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 e07c1d0..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;
@@ -92,10 +91,10 @@
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
-import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions.FunctionNamespace;
 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;
@@ -507,14 +506,10 @@
         if (builtinAquafi != null) {
             fi = builtinAquafi;
         } else {
-            fi = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(), functionName, arity);
+            fi = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, functionName, arity);
             afi = AsterixBuiltinFunctions.lookupFunction(fi);
             if (afi == null) {
-                fi = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(), functionName, arity);
-                afi = AsterixBuiltinFunctions.lookupFunction(fi);
-                if (afi == null) {
-                    return null;
-                }
+                return null;
             }
         }
         if (AsterixBuiltinFunctions.isBuiltinAggregateFunction(fi)) {
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 92add99..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;
@@ -89,12 +90,10 @@
 import edu.uci.ics.asterix.om.base.AString;
 import edu.uci.ics.asterix.om.constants.AsterixConstantValue;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
-import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions.FunctionNamespace;
 import edu.uci.ics.asterix.om.functions.AsterixFunctionInfo;
 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;
@@ -465,14 +464,10 @@
         if (builtinAquafi != null) {
             fi = builtinAquafi;
         } else {
-            fi = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(), signature.getName());
+            fi = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, signature.getName());
             FunctionIdentifier builtinAsterixFi = AsterixBuiltinFunctions.getBuiltinFunctionIdentifier(fi);
             if (builtinAsterixFi != null) {
                 fi = builtinAsterixFi;
-            } else {
-                fi = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(), signature.getName());
-                builtinAsterixFi = AsterixBuiltinFunctions.getBuiltinFunctionIdentifier(fi);
-                fi = builtinAsterixFi;
             }
         }
         AbstractFunctionCallExpression f;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java
index a91f2eb..49e2ed6 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/CompiledStatements.java
@@ -35,6 +35,7 @@
 import edu.uci.ics.asterix.aql.expression.WhereClause;
 import edu.uci.ics.asterix.aql.literal.StringLiteral;
 import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
@@ -496,7 +497,7 @@
             arguments.add(argumentLiteral);
 
             CallExpr callExpression = new CallExpr(new FunctionSignature(
-                    AsterixBuiltinFunctions.FunctionNamespace.ASTERIX_PUBLIC.name(), "dataset", 1), arguments);
+                    FunctionConstants.ASTERIX_NS, "dataset", 1), arguments);
             List<Clause> clauseList = new ArrayList<Clause>();
             Clause forClause = new ForClause(var, callExpression);
             clauseList.add(forClause);
diff --git a/asterix-app/data/tinysocial/fbm.adm b/asterix-app/data/tinysocial/fbm.adm
new file mode 100644
index 0000000..58d7f08
--- /dev/null
+++ b/asterix-app/data/tinysocial/fbm.adm
@@ -0,0 +1,15 @@
+{"message-id":1,"author-id":3,"in-response-to":2,"sender-location":point("47.16,77.75"),"message":" love sprint its shortcut-menu is awesome:)"}
+{"message-id":2,"author-id":1,"in-response-to":4,"sender-location":point("41.66,80.87"),"message":" dislike iphone its touch-screen is horrible"}
+{"message-id":3,"author-id":2,"in-response-to":4,"sender-location":point("48.09,81.01"),"message":" like samsung the plan is amazing"}
+{"message-id":4,"author-id":1,"in-response-to":2,"sender-location":point("37.73,97.04"),"message":" can't stand at&t the network is horrible:("}
+{"message-id":5,"author-id":6,"in-response-to":2,"sender-location":point("34.7,90.76"),"message":" love sprint the customization is mind-blowing"}
+{"message-id":6,"author-id":2,"in-response-to":1,"sender-location":point("31.5,75.56"),"message":" like t-mobile its platform is mind-blowing"}
+{"message-id":7,"author-id":5,"in-response-to":15,"sender-location":point("32.91,85.05"),"message":" dislike sprint the speed is horrible"}
+{"message-id":8,"author-id":1,"in-response-to":11,"sender-location":point("40.33,80.87"),"message":" like verizon the 3G is awesome:)"}
+{"message-id":9,"author-id":3,"in-response-to":12,"sender-location":point("34.45,96.48"),"message":" love verizon its wireless is good"}
+{"message-id":10,"author-id":1,"in-response-to":12,"sender-location":point("42.5,70.01"),"message":" can't stand motorola the touch-screen is terrible"}
+{"message-id":11,"author-id":1,"in-response-to":1,"sender-location":point("38.97,77.49"),"message":" can't stand at&t its plan is terrible"}
+{"message-id":12,"author-id":10,"in-response-to":6,"sender-location":point("42.26,77.76"),"message":" can't stand t-mobile its voicemail-service is OMG:("}
+{"message-id":13,"author-id":10,"in-response-to":4,"sender-location":point("42.77,78.92"),"message":" dislike iphone the voice-command is bad:("}
+{"message-id":14,"author-id":9,"in-response-to":12,"sender-location":point("41.33,85.28"),"message":" love at&t its 3G is good:)"}
+{"message-id":15,"author-id":7,"in-response-to":11,"sender-location":point("44.47,67.11"),"message":" like iphone the voicemail-service is awesome"}
diff --git a/asterix-app/data/tinysocial/fbu.adm b/asterix-app/data/tinysocial/fbu.adm
new file mode 100644
index 0000000..7e99ea4
--- /dev/null
+++ b/asterix-app/data/tinysocial/fbu.adm
@@ -0,0 +1,10 @@
+{"id":1,"alias":"Margarita","name":"MargaritaStoddard","user-since":datetime("2012-08-20T10:10:00"),"friend-ids":{{2,3,6,10}},"employment":[{"organization-name":"Codetechno","start-date":date("2006-08-06")}]}
+{"id":2,"alias":"Isbel","name":"IsbelDull","user-since":datetime("2011-01-22T10:10:00"),"friend-ids":{{1,4}},"employment":[{"organization-name":"Hexviafind","start-date":date("2010-04-27")}]}
+{"id":3,"alias":"Emory","name":"EmoryUnk","user-since":datetime("2012-07-10T10:10:00"),"friend-ids":{{1,5,8,9}},"employment":[{"organization-name":"geomedia","start-date":date("2010-06-17"),"end-date":date("2010-01-26")}]}
+{"id":4,"alias":"Nicholas","name":"NicholasStroh","user-since":datetime("2010-12-27T10:10:00"),"friend-ids":{{2}},"employment":[{"organization-name":"Zamcorporation","start-date":date("2010-06-08")}]}
+{"id":5,"alias":"Von","name":"VonKemble","user-since":datetime("2010-01-05T10:10:00"),"friend-ids":{{3,6,10}},"employment":[{"organization-name":"Kongreen","start-date":date("2010-11-27")}]}
+{"id":6,"alias":"Willis","name":"WillisWynne","user-since":datetime("2005-01-17T10:10:00"),"friend-ids":{{1,3,7}},"employment":[{"organization-name":"jaydax","start-date":date("2009-05-15")}]}
+{"id":7,"alias":"Suzanna","name":"SuzannaTillson","user-since":datetime("2012-08-07T10:10:00"),"friend-ids":{{6}},"employment":[{"organization-name":"Labzatron","start-date":date("2011-04-19")}]}
+{"id":8,"alias":"Nila","name":"NilaMilliron","user-since":datetime("2008-01-01T10:10:00"),"friend-ids":{{3}},"employment":[{"organization-name":"Plexlane","start-date":date("2010-02-28")}]}
+{"id":9,"alias":"Woodrow","name":"WoodrowNehling","user-since":datetime("2005-09-20T10:10:00"),"friend-ids":{{3,10}},"employment":[{"organization-name":"Zuncan","start-date":date("2003-04-22"),"end-date":date("2009-12-13")}]}
+{"id":10,"alias":"Bram","name":"BramHatch","user-since":datetime("2010-10-16T10:10:00"),"friend-ids":{{1,5,9}},"employment":[{"organization-name":"physcane","start-date":date("2007-06-05"),"end-date":date("2011-11-05")}]}
diff --git a/asterix-app/data/tinysocial/twm.adm b/asterix-app/data/tinysocial/twm.adm
new file mode 100644
index 0000000..fa764af
--- /dev/null
+++ b/asterix-app/data/tinysocial/twm.adm
@@ -0,0 +1,12 @@
+{"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"),"referred-topics":{{"t-mobile","customization"}},"message-text":" love t-mobile its customization is good:)"}
+{"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"),"referred-topics":{{"verizon","shortcut-menu"}},"message-text":" like verizon its shortcut-menu is awesome:)"}
+{"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"),"referred-topics":{{"motorola","speed"}},"message-text":" like motorola the speed is good:)"}
+{"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"),"referred-topics":{{"sprint","voice-command"}},"message-text":" like sprint the voice-command is mind-blowing:)"}
+{"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"),"referred-topics":{{"motorola","speed"}},"message-text":" can't stand motorola its speed is terrible:("}
+{"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"),"referred-topics":{{"iphone","voice-clarity"}},"message-text":" like iphone the voice-clarity is good:)"}
+{"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"),"referred-topics":{{"samsung","platform"}},"message-text":" like samsung the platform is good"}
+{"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"),"referred-topics":{{"t-mobile","shortcut-menu"}},"message-text":" like t-mobile the shortcut-menu is awesome:)"}
+{"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"),"referred-topics":{{"verizon","voicemail-service"}},"message-text":" love verizon its voicemail-service is awesome"}
+{"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"),"referred-topics":{{"verizon","voice-clarity"}},"message-text":" hate verizon its voice-clarity is OMG:("}
+{"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"),"referred-topics":{{"iphone","platform"}},"message-text":" can't stand iphone its platform is terrible"}
+{"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"),"referred-topics":{{"samsung","voice-command"}},"message-text":" like samsung the voice-command is amazing:)"}
diff --git a/asterix-app/data/tinysocial/twu.adm b/asterix-app/data/tinysocial/twu.adm
new file mode 100644
index 0000000..32a1917
--- /dev/null
+++ b/asterix-app/data/tinysocial/twu.adm
@@ -0,0 +1,4 @@
+{"screen-name":"NathanGiesen@211","lang":"en","friends_count":18,"statuses_count":473,"name":"Nathan Giesen","followers_count":49416}
+{"screen-name":"ColineGeyer@63","lang":"en","friends_count":121,"statuses_count":362,"name":"Coline Geyer","followers_count":17159}
+{"screen-name":"NilaMilliron_tw","lang":"en","friends_count":445,"statuses_count":164,"name":"Nila Milliron","followers_count":22649}
+{"screen-name":"ChangEwing_573","lang":"en","friends_count":182,"statuses_count":394,"name":"Chang Ewing","followers_count":32136}
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 6f5325d..48737c7 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 72d742d..c7954d8 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
@@ -29,6 +29,7 @@
 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;
@@ -86,6 +87,7 @@
             duration = (endTime - startTime) / 1000.00;
             out.println("<PRE>Duration of all jobs: " + duration + " sec</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");
@@ -105,9 +107,10 @@
             }
             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 5655e35..41be278 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);
@@ -1464,6 +1430,7 @@
 
