu.uci.ics.hyracks.storage.am.lsm.common.api.ILSMIndex;
@@ -40,17 +41,7 @@
  * initiate an operation on the behalf of the transaction associated with the
  * context.
  */
-public class TransactionContext implements Serializable {
-
-    public static final long INVALID_TIME = -1l; // used for showing a
-    // transaction is not waiting.
-    public static final int ACTIVE_STATUS = 0;
-    public static final int TIMED_OUT_STATUS = 1;
-
-    public enum TransactionType {
-        READ,
-        READ_WRITE
-    }
+public class TransactionContext implements ITransactionContext, Serializable {
 
     private static final long serialVersionUID = -6105616785783310111L;
     private TransactionSubsystem transactionSubsystem;
@@ -170,7 +161,7 @@
             closeable.close(this);
         }
     }
-    
+
     @Override
     public int hashCode() {
         return jobId.getId();
@@ -180,4 +171,6 @@
     public boolean equals(Object o) {
         return (o == this);
     }
+
+  
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManager.java
index d3294d0..4e8808f 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionManager.java
@@ -20,9 +20,12 @@
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager;
+import edu.uci.ics.asterix.common.transactions.JobId;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
-import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
 /**
  * An implementation of the @see ITransactionManager interface that provides
@@ -31,7 +34,7 @@
 public class TransactionManager implements ITransactionManager {
     private static final Logger LOGGER = Logger.getLogger(TransactionManager.class.getName());
     private final TransactionSubsystem transactionProvider;
-    private Map<JobId, TransactionContext> transactionContextRepository = new HashMap<JobId, TransactionContext>();
+    private Map<JobId, ITransactionContext> ITransactionContextRepository = new HashMap<JobId, ITransactionContext>();
     private AtomicInteger maxJobId = new AtomicInteger(0);
 
     public TransactionManager(TransactionSubsystem provider) {
@@ -39,7 +42,7 @@
     }
 
     @Override
-    public void abortTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal)
+    public void abortTransaction(ITransactionContext txnContext, DatasetId datasetId, int PKHashVal)
             throws ACIDException {
         synchronized (txnContext) {
             if (txnContext.getTxnState().equals(TransactionState.ABORTED)) {
@@ -58,39 +61,39 @@
             } finally {
                 txnContext.releaseResources();
                 transactionProvider.getLockManager().releaseLocks(txnContext);
-                transactionContextRepository.remove(txnContext.getJobId());
+                ITransactionContextRepository.remove(txnContext.getJobId());
                 txnContext.setTxnState(TransactionState.ABORTED);
             }
         }
     }
 
     @Override
-    public TransactionContext beginTransaction(JobId jobId) throws ACIDException {
+    public ITransactionContext beginTransaction(JobId jobId) throws ACIDException {
         setMaxJobId(jobId.getId());
-        TransactionContext txnContext = new TransactionContext(jobId, transactionProvider);
+        ITransactionContext txnContext = new TransactionContext(jobId, transactionProvider);
         synchronized (this) {
-            transactionContextRepository.put(jobId, txnContext);
+            ITransactionContextRepository.put(jobId, txnContext);
         }
         return txnContext;
     }
 
     @Override
-    public TransactionContext getTransactionContext(JobId jobId) throws ACIDException {
+    public ITransactionContext getTransactionContext(JobId jobId) throws ACIDException {
         setMaxJobId(jobId.getId());
-        synchronized (transactionContextRepository) {
+        synchronized (ITransactionContextRepository) {
 
-            TransactionContext context = transactionContextRepository.get(jobId);
+            ITransactionContext context = ITransactionContextRepository.get(jobId);
             if (context == null) {
-                context = transactionContextRepository.get(jobId);
+                context = ITransactionContextRepository.get(jobId);
                 context = new TransactionContext(jobId, transactionProvider);
-                transactionContextRepository.put(jobId, context);
+                ITransactionContextRepository.put(jobId, context);
             }
             return context;
         }
     }
 
     @Override
-    public void commitTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal)
+    public void commitTransaction(ITransactionContext txnContext, DatasetId datasetId, int PKHashVal)
             throws ACIDException {
         synchronized (txnContext) {
             if ((txnContext.getTxnState().equals(TransactionState.COMMITTED))) {
@@ -116,7 +119,7 @@
 
             //for job-level commit
             try {
-                if (txnContext.getTransactionType().equals(TransactionContext.TransactionType.READ_WRITE)) {
+                if (txnContext.getTransactionType().equals(ITransactionContext.TransactionType.READ_WRITE)) {
                     transactionProvider.getLogManager().log(LogType.COMMIT, txnContext, -1, -1, -1, (byte) 0, 0, null,
                             null, txnContext.getLastLogLocator());
                 }
@@ -128,14 +131,14 @@
             } finally {
                 txnContext.releaseResources();
                 transactionProvider.getLockManager().releaseLocks(txnContext); // release
-                transactionContextRepository.remove(txnContext.getJobId());
+                ITransactionContextRepository.remove(txnContext.getJobId());
                 txnContext.setTxnState(TransactionState.COMMITTED);
             }
         }
     }
 
     @Override
-    public void completedTransaction(TransactionContext txnContext, DatasetId datasetId, int PKHashVal, boolean success)
+    public void completedTransaction(ITransactionContext txnContext, DatasetId datasetId, int PKHashVal, boolean success)
             throws ACIDException {
         if (!success) {
             abortTransaction(txnContext, datasetId, PKHashVal);
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionSubsystem.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionSubsystem.java
index c83b7bc..eb6e9a2 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionSubsystem.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionSubsystem.java
@@ -14,23 +14,25 @@
  */
 package edu.uci.ics.asterix.transaction.management.service.transaction;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.resource.TransactionalResourceManagerRepository;
-import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.IAsterixAppRuntimeContextProvider;
+import edu.uci.ics.asterix.common.transactions.ILockManager;
+import edu.uci.ics.asterix.common.transactions.ILogManager;
+import edu.uci.ics.asterix.common.transactions.IRecoveryManager;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.asterix.common.transactions.TransactionalResourceManagerRepository;
 import edu.uci.ics.asterix.transaction.management.service.locking.LockManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogManager;
 import edu.uci.ics.asterix.transaction.management.service.logging.IndexLoggerRepository;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogManager;
 import edu.uci.ics.asterix.transaction.management.service.recovery.CheckpointThread;
-import edu.uci.ics.asterix.transaction.management.service.recovery.IAsterixAppRuntimeContextProvider;
-import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager;
 import edu.uci.ics.asterix.transaction.management.service.recovery.RecoveryManager;
 