             return queryResult;
         } catch (Exception e) {
+            e.printStackTrace();
             if (bActiveTxn) {
                 abort(e, e, mdTxnCtx);
             }
@@ -1536,6 +1503,23 @@
         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/metadata/queries/basic/issue_363_temporal_sec_key_0/issue_363_temporal_sec_key_0.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_0/issue_363_temporal_sec_key_0.1.ddl.aql
new file mode 100644
index 0000000..73d63c9
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_0/issue_363_temporal_sec_key_0.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : create a dataset using year-month-duration for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as open {
+id:year-month-duration,
+dur:year-month-duration,
+name:string
+}
+
+create dataset Employee(Emp) primary key id;
+create index TestSecondIndex on Employee(dur);
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_0/issue_363_temporal_sec_key_0.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_0/issue_363_temporal_sec_key_0.2.update.aql
new file mode 100644
index 0000000..bd96595
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_0/issue_363_temporal_sec_key_0.2.update.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset using year-month-duration for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+use dataverse test;
+
+insert into dataset Employee({"id":year-month-duration("P16Y"), "dur":year-month-duration("-P23Y"), "name": "John"})
+insert into dataset Employee({"id":year-month-duration("-P37M"), "dur":year-month-duration("P1Y48M"), "name": "Alex"})
+insert into dataset Employee({"id":year-month-duration("P2013Y"), "dur":year-month-duration("P7M"), "name": "Bob"})
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_0/issue_363_temporal_sec_key_0.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_0/issue_363_temporal_sec_key_0.3.query.aql
new file mode 100644
index 0000000..8244c6d
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_0/issue_363_temporal_sec_key_0.3.query.aql
@@ -0,0 +1,13 @@
+/*
+ * Description  : create a dataset using year-month-duration for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+use dataverse test;
+
+for $x in dataset('Employee')
+where $x.dur > year-month-duration("P1Y")
+return $x
+
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_1/issue_363_temporal_sec_key_1.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_1/issue_363_temporal_sec_key_1.1.ddl.aql
new file mode 100644
index 0000000..9697c32
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_1/issue_363_temporal_sec_key_1.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : create a dataset using datetime for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as open {
+id:datetime,
+dt:datetime,
+name:string
+}
+
+create dataset Employee(Emp) primary key id;
+create index TestSecondIndex on Employee(dt);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_1/issue_363_temporal_sec_key_1.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_1/issue_363_temporal_sec_key_1.2.update.aql
new file mode 100644
index 0000000..d66da92
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_1/issue_363_temporal_sec_key_1.2.update.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset using datetime for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+use dataverse test;
+
+insert into dataset Employee({"id":datetime("1900-01-01T00:00:00"), "dt":datetime("1900-01-01T00:00:00"), "name": "John"})
+insert into dataset Employee({"id":datetime("2000-01-01T00:00:00"), "dt":datetime("2000-01-01T00:00:00"), "name": "Alex"})
+insert into dataset Employee({"id":datetime("2013-01-01T00:00:00"), "dt":datetime("2013-01-01T00:00:00"), "name": "Bob"})
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_1/issue_363_temporal_sec_key_1.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_1/issue_363_temporal_sec_key_1.3.query.aql
new file mode 100644
index 0000000..eb92aea
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_1/issue_363_temporal_sec_key_1.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset using datetime for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+use dataverse test;
+
+for $x in dataset('Employee')
+where $x.dt > datetime("2007-07-07T07:07:07.777Z")
+return $x
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_2/issue_363_temporal_sec_key_2.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_2/issue_363_temporal_sec_key_2.1.ddl.aql
new file mode 100644
index 0000000..d3c19f4
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_2/issue_363_temporal_sec_key_2.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : create a dataset using time for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as open {
+id:time,
+tm:time,
+name:string
+}
+
+create dataset Employee(Emp) primary key id;
+create index TestSecondIndex on Employee(tm);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_2/issue_363_temporal_sec_key_2.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_2/issue_363_temporal_sec_key_2.2.update.aql
new file mode 100644
index 0000000..6f44d6c
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_2/issue_363_temporal_sec_key_2.2.update.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset using time for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+use dataverse test;
+
+insert into dataset Employee({"id":time("03:10:00.493Z"), "tm":time("03:10:00.493Z"), "name": "John"})
+insert into dataset Employee({"id":time("20:37:19+08:00"), "tm":time("20:37:19+08:00"), "name": "Alex"})
+insert into dataset Employee({"id":time("21:39:17.948-04:00"), "tm":time("21:39:17.948-04:00"), "name": "Bob"})
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_2/issue_363_temporal_sec_key_2.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_2/issue_363_temporal_sec_key_2.3.query.aql
new file mode 100644
index 0000000..f0392b1
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_2/issue_363_temporal_sec_key_2.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset using time for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+use dataverse test;
+
+for $x in dataset('Employee')
+where $x.tm > time("07:07:07.777Z")
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_3/issue_363_temporal_sec_key_3.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_3/issue_363_temporal_sec_key_3.1.ddl.aql
new file mode 100644
index 0000000..ab88978
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_3/issue_363_temporal_sec_key_3.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : create a dataset using date for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as open {
+id:date,
+dt:date,
+name:string
+}
+
+create dataset Employee(Emp) primary key id;
+create index TestSecondIndex on Employee(dt);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_3/issue_363_temporal_sec_key_3.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_3/issue_363_temporal_sec_key_3.2.update.aql
new file mode 100644
index 0000000..b8d415e
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_3/issue_363_temporal_sec_key_3.2.update.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset using date for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+use dataverse test;
+
+insert into dataset Employee({"id":date("2010-01-01"), "dt":date("2010-01-01"), "name": "John"})
+insert into dataset Employee({"id":date("-1912-10-11"), "dt":date("-1912-10-11"), "name": "Alex"})
+insert into dataset Employee({"id":date("0732-02-02"), "dt":date("0732-02-02"), "name": "Bob"})
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_3/issue_363_temporal_sec_key_3.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_3/issue_363_temporal_sec_key_3.3.query.aql
new file mode 100644
index 0000000..128a2a6
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_3/issue_363_temporal_sec_key_3.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset using date for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+use dataverse test;
+
+for $x in dataset('Employee')
+where $x.dt > date("2007-07-07")
+return $x
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_4/issue_363_temporal_sec_key_4.1.ddl.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_4/issue_363_temporal_sec_key_4.1.ddl.aql
new file mode 100644
index 0000000..c6a8836
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_4/issue_363_temporal_sec_key_4.1.ddl.aql
@@ -0,0 +1,19 @@
+/*
+ * Description  : create a dataset using day-time-duration for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+create type Emp as open {
+id:day-time-duration,
+dur:day-time-duration,
+name:string
+}
+
+create dataset Employee(Emp) primary key id;
+create index TestSecondIndex on Employee(dt);
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_4/issue_363_temporal_sec_key_4.2.update.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_4/issue_363_temporal_sec_key_4.2.update.aql
new file mode 100644
index 0000000..d5aafe9
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_4/issue_363_temporal_sec_key_4.2.update.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset using day-time-duration for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+
+use dataverse test;
+
+insert into dataset Employee({"id":day-time-duration("P380DT983M"), "dur":day-time-duration("P380DT983M"), "name": "John"})
+insert into dataset Employee({"id":day-time-duration("-P3829H849.392S"), "dur":day-time-duration("-P3829H849.392S"), "name": "Alex"})
+insert into dataset Employee({"id":day-time-duration("PT93847M0.392S"), "dur":day-time-duration("PT93847M0.392S"), "name": "Bob"})
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_4/issue_363_temporal_sec_key_4.3.query.aql b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_4/issue_363_temporal_sec_key_4.3.query.aql
new file mode 100644
index 0000000..dbca351
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/queries/basic/issue_363_temporal_sec_key_4/issue_363_temporal_sec_key_4.3.query.aql
@@ -0,0 +1,12 @@
+/*
+ * Description  : create a dataset using day-time-duration for the secondary index 
+ * Expected Res : Success
+ * Date         : 26 May 2013
+ * Issue        : 461
+ */
+ 
+use dataverse test;
+
+for $x in dataset('Employee')
+where $x.dur > day-time-duration("P350D")
+return $x
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_0/issue363_temporal_sec_key_0.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_0/issue363_temporal_sec_key_0.1.adm
new file mode 100644
index 0000000..f1a3b14
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_0/issue363_temporal_sec_key_0.1.adm
@@ -0,0 +1 @@
+{ "id": year-month-duration("-P3Y1M"), "dur": year-month-duration("P5Y"), "name": "Alex" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_1/issue363_temporal_sec_key_1.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_1/issue363_temporal_sec_key_1.1.adm
new file mode 100644
index 0000000..1703ccd
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_1/issue363_temporal_sec_key_1.1.adm
@@ -0,0 +1 @@
+{ "id": datetime("2013-01-01T00:00:00.000Z"), "dt": datetime("2013-01-01T00:00:00.000Z"), "name": "Bob" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_2/issue363_temporal_sec_key_2.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_2/issue363_temporal_sec_key_2.1.adm
new file mode 100644
index 0000000..1e32e45
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_2/issue363_temporal_sec_key_2.1.adm
@@ -0,0 +1,2 @@
+{ "id": time("12:37:19.000Z"), "tm": time("12:37:19.000Z"), "name": "Alex" }
+{ "id": time("01:39:17.948Z"), "tm": time("01:39:17.948Z"), "name": "Bob" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_3/issue363_temporal_sec_key_3.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_3/issue363_temporal_sec_key_3.1.adm
new file mode 100644
index 0000000..fb4a286
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_3/issue363_temporal_sec_key_3.1.adm
@@ -0,0 +1 @@
+{ "id": date("2010-01-01"), "dt": date("2010-01-01"), "name": "John" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_4/issue363_temporal_sec_key_4.1.adm b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_4/issue363_temporal_sec_key_4.1.adm
new file mode 100644
index 0000000..dacaf15
--- /dev/null
+++ b/asterix-app/src/test/resources/metadata/results/basic/issue_363_temporal_sec_key_4/issue363_temporal_sec_key_4.1.adm
@@ -0,0 +1 @@
+{ "id": day-time-duration("P380DT16H23M"), "dur": day-time-duration("P380DT16H23M"), "name": "John" }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/metadata/testsuite.xml b/asterix-app/src/test/resources/metadata/testsuite.xml
index 63487d4..e9ed34d 100644
--- a/asterix-app/src/test/resources/metadata/testsuite.xml
+++ b/asterix-app/src/test/resources/metadata/testsuite.xml
@@ -175,6 +175,31 @@
         <output-dir compare="Text">issue_363_temporal_key_4</output-dir>
       </compilation-unit>
     </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_363_temporal_sec_key_0">
+        <output-dir compare="Text">issue_363_temporal_sec_key_0</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_363_temporal_sec_key_1">
+        <output-dir compare="Text">issue_363_temporal_sec_key_1</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_363_temporal_sec_key_2">
+        <output-dir compare="Text">issue_363_temporal_sec_key_2</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_363_temporal_sec_key_3">
+        <output-dir compare="Text">issue_363_temporal_sec_key_3</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="basic">
+      <compilation-unit name="issue_363_temporal_sec_key_4">
+        <output-dir compare="Text">issue_363_temporal_sec_key_4</output-dir>
+      </compilation-unit>
+    </test-case>
   </test-group>
   <test-group name="exception">
     <test-case FilePath="exception">
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-issue377/query-issue377.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue377/query-issue377.3.query.aql
index 81d6cf6..02ff97d 100644
--- a/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue377/query-issue377.3.query.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/open-closed/query-issue377/query-issue377.3.query.aql
@@ -11,6 +11,7 @@
 set simthreshold "3";
 
 for $fbu in dataset FacebookUsers
+order by $fbu.id
 return {
     "id": $fbu.id,
     "name": $fbu.name,
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/tinysocial/tinysocial-suite/tinysocial-suite.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.1.ddl.aql
new file mode 100644
index 0000000..a6af75e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.1.ddl.aql
@@ -0,0 +1,44 @@
+drop dataverse TinySocial if exists;
+create dataverse TinySocial;
+use dataverse TinySocial;
+
+create type TwitterUserType as open {
+        screen-name: string,
+        lang: string,
+        friends_count: int32,
+        statuses_count: int32,
+        name: string,
+        followers_count: int32
+}
+
+create type TweetMessageType as closed {
+        tweetid: string,
+        user: TwitterUserType,
+        sender-location: point?,
+        send-time: datetime,
+        referred-topics: {{ string }},
+        message-text: string
+}
+
+create type EmploymentType as open {
+        organization-name: string,      
+        start-date: date,
+        end-date: date?
+}
+
+create type FacebookUserType as closed {
+        id: int32,
+        alias: string,
+        name: string,
+        user-since: datetime,
+        friend-ids: {{ int32 }},
+        employment: [EmploymentType]
+}
+
+create type FacebookMessageType as closed {
+        message-id: int32,
+        author-id: int32,
+        in-response-to: int32?,
+        sender-location: point?,
+        message: string
+}
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.10.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.10.query.aql
new file mode 100644
index 0000000..24da0fb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.10.query.aql
@@ -0,0 +1,15 @@
+/**
+* Query 4 - Theta Join
+*/
+
+use dataverse TinySocial;
+
+for $t in dataset TweetMessages
+order by $t.message-text
+return {
+"message": $t.message-text,
+"nearby-messages": for $t2 in dataset TweetMessages
+                        where spatial-distance($t.sender-location, $t2.sender-location) <= 1
+                        order by $t2.message-text
+                        return { "msgtxt":$t2.message-text}
+};
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.11.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.11.query.aql
new file mode 100644
index 0000000..5f428cd
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.11.query.aql
@@ -0,0 +1,22 @@
+/**
+* Query 5 - Fuzzy Join 
+*/
+
+use dataverse TinySocial;
+
+set simfunction "edit-distance";
+set simthreshold "3";
+
+for $fbu in dataset FacebookUsers
+order by $fbu.id
+return {
+    "id": $fbu.id,
+    "name": $fbu.name,
+    "similar-users": for $t in dataset TweetMessages
+                        let $tu := $t.user
+                        where $tu.name ~= $fbu.name
+                        return {
+                        "twitter-screenname": $tu.screen-name,
+                        "twitter-name": $tu.name
+                        }
+};
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.12.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.12.query.aql
new file mode 100644
index 0000000..869b4ce
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.12.query.aql
@@ -0,0 +1,10 @@
+/**
+* Query 6 - Existential Quantification
+*/
+
+use dataverse TinySocial;
+
+for $fbu in dataset FacebookUsers
+where (some $e in $fbu.employment satisfies is-null($e.end-date)) 
+order by $fbu.id
+return $fbu;
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.13.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.13.query.aql
new file mode 100644
index 0000000..056cf9a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.13.query.aql
@@ -0,0 +1,11 @@
+/**
+* Query 7 - Universal Quantification
+*/
+
+use dataverse TinySocial;
+
+
+for $fbu in dataset FacebookUsers
+where (every $e in $fbu.employment satisfies not(is-null($e.end-date))) 
+order by $fbu.id
+return $fbu;
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.14.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.14.query.aql
new file mode 100644
index 0000000..5593669
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.14.query.aql
@@ -0,0 +1,7 @@
+/**
+* Query 8 - Simple Aggregation
+*/
+
+use dataverse TinySocial;
+
+count(for $fbu in dataset FacebookUsers return $fbu);
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.15.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.15.query.aql
new file mode 100644
index 0000000..2b45b00
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.15.query.aql
@@ -0,0 +1,13 @@
+/**
+* Query 9-A - Grouping and Aggregation
+*/
+
+use dataverse TinySocial;
+
+for $t in dataset TweetMessages
+group by $uid := $t.user.screen-name with $t
+order by $uid
+return {
+"user": $uid,
+"count": count($t)
+};
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.16.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.16.query.aql
new file mode 100644
index 0000000..22c1e50
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.16.query.aql
@@ -0,0 +1,14 @@
+/**
+* Query 9-B - (Hash-Based) Grouping and Aggregation
+*/
+
+use dataverse TinySocial;
+
+for $t in dataset TweetMessages
+/*+ hash*/
+group by $uid := $t.user.screen-name with $t
+order by $uid
+return {
+"user": $uid,
+"count": count($t)
+};
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.17.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.17.query.aql
new file mode 100644
index 0000000..9b88ac4
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.17.query.aql
@@ -0,0 +1,15 @@
+/**
+* Query 10 - Grouping and Limits
+*/
+
+use dataverse TinySocial;
+
+for $t in dataset TweetMessages
+group by $uid := $t.user.screen-name with $t
+let $c := count($t)
+order by $c desc
+limit 3
+return {
+        "user": $uid,
+        "count": $c
+};
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.18.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.18.query.aql
new file mode 100644
index 0000000..2d69ba2
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.18.query.aql
@@ -0,0 +1,19 @@
+/**
+* Query 11 - Left Outer Fuzzy Join
+*/
+
+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
+                        where  $t2.referred-topics ~= $t.referred-topics
+                        and $t2.tweetid != $t.tweetid
+                        order by $t2.tweetid
+                        return $t2.referred-topics
+};
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.19.update.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.19.update.aql
new file mode 100644
index 0000000..2a6fd83
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.19.update.aql
@@ -0,0 +1,23 @@
+/**
+* Inserting New Data
+*/
+
+use dataverse TinySocial;
+
+insert into dataset TweetMessages
+(
+   {"tweetid":"13",
+    "user":
+        {"screen-name":"NathanGiesen@211",
+         "lang":"en",
+         "friends_count":39345,
+         "statuses_count":479,
+         "name":"Nathan Giesen",
+         "followers_count":49420
+        },
+    "sender-location":point("47.44,80.65"),
+    "send-time":datetime("2008-04-26T10:10:35"),
+    "referred-topics":{{"tweeting"}},
+    "message-text":"tweety tweet, my fellow tweeters!"
+   }
+);
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.2.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.2.ddl.aql
new file mode 100644
index 0000000..1fcc52e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.2.ddl.aql
@@ -0,0 +1,19 @@
+use dataverse TinySocial;
+
+create dataset FacebookUsers(FacebookUserType)
+primary key id;
+
+create dataset FacebookMessages(FacebookMessageType)
+primary key message-id;
+
+create dataset TwitterUsers(TwitterUserType)
+primary key screen-name;
+
+create dataset TweetMessages(TweetMessageType)
+primary key tweetid
+hints(cardinality=100); 
+
+create index fbUserSinceIdx on FacebookUsers(user-since);
+create index fbAuthorIdx on FacebookMessages(author-id) type btree;
+create index fbSenderLocIndex on FacebookMessages(sender-location) type rtree;
+create index fbMessageIdx on FacebookMessages(message) type keyword;
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.20.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.20.query.aql
new file mode 100644
index 0000000..ee7bb3f
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.20.query.aql
@@ -0,0 +1,9 @@
+/**
+* Inserting New Data - Verification
+*/
+
+use dataverse TinySocial;
+
+for $t in dataset TweetMessages
+order by $t.tweetid
+return $t
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.21.update.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.21.update.aql
new file mode 100644
index 0000000..a8912cc
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.21.update.aql
@@ -0,0 +1,7 @@
+/**
+* Deleting Existing Data
+*/
+
+use dataverse TinySocial;
+
+delete $tm from dataset TweetMessages where $tm.tweetid = "13";
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.22.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.22.query.aql
new file mode 100644
index 0000000..395b7c1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.22.query.aql
@@ -0,0 +1,11 @@
+/**
+* Deleting Existing Data - Verification
+*/
+
+use dataverse TinySocial;
+
+count(
+for $t in dataset TweetMessages
+where $t.tweetid = "13"
+return $t
+)
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.3.update.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.3.update.aql
new file mode 100644
index 0000000..92db8a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.3.update.aql
@@ -0,0 +1,13 @@
+use dataverse TinySocial;
+
+load dataset FacebookUsers using localfs
+(("path"="nc1://data/tinysocial/fbu.adm"),("format"="adm"));
+
+load dataset FacebookMessages using localfs
+(("path"="nc1://data/tinysocial/fbm.adm"),("format"="adm"));
+
+load dataset TwitterUsers using localfs
+(("path"="nc1://data/tinysocial/twu.adm"),("format"="adm"));
+
+load dataset TweetMessages using localfs
+(("path"="nc1://data/tinysocial/twm.adm"),("format"="adm"));
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.4.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.4.query.aql
new file mode 100644
index 0000000..0bf0d89
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.4.query.aql
@@ -0,0 +1,9 @@
+/**
+* Query 0-A - Exact-Match Lookup
+*/
+
+use dataverse TinySocial;
+
+for $user in dataset FacebookUsers
+where $user.id = 8
+return $user;
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.5.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.5.query.aql
new file mode 100644
index 0000000..a7b40de
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.5.query.aql
@@ -0,0 +1,10 @@
+/**
+* Query 0-B - Range Scan
+*/
+
+use dataverse TinySocial;
+
+for $user in dataset FacebookUsers
+where $user.id >= 2 and $user.id <= 4
+order by $user.id
+return $user;
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.6.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.6.query.aql
new file mode 100644
index 0000000..40234f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.6.query.aql
@@ -0,0 +1,11 @@
+/**
+* Query 1 - Other Query Filters 
+*/
+
+use dataverse TinySocial;
+
+for $user in dataset FacebookUsers
+where $user.user-since >= datetime('2010-07-22T00:00:00')
+  and $user.user-since <= datetime('2012-07-29T23:59:59')
+order by $user.id
+return $user;
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.7.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.7.query.aql
new file mode 100644
index 0000000..98112ae
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.7.query.aql
@@ -0,0 +1,14 @@
+/**
+* Query 2-A - Equijoin
+*/
+
+use dataverse TinySocial;
+
+for $user in dataset FacebookUsers
+for $message in dataset FacebookMessages
+where $message.author-id = $user.id 
+order by $user.name,$message.message-id
+return {
+"uname": $user.name,
+"message": $message.message
+};
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.8.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.8.query.aql
new file mode 100644
index 0000000..e274571
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.8.query.aql
@@ -0,0 +1,14 @@
+/**
+* Query 2-B - Index join
+*/
+
+use dataverse TinySocial;
+
+for $user in dataset FacebookUsers
+for $message in dataset FacebookMessages