 /**
  * Provider for all the sub-systems (transaction/lock/log/recovery) managers.
  * Users of transaction sub-systems must obtain them from the provider.
  */
-public class TransactionSubsystem {
+public class TransactionSubsystem implements ITransactionSubsystem {
     private final String id;
     private final ILogManager logManager;
     private final ILockManager lockManager;
@@ -52,10 +54,10 @@
         this.resourceRepository = new TransactionalResourceManagerRepository();
         this.asterixAppRuntimeContextProvider = asterixAppRuntimeContextProvider;
         if (asterixAppRuntimeContextProvider != null) {
-	        this.checkpointThread = new CheckpointThread(recoveryManager,
-	                asterixAppRuntimeContextProvider.getIndexLifecycleManager(), 0);
+            this.checkpointThread = new CheckpointThread(recoveryManager,
+                    asterixAppRuntimeContextProvider.getIndexLifecycleManager(), 0);
         } else {
-        	this.checkpointThread = null;
+            this.checkpointThread = null;
         }
     }
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionSubsystemProvider.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionSubsystemProvider.java
new file mode 100644
index 0000000..ab89ef4
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionSubsystemProvider.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.asterix.transaction.management.service.transaction;
+
+import edu.uci.ics.asterix.common.api.IAsterixAppRuntimeContext;
+import edu.uci.ics.asterix.common.context.ITransactionSubsystemProvider;
+import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+
+/**
+ * The purpose of this provider is to work around a cyclic dependency between asterix-common and asterix-transactions.
+ * The operation callbacks would depend on the AsterixAppRuntimeContext to get the transaction subsystem,
+ * while at the same time the AsterixAppRuntimeContext depends on asterix-transactions for the TransactionSubsystem.
+ */
+public class TransactionSubsystemProvider implements ITransactionSubsystemProvider {
+    @Override
+    public ITransactionSubsystem getTransactionSubsystem(IHyracksTaskContext ctx) {
+        IAsterixAppRuntimeContext runtimeCtx = (IAsterixAppRuntimeContext) ctx.getJobletContext()
+                .getApplicationContext().getApplicationObject();
+        return runtimeCtx.getTransactionSubsystem();
+    }
+}
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/BasicLogger.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/BasicLogger.java
index c9d01a0..076227b 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/BasicLogger.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/BasicLogger.java
@@ -16,19 +16,19 @@
 
 import java.util.Random;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.logging.IBuffer;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogger;
-import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger.ReusableLogContentObject;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.IBuffer;
+import edu.uci.ics.asterix.common.transactions.ILogger;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
+import edu.uci.ics.asterix.common.transactions.ReusableLogContentObject;
 
 public class BasicLogger implements ILogger {
 
     private static long averageContentCreationTime = 0;
     private static long count = 0;
 
-    public void log(TransactionContext context, LogicalLogLocator wMemLSN, int length,
+    public void log(ITransactionContext context, LogicalLogLocator wMemLSN, int length,
             ReusableLogContentObject reusableLogContentObject) throws ACIDException {
 
         byte[] logContent = getRandomBytes(length);
@@ -66,12 +66,12 @@
         return averageContentCreationTime;
     }
 
-    public void postLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
+    public void postLog(ITransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         // TODO Auto-generated method stub
 
     }
 
-    public void preLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
+    public void preLog(ITransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         // TODO Auto-generated method stub
 
     }
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/IResource.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/IResource.java
index fbc44da..a0e0980 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/IResource.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/IResource.java
@@ -14,7 +14,7 @@
  */
 package edu.uci.ics.asterix.transaction.management.logging;
 
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogger;
+import edu.uci.ics.asterix.common.transactions.ILogger;
 
 public interface IResource {
 
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/RecoverySimulator.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/RecoverySimulator.java
index 54ec036..07f7474 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/RecoverySimulator.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/RecoverySimulator.java
@@ -16,8 +16,8 @@
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.IRecoveryManager;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
 public class RecoverySimulator {
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java
index dcd644d..8f56e3b 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/logging/test/TransactionWorkloadSimulator.java
@@ -18,18 +18,18 @@
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicLong;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
+import edu.uci.ics.asterix.common.transactions.ILockManager;
+import edu.uci.ics.asterix.common.transactions.ILogManager;
+import edu.uci.ics.asterix.common.transactions.ILogRecordHelper;
+import edu.uci.ics.asterix.common.transactions.IResourceManager;
+import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.logging.BasicLogger;
-import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogRecordHelper;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogActionType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
 import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileLogger.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileLogger.java
index 54bb0b8..3b251bc 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileLogger.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileLogger.java
@@ -15,12 +15,12 @@
 package edu.uci.ics.asterix.transaction.management.test;
 
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.ILogger;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
+import edu.uci.ics.asterix.common.transactions.ReusableLogContentObject;
 import edu.uci.ics.asterix.transaction.management.logging.IResource;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogger;
-import edu.uci.ics.asterix.transaction.management.service.logging.IndexLogger.ReusableLogContentObject;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 
 class FileLogger implements ILogger {
 