+where $message.author-id /*+ indexnl */  = $user.id
+order by $user.name,$message.message-id
+return {
+"uname": $user.name,
+"message": $message.message
+};
diff --git a/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.9.query.aql b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.9.query.aql
new file mode 100644
index 0000000..c4e70c6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/tinysocial/tinysocial-suite/tinysocial-suite.9.query.aql
@@ -0,0 +1,15 @@
+/**
+* Query 3 - Nested Outer Join
+*/
+
+use dataverse TinySocial;
+
+for $user in dataset FacebookUsers
+order by $user.name
+return {
+"uname": $user.name,
+"messages": for $message in dataset FacebookMessages
+                where $message.author-id = $user.id
+                order by $message.message-id
+                return $message.message
+};
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/queries/user-defined-functions/query-issue172/query-issue172.1.ddl.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue172/query-issue172.1.ddl.aql
new file mode 100644
index 0000000..e1fab96
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue172/query-issue172.1.ddl.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : This test case is to verify the fix for issue172
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=172
+ * Expected Res : Success
+ * Date         : 19th May 2013
+ */
+ 
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue172/query-issue172.2.update.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue172/query-issue172.2.update.aql
new file mode 100644
index 0000000..b08fc74
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue172/query-issue172.2.update.aql
@@ -0,0 +1,7 @@
+/*
+ * Description  : This test case is to verify the fix for issue172
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=172
+ * Expected Res : Success
+ * Date         : 19th May 2013
+ */
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue172/query-issue172.3.query.aql b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue172/query-issue172.3.query.aql
new file mode 100644
index 0000000..b695ccb
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/user-defined-functions/query-issue172/query-issue172.3.query.aql
@@ -0,0 +1,9 @@
+/*
+ * Description  : This test case is to verify the fix for issue172
+ 				: https://code.google.com/p/asterixdb/issues/detail?id=172
+ * Expected Res : Success
+ * Date         : 19th May 2013
+ */
+
+let $a := string-length(string-concat(["this is a ","test string"]))
+return $a
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-issue377/query-issue377.1.adm b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue377/query-issue377.1.adm
index c3bb80f..1a7caf5 100644
--- a/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue377/query-issue377.1.adm
+++ b/asterix-app/src/test/resources/runtimets/results/open-closed/query-issue377/query-issue377.1.adm
@@ -1,23 +1,18 @@
 { "id": 9142198, "similar-users": [  ], "name": "SherryFea" }
 { "id": 9313492, "similar-users": [  ], "name": "TeraWolfe" }
 { "id": 9478720, "similar-users": [  ], "name": "AngeliaKettlewell" }
-{ "id": 10001080, "similar-users": [  ], "name": "GarrettBode" }
-{ "id": 10179538, "similar-users": [  ], "name": "OrlandoBaxter" }
-{ "id": 10307032, "similar-users": [  ], "name": "QuentinSauter" }
-{ "id": 10394488, "similar-users": [  ], "name": "OswaldRay" }
-{ "id": 10423588, "similar-users": [  ], "name": "ShirleneRuch" }
-{ "id": 10495420, "similar-users": [  ], "name": "WendyMcloskey" }
-{ "id": 11307946, "similar-users": [  ], "name": "HelgaStough" }
-{ "id": 11447332, "similar-users": [  ], "name": "SherisseMaugham" }
-{ "id": 11570326, "similar-users": [  ], "name": "LindenFilby" }
-{ "id": 11951098, "similar-users": [  ], "name": "TeraByers" }
-{ "id": 11954992, "similar-users": [  ], "name": "CaitlinLangston" }
 { "id": 9510451, "similar-users": [  ], "name": "ChuckFinck" }
 { "id": 9594523, "similar-users": [  ], "name": "TamWillcox" }
 { "id": 9629395, "similar-users": [  ], "name": "JuliusWire" }
 { "id": 9988417, "similar-users": [  ], "name": "ColineLane" }
+{ "id": 10001080, "similar-users": [  ], "name": "GarrettBode" }
+{ "id": 10179538, "similar-users": [  ], "name": "OrlandoBaxter" }
 { "id": 10272571, "similar-users": [  ], "name": "JarrettGoldvogel" }
+{ "id": 10307032, "similar-users": [  ], "name": "QuentinSauter" }
 { "id": 10361965, "similar-users": [  ], "name": "ArlenFlick" }
+{ "id": 10394488, "similar-users": [  ], "name": "OswaldRay" }
+{ "id": 10423588, "similar-users": [  ], "name": "ShirleneRuch" }
+{ "id": 10495420, "similar-users": [  ], "name": "WendyMcloskey" }
 { "id": 10498285, "similar-users": [  ], "name": "KileyBridger" }
 { "id": 10733617, "similar-users": [  ], "name": "LeonardoKight" }
 { "id": 10874791, "similar-users": [  ], "name": "HaydeeGarratt" }
@@ -25,5 +20,10 @@
 { "id": 11061631, "similar-users": [  ], "name": "MaxeneKellogg" }
 { "id": 11068231, "similar-users": [  ], "name": "DinahSwink" }
 { "id": 11140213, "similar-users": [  ], "name": "MontgomeryWhittier" }
+{ "id": 11307946, "similar-users": [  ], "name": "HelgaStough" }
 { "id": 11381089, "similar-users": [  ], "name": "EarleneAmmons" }
+{ "id": 11447332, "similar-users": [  ], "name": "SherisseMaugham" }
+{ "id": 11570326, "similar-users": [  ], "name": "LindenFilby" }
 { "id": 11675221, "similar-users": [  ], "name": "CalantheGearhart" }
+{ "id": 11951098, "similar-users": [  ], "name": "TeraByers" }
+{ "id": 11954992, "similar-users": [  ], "name": "CaitlinLangston" }
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/results/tinysocial/tinysocial-suite/.tinysocial-suite.5.adm.swp b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/.tinysocial-suite.5.adm.swp
new file mode 100644
index 0000000..e7eb7a1
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/.tinysocial-suite.5.adm.swp
Binary files differ
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.10.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.10.adm
new file mode 100644
index 0000000..5451c76
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.10.adm
@@ -0,0 +1,12 @@
+{ "message": " can't stand iphone its platform is terrible", "nearby-messages": [ { "msgtxt": " can't stand iphone its platform is terrible" } ] }
+{ "message": " can't stand motorola its speed is terrible:(", "nearby-messages": [ { "msgtxt": " can't stand motorola its speed is terrible:(" } ] }
+{ "message": " hate verizon its voice-clarity is OMG:(", "nearby-messages": [ { "msgtxt": " hate verizon its voice-clarity is OMG:(" }, { "msgtxt": " like motorola the speed is good:)" } ] }
+{ "message": " like iphone the voice-clarity is good:)", "nearby-messages": [ { "msgtxt": " like iphone the voice-clarity is good:)" } ] }
+{ "message": " like motorola the speed is good:)", "nearby-messages": [ { "msgtxt": " hate verizon its voice-clarity is OMG:(" }, { "msgtxt": " like motorola the speed is good:)" } ] }
+{ "message": " like samsung the platform is good", "nearby-messages": [ { "msgtxt": " like samsung the platform is good" } ] }
+{ "message": " like samsung the voice-command is amazing:)", "nearby-messages": [ { "msgtxt": " like samsung the voice-command is amazing:)" } ] }
+{ "message": " like sprint the voice-command is mind-blowing:)", "nearby-messages": [ { "msgtxt": " like sprint the voice-command is mind-blowing:)" } ] }
+{ "message": " like t-mobile the shortcut-menu is awesome:)", "nearby-messages": [ { "msgtxt": " like t-mobile the shortcut-menu is awesome:)" } ] }
+{ "message": " like verizon its shortcut-menu is awesome:)", "nearby-messages": [ { "msgtxt": " like verizon its shortcut-menu is awesome:)" } ] }
+{ "message": " love t-mobile its customization is good:)", "nearby-messages": [ { "msgtxt": " love t-mobile its customization is good:)" } ] }
+{ "message": " love verizon its voicemail-service is awesome", "nearby-messages": [ { "msgtxt": " love verizon its voicemail-service is awesome" } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.11.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.11.adm
new file mode 100644
index 0000000..a5ec171
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.11.adm
@@ -0,0 +1,10 @@
+{ "id": 1, "name": "MargaritaStoddard", "similar-users": [  ] }
+{ "id": 2, "name": "IsbelDull", "similar-users": [  ] }
+{ "id": 3, "name": "EmoryUnk", "similar-users": [  ] }
+{ "id": 4, "name": "NicholasStroh", "similar-users": [  ] }
+{ "id": 5, "name": "VonKemble", "similar-users": [  ] }
+{ "id": 6, "name": "WillisWynne", "similar-users": [  ] }
+{ "id": 7, "name": "SuzannaTillson", "similar-users": [  ] }
+{ "id": 8, "name": "NilaMilliron", "similar-users": [ { "twitter-screenname": "NilaMilliron_tw", "twitter-name": "Nila Milliron" } ] }
+{ "id": 9, "name": "WoodrowNehling", "similar-users": [  ] }
+{ "id": 10, "name": "BramHatch", "similar-users": [  ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.12.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.12.adm
new file mode 100644
index 0000000..975222c
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.12.adm
@@ -0,0 +1,7 @@
+{ "id": 1, "alias": "Margarita", "name": "MargaritaStoddard", "user-since": datetime("2012-08-20T10:10:00.000Z"), "friend-ids": {{ 2, 3, 6, 10 }}, "employment": [ { "organization-name": "Codetechno", "start-date": date("2006-08-06"), "end-date": null } ] }
+{ "id": 2, "alias": "Isbel", "name": "IsbelDull", "user-since": datetime("2011-01-22T10:10:00.000Z"), "friend-ids": {{ 1, 4 }}, "employment": [ { "organization-name": "Hexviafind", "start-date": date("2010-04-27"), "end-date": null } ] }
+{ "id": 4, "alias": "Nicholas", "name": "NicholasStroh", "user-since": datetime("2010-12-27T10:10:00.000Z"), "friend-ids": {{ 2 }}, "employment": [ { "organization-name": "Zamcorporation", "start-date": date("2010-06-08"), "end-date": null } ] }
+{ "id": 5, "alias": "Von", "name": "VonKemble", "user-since": datetime("2010-01-05T10:10:00.000Z"), "friend-ids": {{ 3, 6, 10 }}, "employment": [ { "organization-name": "Kongreen", "start-date": date("2010-11-27"), "end-date": null } ] }
+{ "id": 6, "alias": "Willis", "name": "WillisWynne", "user-since": datetime("2005-01-17T10:10:00.000Z"), "friend-ids": {{ 1, 3, 7 }}, "employment": [ { "organization-name": "jaydax", "start-date": date("2009-05-15"), "end-date": null } ] }
+{ "id": 7, "alias": "Suzanna", "name": "SuzannaTillson", "user-since": datetime("2012-08-07T10:10:00.000Z"), "friend-ids": {{ 6 }}, "employment": [ { "organization-name": "Labzatron", "start-date": date("2011-04-19"), "end-date": null } ] }
+{ "id": 8, "alias": "Nila", "name": "NilaMilliron", "user-since": datetime("2008-01-01T10:10:00.000Z"), "friend-ids": {{ 3 }}, "employment": [ { "organization-name": "Plexlane", "start-date": date("2010-02-28"), "end-date": null } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.13.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.13.adm
new file mode 100644
index 0000000..2df77f6
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.13.adm
@@ -0,0 +1,3 @@
+{ "id": 3, "alias": "Emory", "name": "EmoryUnk", "user-since": datetime("2012-07-10T10:10:00.000Z"), "friend-ids": {{ 1, 5, 8, 9 }}, "employment": [ { "organization-name": "geomedia", "start-date": date("2010-06-17"), "end-date": date("2010-01-26") } ] }
+{ "id": 9, "alias": "Woodrow", "name": "WoodrowNehling", "user-since": datetime("2005-09-20T10:10:00.000Z"), "friend-ids": {{ 3, 10 }}, "employment": [ { "organization-name": "Zuncan", "start-date": date("2003-04-22"), "end-date": date("2009-12-13") } ] }
+{ "id": 10, "alias": "Bram", "name": "BramHatch", "user-since": datetime("2010-10-16T10:10:00.000Z"), "friend-ids": {{ 1, 5, 9 }}, "employment": [ { "organization-name": "physcane", "start-date": date("2007-06-05"), "end-date": date("2011-11-05") } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.14.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.14.adm
new file mode 100644
index 0000000..f599e28
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.14.adm
@@ -0,0 +1 @@
+10
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.15.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.15.adm
new file mode 100644
index 0000000..954b583
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.15.adm
@@ -0,0 +1,5 @@
+{ "user": "ChangEwing_573", "count": 1 }
+{ "user": "ColineGeyer@63", "count": 3 }
+{ "user": "NathanGiesen@211", "count": 6 }
+{ "user": "NilaMilliron_tw", "count": 1 }
+{ "user": "OliJackson_512", "count": 1 }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.16.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.16.adm
new file mode 100644
index 0000000..954b583
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.16.adm
@@ -0,0 +1,5 @@
+{ "user": "ChangEwing_573", "count": 1 }
+{ "user": "ColineGeyer@63", "count": 3 }
+{ "user": "NathanGiesen@211", "count": 6 }
+{ "user": "NilaMilliron_tw", "count": 1 }
+{ "user": "OliJackson_512", "count": 1 }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.17.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.17.adm
new file mode 100644
index 0000000..1dd9016
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.17.adm
@@ -0,0 +1,3 @@
+{ "user": "NathanGiesen@211", "count": 6 }
+{ "user": "ColineGeyer@63", "count": 3 }
+{ "user": "NilaMilliron_tw", "count": 1 }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.18.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.18.adm
new file mode 100644
index 0000000..b59a814
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.18.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" }} ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.20.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.20.adm
new file mode 100644
index 0000000..5c8c013
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.20.adm
@@ -0,0 +1,13 @@
+{ "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:)" }
+{ "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:(" }
+{ "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" }
+{ "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:)" }
+{ "tweetid": "13", "user": { "screen-name": "NathanGiesen@211", "lang": "en", "friends_count": 39345, "statuses_count": 479, "name": "Nathan Giesen", "followers_count": 49420 }, "sender-location": point("47.44,80.65"), "send-time": datetime("2008-04-26T10:10:35.000Z"), "referred-topics": {{ "tweeting" }}, "message-text": "tweety tweet, my fellow tweeters!" }
+{ "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:)" }
+{ "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:)" }
+{ "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:)" }
+{ "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:(" }
+{ "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:)" }
+{ "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" }
+{ "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:)" }
+{ "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" }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.22.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.22.adm
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.22.adm
@@ -0,0 +1 @@
+0
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.4.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.4.adm
new file mode 100644
index 0000000..e6d8392
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.4.adm
@@ -0,0 +1 @@
+{ "id": 8, "alias": "Nila", "name": "NilaMilliron", "user-since": datetime("2008-01-01T10:10:00.000Z"), "friend-ids": {{ 3 }}, "employment": [ { "organization-name": "Plexlane", "start-date": date("2010-02-28"), "end-date": null } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.5.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.5.adm
new file mode 100644
index 0000000..5e2b105
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.5.adm
@@ -0,0 +1,3 @@
+{ "id": 2, "alias": "Isbel", "name": "IsbelDull", "user-since": datetime("2011-01-22T10:10:00.000Z"), "friend-ids": {{ 1, 4 }}, "employment": [ { "organization-name": "Hexviafind", "start-date": date("2010-04-27"), "end-date": null } ] }
+{ "id": 3, "alias": "Emory", "name": "EmoryUnk", "user-since": datetime("2012-07-10T10:10:00.000Z"), "friend-ids": {{ 1, 5, 8, 9 }}, "employment": [ { "organization-name": "geomedia", "start-date": date("2010-06-17"), "end-date": date("2010-01-26") } ] }
+{ "id": 4, "alias": "Nicholas", "name": "NicholasStroh", "user-since": datetime("2010-12-27T10:10:00.000Z"), "friend-ids": {{ 2 }}, "employment": [ { "organization-name": "Zamcorporation", "start-date": date("2010-06-08"), "end-date": null } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.6.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.6.adm
new file mode 100644
index 0000000..dba1e35
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.6.adm
@@ -0,0 +1,4 @@
+{ "id": 2, "alias": "Isbel", "name": "IsbelDull", "user-since": datetime("2011-01-22T10:10:00.000Z"), "friend-ids": {{ 1, 4 }}, "employment": [ { "organization-name": "Hexviafind", "start-date": date("2010-04-27"), "end-date": null } ] }
+{ "id": 3, "alias": "Emory", "name": "EmoryUnk", "user-since": datetime("2012-07-10T10:10:00.000Z"), "friend-ids": {{ 1, 5, 8, 9 }}, "employment": [ { "organization-name": "geomedia", "start-date": date("2010-06-17"), "end-date": date("2010-01-26") } ] }
+{ "id": 4, "alias": "Nicholas", "name": "NicholasStroh", "user-since": datetime("2010-12-27T10:10:00.000Z"), "friend-ids": {{ 2 }}, "employment": [ { "organization-name": "Zamcorporation", "start-date": date("2010-06-08"), "end-date": null } ] }
+{ "id": 10, "alias": "Bram", "name": "BramHatch", "user-since": datetime("2010-10-16T10:10:00.000Z"), "friend-ids": {{ 1, 5, 9 }}, "employment": [ { "organization-name": "physcane", "start-date": date("2007-06-05"), "end-date": date("2011-11-05") } ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.7.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.7.adm
new file mode 100644
index 0000000..a403f1b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.7.adm
@@ -0,0 +1,15 @@
+{ "uname": "BramHatch", "message": " can't stand t-mobile its voicemail-service is OMG:(" }
+{ "uname": "BramHatch", "message": " dislike iphone the voice-command is bad:(" }
+{ "uname": "EmoryUnk", "message": " love sprint its shortcut-menu is awesome:)" }
+{ "uname": "EmoryUnk", "message": " love verizon its wireless is good" }
+{ "uname": "IsbelDull", "message": " like samsung the plan is amazing" }
+{ "uname": "IsbelDull", "message": " like t-mobile its platform is mind-blowing" }
+{ "uname": "MargaritaStoddard", "message": " dislike iphone its touch-screen is horrible" }
+{ "uname": "MargaritaStoddard", "message": " can't stand at&t the network is horrible:(" }
+{ "uname": "MargaritaStoddard", "message": " like verizon the 3G is awesome:)" }
+{ "uname": "MargaritaStoddard", "message": " can't stand motorola the touch-screen is terrible" }
+{ "uname": "MargaritaStoddard", "message": " can't stand at&t its plan is terrible" }
+{ "uname": "SuzannaTillson", "message": " like iphone the voicemail-service is awesome" }
+{ "uname": "VonKemble", "message": " dislike sprint the speed is horrible" }
+{ "uname": "WillisWynne", "message": " love sprint the customization is mind-blowing" }
+{ "uname": "WoodrowNehling", "message": " love at&t its 3G is good:)" }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.8.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.8.adm
new file mode 100644
index 0000000..a403f1b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.8.adm
@@ -0,0 +1,15 @@
+{ "uname": "BramHatch", "message": " can't stand t-mobile its voicemail-service is OMG:(" }
+{ "uname": "BramHatch", "message": " dislike iphone the voice-command is bad:(" }
+{ "uname": "EmoryUnk", "message": " love sprint its shortcut-menu is awesome:)" }
+{ "uname": "EmoryUnk", "message": " love verizon its wireless is good" }
+{ "uname": "IsbelDull", "message": " like samsung the plan is amazing" }
+{ "uname": "IsbelDull", "message": " like t-mobile its platform is mind-blowing" }
+{ "uname": "MargaritaStoddard", "message": " dislike iphone its touch-screen is horrible" }
+{ "uname": "MargaritaStoddard", "message": " can't stand at&t the network is horrible:(" }
+{ "uname": "MargaritaStoddard", "message": " like verizon the 3G is awesome:)" }
+{ "uname": "MargaritaStoddard", "message": " can't stand motorola the touch-screen is terrible" }
+{ "uname": "MargaritaStoddard", "message": " can't stand at&t its plan is terrible" }
+{ "uname": "SuzannaTillson", "message": " like iphone the voicemail-service is awesome" }
+{ "uname": "VonKemble", "message": " dislike sprint the speed is horrible" }
+{ "uname": "WillisWynne", "message": " love sprint the customization is mind-blowing" }
+{ "uname": "WoodrowNehling", "message": " love at&t its 3G is good:)" }
diff --git a/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.9.adm b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.9.adm
new file mode 100644
index 0000000..09b0f08
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/tinysocial/tinysocial-suite/tinysocial-suite.9.adm
@@ -0,0 +1,10 @@
+{ "uname": "BramHatch", "messages": [ " can't stand t-mobile its voicemail-service is OMG:(", " dislike iphone the voice-command is bad:(" ] }
+{ "uname": "EmoryUnk", "messages": [ " love sprint its shortcut-menu is awesome:)", " love verizon its wireless is good" ] }
+{ "uname": "IsbelDull", "messages": [ " like samsung the plan is amazing", " like t-mobile its platform is mind-blowing" ] }
+{ "uname": "MargaritaStoddard", "messages": [ " dislike iphone its touch-screen is horrible", " can't stand at&t the network is horrible:(", " like verizon the 3G is awesome:)", " can't stand motorola the touch-screen is terrible", " can't stand at&t its plan is terrible" ] }
+{ "uname": "NicholasStroh", "messages": [  ] }
+{ "uname": "NilaMilliron", "messages": [  ] }
+{ "uname": "SuzannaTillson", "messages": [ " like iphone the voicemail-service is awesome" ] }
+{ "uname": "VonKemble", "messages": [ " dislike sprint the speed is horrible" ] }
+{ "uname": "WillisWynne", "messages": [ " love sprint the customization is mind-blowing" ] }
+{ "uname": "WoodrowNehling", "messages": [ " love at&t its 3G is good:)" ] }
diff --git a/asterix-app/src/test/resources/runtimets/results/user-defined-functions/query-issue172/query-issue172.1.adm b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/query-issue172/query-issue172.1.adm
new file mode 100644
index 0000000..aabe6ec
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/user-defined-functions/query-issue172/query-issue172.1.adm
@@ -0,0 +1 @@
+21
diff --git a/asterix-app/src/test/resources/runtimets/testsuite.xml b/asterix-app/src/test/resources/runtimets/testsuite.xml
index 9e6c308..f609bf4 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>
@@ -4016,6 +3953,11 @@
       </compilation-unit>
     </test-case>
     <test-case FilePath="user-defined-functions">
+      <compilation-unit name="query-issue172">
+        <output-dir compare="Text">query-issue172</output-dir>
+      </compilation-unit>
+    </test-case>
+    <test-case FilePath="user-defined-functions">
       <compilation-unit name="query-issue455">
         <output-dir compare="Text">query-issue455</output-dir>
         <expected-error>edu.uci.ics.asterix.common.exceptions.AsterixException</expected-error>
@@ -4367,4 +4309,11 @@
       </compilation-unit>
     </test-case>
   </test-group>
+  <test-group name="tinysocial">
+    <test-case FilePath="tinysocial">
+      <compilation-unit name="tinysocial-suite">
+        <output-dir compare="Text">tinysocial-suite</output-dir>
+      </compilation-unit>
+    </test-case>
+  </test-group>
 </test-suite>
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/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
index 7969941..ae5f3ef 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
@@ -155,7 +155,8 @@
         if (expression == null) {
             return;
         }
-
+        String value = metadataProvider.getConfig().get(FunctionUtils.IMPORT_PRIVATE_FUNCTIONS);
+        boolean includePrivateFunctions = (value != null) ? Boolean.valueOf(value.toLowerCase()) : false;
         Set<FunctionSignature> functionCalls = getFunctionCalls(expression);
         for (FunctionSignature signature : functionCalls) {
 