@@ -39,13 +39,13 @@
     }
 
     @Override
-    public void preLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
+    public void preLog(ITransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         // TODO Auto-generated method stub
 
     }
 
     @Override
-    public void log(TransactionContext context, final LogicalLogLocator memLSN, int logContentSize,
+    public void log(ITransactionContext context, final LogicalLogLocator memLSN, int logContentSize,
             ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         byte[] buffer = memLSN.getBuffer().getArray();
         byte[] content = logRecordContent.getBytes();
@@ -58,7 +58,7 @@
     }
 
     @Override
-    public void postLog(TransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
+    public void postLog(ITransactionContext context, ReusableLogContentObject reusableLogContentObject) throws ACIDException {
         // TODO Auto-generated method stub
 
     }
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileResource.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileResource.java
index bc1a6f0..fc1eb86 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileResource.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileResource.java
@@ -21,9 +21,9 @@
 import java.io.FileWriter;
 import java.io.IOException;
 
+import edu.uci.ics.asterix.common.transactions.FileUtil;
+import edu.uci.ics.asterix.common.transactions.ILogger;
 import edu.uci.ics.asterix.transaction.management.logging.IResource;
-import edu.uci.ics.asterix.transaction.management.service.logging.FileUtil;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogger;
 
 class FileResource implements IResource {
 
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileResourceManager.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileResourceManager.java
index 6014003..f47b1df 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileResourceManager.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/FileResourceManager.java
@@ -17,11 +17,11 @@
 import java.util.HashMap;
 import java.util.Map;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.ILogRecordHelper;
+import edu.uci.ics.asterix.common.transactions.IResourceManager;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.logging.IResource;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogRecordHelper;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
 
 class FileResourceManager implements IResourceManager {
 
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java
index ad1238a..1aa8454 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/LogRecordReader.java
@@ -15,19 +15,17 @@
 package edu.uci.ics.asterix.transaction.management.test;
 
 import java.io.IOException;
-import java.util.Properties;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.asterix.transaction.management.service.logging.IBuffer;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogCursor;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogFilter;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogRecordHelper;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.IBuffer;
+import edu.uci.ics.asterix.common.transactions.ILogCursor;
+import edu.uci.ics.asterix.common.transactions.ILogFilter;
+import edu.uci.ics.asterix.common.transactions.ILogManager;
+import edu.uci.ics.asterix.common.transactions.ILogRecordHelper;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
+import edu.uci.ics.asterix.common.transactions.PhysicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogManagerProperties;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.logging.PhysicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
 public class LogRecordReader {
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionRecoverySimulator.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionRecoverySimulator.java
index 2bd277c..ccd83eb 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionRecoverySimulator.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionRecoverySimulator.java
@@ -14,7 +14,7 @@
  */
 package edu.uci.ics.asterix.transaction.management.test;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
 
 public class TransactionRecoverySimulator {
 
diff --git a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java
index 092f2ed..66e9bdf 100644
--- a/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java
+++ b/asterix-transactions/src/test/java/edu/uci/ics/asterix/transaction/management/test/TransactionSimulator.java
@@ -17,23 +17,22 @@
 import java.io.IOException;
 import java.util.Random;
 