@@ -172,9 +173,7 @@
                     buildOtherUdfs(functionDecl.getFuncBody(), functionDecls, declaredFunctions);
                 }
             } else {
-                String value = metadataProvider.getConfig().get(FunctionUtils.IMPORT_PRIVATE_FUNCTIONS);
-                boolean includePrivateFunctions = (value != null) ? Boolean.valueOf(value.toLowerCase()) : false;
-                if (isBuiltinFunction(signature, includePrivateFunctions)) {
+                if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(signature, includePrivateFunctions)) {
                     continue;
                 } else {
                     throw new AsterixException(" unknown function " + signature);
@@ -195,31 +194,6 @@
 
     }
 
-    private boolean isBuiltinFunction(FunctionSignature signature, boolean includePrivateFunctions) {
-        signature.setNamespace(AsterixBuiltinFunctions.FunctionNamespace.ASTERIX_PUBLIC.name());
-        if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(signature.getNamespace(),
-                signature.getName(), signature.getArity()))) {
-            return true;
-        }
-
-        if (includePrivateFunctions) {
-            signature.setNamespace(AlgebricksBuiltinFunctions.ALGEBRICKS_NS);
-            if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(signature.getNamespace(),
-                    signature.getName(), signature.getArity()))) {
-                return true;
-            }
-
-            signature.setNamespace(AsterixBuiltinFunctions.FunctionNamespace.ASTERIX_PRIVATE.name());
-            if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(signature.getNamespace(),
-                    signature.getName(), signature.getArity()))) {
-                return true;
-            }
-        }
-
-        return false;
-
-    }
-
     private Set<FunctionSignature> getFunctionCalls(Expression expression) throws AsterixException {
         Map<AsterixFunction, DfsColor> color = new HashMap<AsterixFunction, DfsColor>();
         Map<AsterixFunction, List<AsterixFunction>> arcs = new HashMap<AsterixFunction, List<AsterixFunction>>();
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-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java
index 563b2cf..7520b1f 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java
@@ -30,7 +30,7 @@
     }
 
     public String toString() {
-        return rep;
+        return namespace + "." + name + "@" + arity;
     }
 
     @Override
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-doc/src/site/markdown/AsterixSimilarityQueries.md b/asterix-doc/src/site/markdown/AsterixSimilarityQueries.md
deleted file mode 100644
index 4f22fef..0000000
--- a/asterix-doc/src/site/markdown/AsterixSimilarityQueries.md
+++ /dev/null
@@ -1,83 +0,0 @@
-# AsterixDB Support of Similarity Queries #
-
-## Motivation ##
-
-Similarity queries are widely used in applications where users need to find records that satisfy a similarity predicate, while exact matching is not sufficient. These queries are especially important for social and Web applications, where errors, abbreviations, and inconsistencies are common.  As an example, we may want to find all the movies starring Schwarzenegger, while we don't know the exact spelling of his last name (despite his popularity in both the movie industry and politics :-)). As another example, we want to find all the Facebook users who have similar friends. To meet this type of needs, AsterixDB supports similarity queries using efficient indexes and algorithms.
-
-## Data Types and Similarity Functions ##
-
-AsterixDB supports various similarity functions, including [edit distance](http://en.wikipedia.org/wiki/Levenshtein_distance) (on strings) and [Jaccard](http://en.wikipedia.org/wiki/Jaccard_index) (on sets). For instance, in our [TinySocial](AdmAql101.html#ADM:_Modeling_Semistructed_Data_in_AsterixDB) example, the `friend-ids` of a Facebook user forms a set of friends, and we can define a similarity between two sets. We can also convert a string to a set of "q-grams" and define the Jaccard similarity between the two sets of two strings. The "q-grams" of a string are its substrings of length "q". For instance, the 3-grams of the string `schwarzenegger` are `sch`, `chw`, `hwa`, ..., `ger`.
-
-AsterixDB provides [tokenization functions](AsterixDataTypesAndFunctions.html#Tokenizing_Functions) to convert strings to sets, and the [similarity functions](AsterixDataTypesAndFunctions.html#Similarity_Functions).
-
-## Selection Queries ##
-
-The following [query](AsterixDataTypesAndFunctions.html#edit-distance) asks for all the Facebook users whose name is similar to `Suzanna Tilson`, i.e., their edit distance is at most 2.
-
-
-        use dataverse TinySocial;
-        
-        for $user in dataset('FacebookUsers')
-        let $ed := edit-distance($user.name, "Suzanna Tilson")
-        where $ed <= 2
-        return $user
-
-
-The following [query](AsterixDataTypesAndFunctions.html#similarity-jaccard) asks for all the Facebook users whose set of friend ids is similar to `[1,5,9]`, i.e., their Jaccard similarity is at least 0.6.
-
-
-        use dataverse TinySocial;
-        
-        for $user in dataset('FacebookUsers')
-        let $sim := similarity-jaccard($user.friend-ids, [1,5,9])
-        where $sim >= 0.6f
-        return $user
-
-
-AsterixDB allows a user to use a similarity operator `~=` to express a similarity condition by defining the similiarty function and threshold using "set" statements earlier. For instance, the above query can be equivalently written as:
-
-
-        use dataverse TinySocial;
-        
-        set simfunction "jaccard";
-        set simthreshold "0.6f";
-        
-        for $user in dataset('FacebookUsers')
-        where $user.friend-ids ~= [1,5,9]
-        return $user
-
-
-
-## Fuzzy Join Queries ##
-
-AsterixDB supports fuzzy joins between two data sets. The following [query](AdmAql101.html#Query_5_-_Fuzzy_Join) finds, for each Facebook user, all Twitter users with names "similar" to their name based on the edit distance.
-
-
-        use dataverse TinySocial;
-        
-        set simfunction "edit-distance";
-        set simthreshold "3";
-        
-        for $fbu in dataset FacebookUsers
-        return {
-            "id": $fbu.id,
-            "name": $fbu.name,
-            "similar-users": for $t in dataset TweetMessages
-                                let $tu := $t.user
-                                where $tu.name ~= $fbu.name
-                                return {
-                                "twitter-screenname": $tu.screen-name,
-                                "twitter-name": $tu.name
-                                }
-        };
-
-
-## Using Indexes ##
-
-AsterixDB uses inverted index to support similarity queries efficiently. For instance, the following query creates such an index on the `FacebookUser.name` attribute using an inverted index of 3-grams.  After the index is created, similarity queries with an edit distance condition on this attribute can be answered more efficiently.
-
-
-        use dataverse TinySocial;
-        
-        create index fbUserFuzzyIdx on FacebookUsers(name) type ngram(3);
-
diff --git a/asterix-doc/src/site/markdown/SimilarityQuery.md b/asterix-doc/src/site/markdown/SimilarityQuery.md
new file mode 100644
index 0000000..6f332ea
--- /dev/null
+++ b/asterix-doc/src/site/markdown/SimilarityQuery.md
@@ -0,0 +1,174 @@
+
+# AsterixDB  Support of Similarity Queries # 
+
+## Motivation ## 
+
+Similarity queries are widely used in applications where users need to
+find records that satisfy a similarity predicate, while exact matching
+is not sufficient. These queries are especially important for social
+and Web applications, where errors, abbreviations, and inconsistencies
+are common.  As an example, we may want to find all the movies
+starring Schwarzenegger, while we don't know the exact spelling of his
+last name (despite his popularity in both the movie industry and
+politics :-)). As another example, we want to find all the Facebook
+users who have similar friends. To meet this type of needs, AsterixDB
+supports similarity queries using efficient indexes and algorithms.
+
+## Data Types and Similarity Functions ## 
+
+AsterixDB supports [edit distance](http://en.wikipedia.org/wiki/Levenshtein_distance) (on strings) and
+[Jaccard](http://en.wikipedia.org/wiki/Jaccard_index) (on sets).  For
+instance, in our
+[TinySocial](AdmAql101.html#ADM:_Modeling_Semistructed_Data_in_AsterixDB)
+example, the `friend-ids` of a Facebook user forms a set
+of friends, and we can define a similarity between the sets of
+friends of two users. We can also convert a string to a set of grams of a length "n"
+(called "n-grams") and define the Jaccard similarity between the two
+gram sets of the two strings. Formally, the "n-grams" of a string are
+its substrings of length "n". For instance, the 3-grams of the string
+`schwarzenegger` are `sch`, `chw`, `hwa`, ..., `ger`.
+
+AsterixDB provides
+[tokenization functions](AsterixDBFunctions.html#Tokenizing_Functions)
+to convert strings to sets, and the
+[similarity functions](AsterixDBFunctions.html#Similarity_Functions).
+
+## Similarity Selection Queries ## 
+
+The following [query](AsterixDBFunctions.html#edit-distance)
+asks for all the Facebook users whose name is similar to
+`Suzanna Tilson`, i.e., their edit distance is at most 2.
+
+        use dataverse TinySocial;
+        
+        for $user in dataset('FacebookUsers')
+        let $ed := edit-distance($user.name, "Suzanna Tilson")
+        where $ed <= 2
+        return $user
+
+
+The following [query](AsterixDBFunctions.html#similarity-jaccard)
+asks for all the Facebook users whose set of friend ids is
+similar to `[1,5,9]`, i.e., their Jaccard similarity is at least 0.6.
+
+        use dataverse TinySocial;
+        
+        for $user in dataset('FacebookUsers')
+        let $sim := similarity-jaccard($user.friend-ids, [1,5,9])
+        where $sim >= 0.6f
+        return $user
+
+
+AsterixDB allows a user to use a similarity operator `~=` to express a
+condition by defining the similarity function and threshold
+using "set" statements earlier. For instance, the above query can be
+equivalently written as:
+
+        use dataverse TinySocial;
+        
+        set simfunction "jaccard";
+        set simthreshold "0.6f";
+        
+        for $user in dataset('FacebookUsers')
+        where $user.friend-ids ~= [1,5,9]
+        return $user
+
+
+In this query, we first declare Jaccard as the similarity function
+using `simfunction` and then specify the threshold `0.6f` using
+`simthreshold`.
+
+## Similarity Join Queries ## 
+
+AsterixDB supports fuzzy joins between two sets. The following
+[query](AdmAql101.html#Query_5_-_Fuzzy_Join)
+finds, for each Facebook user, all Twitter users with names
+similar to their name based on the edit distance.
+
+        use dataverse TinySocial;
+        
+        set simfunction "edit-distance";
+        set simthreshold "3";
+	
+        for $fbu in dataset FacebookUsers
+        return {
+            "id": $fbu.id,
+            "name": $fbu.name,
+            "similar-users": for $t in dataset TweetMessages
+                                let $tu := $t.user
+                                where $tu.name ~= $fbu.name
+                                return {
+                                "twitter-screenname": $tu.screen-name,
+                                "twitter-name": $tu.name
+                                }
+        };
+
+## Using Indexes to Support Similarity Queries ## 
+
+AsterixDB uses two types of indexes to support similarity queries, namely
+"ngram index" and "keyword index".
+
+### NGram Index ###
+
+An "ngram index" is constructed on a set of strings.  We generate n-grams for each string, and build an inverted
+list for each n-gram that includes the ids of the strings with this
+gram.  A similarity query can be answered efficiently by accessing the
+inverted lists of the grams in the query and counting the number of
+occurrences of the string ids on these inverted lists.  The similar
+idea can be used to answer queries with Jaccard similarity.  A
+detailed description of these techniques is available at this
+[paper](http://www.ics.uci.edu/~chenli/pub/icde2009-memreducer.pdf).
+
+For instance, the following DDL statements create an ngram index on the
+`FacebookUsers.name` attribute using an inverted index of 3-grams.
+
+        use dataverse TinySocial;
+        
+        create index fbUserIdx on FacebookUsers(name) type ngram(3);
+
+The number "3" in "ngram(3)" is the length "n" in the grams. This
+index can be used to optimize similarity queries on this attribute
+using 
+[edit-distance](AsterixDBFunctions.html#edit-distance), 
+[edit-distance-check](AsterixDBFunctions.html#edit-distance-check), 
+[jaccard](AsterixDBFunctions.html#similarity-jaccard),
+or [jaccard-check](AsterixDBFunctions.html#similarity-jaccard-check) 
+queries on this attribute where the
+similarity is defined on sets of 3-grams.  This index can also be used
+to optimize queries with the "[contains()]((AsterixDBFunctions.html#contains))" predicate (i.e., substring
+matching) since it can be also be solved by counting on the inverted
+lists of the grams in the query string.
+
+### Keyword Index ###
+
+A "keyword index" is constructed on a set of strings or sets (e.g., OrderedList, UnorderedList). Instead of 
+generating grams as in an ngram index, we generate tokens (e.g., words) and for each token, construct an inverted list that includes the ids of the
+records with this token.  The following two examples show how to create keyword index on two different types:
+
+
+#### Keyword Index on String Type ####
+
+        use dataverse TinySocial;
+
+        create index fbMessageIdx on FacebookMessages(message) type keyword;
+
+        for $o in dataset('FacebookMessages')
+        let $jacc := similarity-jaccard-check(word-tokens($o.message), word-tokens("love like verizon"), 0.2f)
+        where $jacc[0]
+        return $o
+        
+#### Keyword Index on UnorderedList Type ####
+        
+        use dataverse TinySocial;
+
+        create index fbUserIdx_fids on FacebookUsers(friend-ids) type keyword;
+
+        for $c in dataset('FacebookUsers')
+        let $jacc := similarity-jaccard-check($c.friend-ids, {{3,10}}, 0.5f)
+        where $jacc[0]
+        return $c
+        
+As shown above, keyword index can be used to optimize queries with token-based similarity predicates, including
+[similarity-jaccard](AsterixDBFunctions.html#similarity-jaccard) and
+[similarity-jaccard-check](AsterixDBFunctions.html#similarity-jaccard-check).
+
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-installer/src/main/resources/conf/asterix-configuration.xml b/asterix-installer/src/main/resources/conf/asterix-configuration.xml
index b6958c5..bfec2db 100644
--- a/asterix-installer/src/main/resources/conf/asterix-configuration.xml
+++ b/asterix-installer/src/main/resources/conf/asterix-configuration.xml
@@ -55,7 +55,7 @@
 