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
+import edu.uci.ics.asterix.common.exceptions.ACIDException;
+import edu.uci.ics.asterix.common.transactions.DatasetId;
+import edu.uci.ics.asterix.common.transactions.ILockManager;
+import edu.uci.ics.asterix.common.transactions.ILogManager;
+import edu.uci.ics.asterix.common.transactions.ILogger;
+import edu.uci.ics.asterix.common.transactions.IRecoveryManager;
+import edu.uci.ics.asterix.common.transactions.IResourceManager;
+import edu.uci.ics.asterix.common.transactions.IResourceManager.ResourceType;
+import edu.uci.ics.asterix.common.transactions.ITransactionContext;
+import edu.uci.ics.asterix.common.transactions.ITransactionManager;
+import edu.uci.ics.asterix.common.transactions.JobId;
+import edu.uci.ics.asterix.common.transactions.LogicalLogLocator;
 import edu.uci.ics.asterix.transaction.management.logging.IResource;
-import edu.uci.ics.asterix.transaction.management.service.locking.ILockManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogManager;
-import edu.uci.ics.asterix.transaction.management.service.logging.ILogger;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogType;
 import edu.uci.ics.asterix.transaction.management.service.logging.LogUtil;
-import edu.uci.ics.asterix.transaction.management.service.logging.LogicalLogLocator;
-import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager;
-import edu.uci.ics.asterix.transaction.management.service.recovery.IRecoveryManager.SystemState;
-import edu.uci.ics.asterix.transaction.management.service.transaction.DatasetId;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.IResourceManager.ResourceType;
-import edu.uci.ics.asterix.transaction.management.service.transaction.ITransactionManager;
-import edu.uci.ics.asterix.transaction.management.service.transaction.JobId;
 import edu.uci.ics.asterix.transaction.management.service.transaction.JobIdFactory;
-import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionSubsystem;
 
 public class TransactionSimulator {
@@ -63,12 +62,12 @@
         memLSN = LogUtil.getDummyLogicalLogLocator(transactionProvider.getLogManager());
     }
 
-    public TransactionContext beginTransaction() throws ACIDException {
+    public ITransactionContext beginTransaction() throws ACIDException {
         JobId jobId = JobIdFactory.generateJobId();
         return transactionManager.beginTransaction(jobId);
     }
 
-    public void executeTransactionOperation(TransactionContext txnContext, FileResource.CounterOperation operation)
+    public void executeTransactionOperation(ITransactionContext txnContext, FileResource.CounterOperation operation)
             throws ACIDException {
         // lockManager.lock(txnContext, resourceId, 0);
         ILogManager logManager = transactionProvider.getLogManager();
@@ -91,7 +90,7 @@
 
     }
 
-    public void commitTransaction(TransactionContext context) throws ACIDException {
+    public void commitTransaction(ITransactionContext context) throws ACIDException {
         transactionManager.commitTransaction(context, new DatasetId(-1), -1);
     }
 
@@ -116,7 +115,7 @@
         Schedule schedule = new Schedule(numTransactions);
 
         for (int i = 0; i < numTransactions; i++) {
-            TransactionContext context = txnSimulator.beginTransaction();
+            ITransactionContext context = txnSimulator.beginTransaction();
             txnSimulator.executeTransactionOperation(context, schedule.getOperations()[i]);
             if (schedule.getWillCommit()[i]) {
                 txnSimulator.commitTransaction(context);
diff --git a/pom.xml b/pom.xml
index f4c46c6..aa0bc82 100644
--- a/pom.xml
+++ b/pom.xml
@@ -135,14 +135,6 @@
 			<url>http://obelix.ics.uci.edu/nexus/content/repositories/algebricks-snapshots/</url>
 		</repository>
 	</repositories>
-    <dependencies>
-        <dependency>
-            <groupId>net.sourceforge.cobertura</groupId>
-            <artifactId>cobertura</artifactId>
-            <version>1.9.4</version>
-            <optional>true</optional>
-        </dependency>
-    </dependencies>
         <dependencyManagement>
     	<dependencies>
     		<dependency>
@@ -232,6 +224,18 @@
 			<artifactId>hyracks-storage-am-lsm-invertedindex</artifactId>
 			<version>${hyracks.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>org.json</groupId>
+			<artifactId>json</artifactId>
+			<version>20090211</version>
+			<type>jar</type>
+		</dependency>
+		<dependency>
+			<groupId>javax.servlet</groupId>
+			<artifactId>servlet-api</artifactId>
+			<version>2.5</version>
+			<type>jar</type>
+		</dependency>
     	</dependencies>
     </dependencyManagement>
 </project>