 	<property>
 		<name>storage.memorycomponent.globalbudget</name>
-		<value>1073741824</value>
+		<value>263435456</value>
 		<description>The total size of memory in bytes that the sum of all
 			open memory
 			components cannot exceed. (Default = "1073741824" // 1GB)
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/AqlDataSource.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java
index e4c7ba2..0ed3c78 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlDataSource.java
@@ -17,7 +17,6 @@
 
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
@@ -28,6 +27,7 @@
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.utils.ListSet;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSource;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSourcePropertiesProvider;
@@ -219,7 +219,7 @@
                     if (n < 2) {
                         pp = new RandomPartitioningProperty(domain);
                     } else {
-                        Set<LogicalVariable> pvars = new HashSet<LogicalVariable>();
+                        Set<LogicalVariable> pvars = new ListSet<LogicalVariable>();
                         int i = 0;
                         for (LogicalVariable v : scanVariables) {
                             pvars.add(v);
@@ -239,7 +239,7 @@
                     if (n < 2) {
                         pp = new RandomPartitioningProperty(domain);
                     } else {
-                        Set<LogicalVariable> pvars = new HashSet<LogicalVariable>();
+                        Set<LogicalVariable> pvars = new ListSet<LogicalVariable>();
                         int i = 0;
                         for (LogicalVariable v : scanVariables) {
                             pvars.add(v);
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/functions/MetadataBuiltinFunctions.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java
index 60f2e6d..406b835 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/MetadataBuiltinFunctions.java
@@ -30,7 +30,7 @@
 
     public static void addMetadataBuiltinFunctions() {
 
-        AsterixBuiltinFunctions.add(AsterixBuiltinFunctions.DATASET, new IResultTypeComputer() {
+        AsterixBuiltinFunctions.addFunction(AsterixBuiltinFunctions.DATASET, new IResultTypeComputer() {
 
             @Override
             public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
@@ -73,7 +73,7 @@
             }
         });
 
-        AsterixBuiltinFunctions.add(AsterixBuiltinFunctions.FEED_INGEST, new IResultTypeComputer() {
+        AsterixBuiltinFunctions.addPrivateFunction(AsterixBuiltinFunctions.FEED_INGEST, new IResultTypeComputer() {
 
             @Override
             public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
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/AObjectBinaryHashFunctionFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/AObjectBinaryHashFunctionFactory.java
index 495b41f..0946f1b 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/AObjectBinaryHashFunctionFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/hash/AObjectBinaryHashFunctionFactory.java
@@ -1,14 +1,8 @@
 package edu.uci.ics.asterix.dataflow.data.nontagged.hash;
 
-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.primitive.FloatPointable;
-import edu.uci.ics.hyracks.data.std.primitive.IntegerPointable;
-import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
 
 public class AObjectBinaryHashFunctionFactory implements IBinaryHashFunctionFactory {
 
@@ -22,56 +16,12 @@
     @Override
     public IBinaryHashFunction createBinaryHashFunction() {
         return new IBinaryHashFunction() {
-
-            private IBinaryHashFunction boolHash = BooleanBinaryHashFunctionFactory.INSTANCE.createBinaryHashFunction();
-            private IBinaryHashFunction intHash = new PointableBinaryHashFunctionFactory(IntegerPointable.FACTORY)
-                    .createBinaryHashFunction();
-            private IBinaryHashFunction longHash = LongBinaryHashFunctionFactory.INSTANCE.createBinaryHashFunction();
-            private IBinaryHashFunction floatHash = new PointableBinaryHashFunctionFactory(FloatPointable.FACTORY)
-                    .createBinaryHashFunction();
-            private IBinaryHashFunction stringHash = new PointableBinaryHashFunctionFactory(UTF8StringPointable.FACTORY)
-                    .createBinaryHashFunction();
-
-            private IBinaryHashFunction doubleHash = DoubleBinaryHashFunctionFactory.INSTANCE
-                    .createBinaryHashFunction();
-
             private IBinaryHashFunction genericBinaryHash = MurmurHash3BinaryHashFunctionFamily.INSTANCE
                     .createBinaryHashFunction(0);
 
             @Override
             public int hash(byte[] bytes, int offset, int length) {
-                ATypeTag tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(bytes[offset]);
-                switch (tag) {
-                    case BOOLEAN: {
-                        return boolHash.hash(bytes, offset + 1, length - 1);
-                    }
-                    case TIME:
-                    case DATE:
-                    case YEARMONTHDURATION:
-                    case INT32: {
-                        return intHash.hash(bytes, offset + 1, length - 1);
-                    }
-                    case DATETIME:
-                    case DAYTIMEDURATION:
-                    case INT64: {
-                        return longHash.hash(bytes, offset + 1, length - 1);
-                    }
-                    case FLOAT: {
-                        return floatHash.hash(bytes, offset + 1, length - 1);
-                    }
-                    case DOUBLE: {
-                        return doubleHash.hash(bytes, offset + 1, length - 1);
-                    }
-                    case STRING: {
-                        return stringHash.hash(bytes, offset + 1, length - 1);
-                    }
-                    case NULL: {
-                        return 0;
-                    }
-                    default: {
-                        return genericBinaryHash.hash(bytes, offset + 1, length - 1);
-                    }
-                }
+                return genericBinaryHash.hash(bytes, offset, length);
             }
         };
     }
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-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFactoryProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFactoryProvider.java
index 7bfdb050..76dd07d 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFactoryProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFactoryProvider.java
@@ -2,11 +2,6 @@
 
 import java.io.Serializable;
 
-import edu.uci.ics.asterix.dataflow.data.nontagged.hash.AObjectBinaryHashFunctionFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.hash.BooleanBinaryHashFunctionFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.hash.DoubleBinaryHashFunctionFactory;
-import edu.uci.ics.asterix.dataflow.data.nontagged.hash.LongBinaryHashFunctionFactory;
-import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.hyracks.algebricks.data.IBinaryHashFunctionFactoryProvider;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunction;
 import edu.uci.ics.hyracks.api.dataflow.value.IBinaryHashFunctionFactory;
@@ -16,7 +11,6 @@
 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.RawUTF8StringPointable;
-import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
 
 public class AqlBinaryHashFunctionFactoryProvider implements IBinaryHashFunctionFactoryProvider, Serializable {
 
@@ -39,81 +33,6 @@
 
     @Override
     public IBinaryHashFunctionFactory getBinaryHashFunctionFactory(Object type) {
-        if (type == null) {
-            return AObjectBinaryHashFunctionFactory.INSTANCE;
-        }
-        IAType aqlType = (IAType) type;
-        switch (aqlType.getTypeTag()) {
-            case ANY:
-            case UNION: { // we could do smth better for nullable fields
-                return AObjectBinaryHashFunctionFactory.INSTANCE;
-            }
-            case NULL: {
-                return new IBinaryHashFunctionFactory() {
-
-                    private static final long serialVersionUID = 1L;
-
-                    @Override
-                    public IBinaryHashFunction createBinaryHashFunction() {
-                        return new IBinaryHashFunction() {
-
-                            @Override
-                            public int hash(byte[] bytes, int offset, int length) {
-                                return 0;
-                            }
-                        };
-                    }
-                };
-            }
-            case BOOLEAN: {
-                return addOffset(BooleanBinaryHashFunctionFactory.INSTANCE);
-            }
-            case DATE:
-            case TIME:
-            case YEARMONTHDURATION:
-            case INT32: {
-                return addOffset(new PointableBinaryHashFunctionFactory(IntegerPointable.FACTORY));
-            }
-            case DAYTIMEDURATION:
-            case DATETIME:
-            case INT64: {
-                return addOffset(LongBinaryHashFunctionFactory.INSTANCE);
-            }
-            case FLOAT: {
-                return addOffset(new PointableBinaryHashFunctionFactory(FloatPointable.FACTORY));
-            }
-            case DOUBLE: {
-                return addOffset(DoubleBinaryHashFunctionFactory.INSTANCE);
-            }
-            case STRING: {
-                return addOffset(new PointableBinaryHashFunctionFactory(UTF8StringPointable.FACTORY));
-            }
-            default: {
-                return addOffsetForGenericBinaryHash();
-            }
-        }
-    }
-
-    private IBinaryHashFunctionFactory addOffset(final IBinaryHashFunctionFactory inst) {
-        return new IBinaryHashFunctionFactory() {
-
-            private static final long serialVersionUID = 1L;
-
-            @Override
-            public IBinaryHashFunction createBinaryHashFunction() {
-                final IBinaryHashFunction bhf = inst.createBinaryHashFunction();
-                return new IBinaryHashFunction() {
-
-                    @Override
-                    public int hash(byte[] bytes, int offset, int length) {
-                        return bhf.hash(bytes, offset + 1, length - 1);
-                    }
-                };
-            }
-        };
-    }
-
-    private IBinaryHashFunctionFactory addOffsetForGenericBinaryHash() {
         return new IBinaryHashFunctionFactory() {
 
             private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
index eb882b8..2a732ac 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
@@ -8,6 +8,8 @@
 
 import org.apache.commons.lang3.mutable.Mutable;
 
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.common.functions.FunctionSignature;
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.ABooleanTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.ACircleTypeComputer;
@@ -103,18 +105,12 @@
         SI
     }
 
-    /*
-     * A function is categorized as public or private depending upon whether it can be used by the end-user in AQL queries.
-     */
-    public enum FunctionNamespace {
-        ASTERIX_PUBLIC,
-        ASTERIX_PRIVATE
-    }
-
     private static final FunctionInfoRepository registeredFunctions = new FunctionInfoRepository();
 
     // it is supposed to be an identity mapping
-    private final static Map<IFunctionInfo, IFunctionInfo> builtinFunctionsSet = new HashMap<IFunctionInfo, IFunctionInfo>();
+    private final static Map<IFunctionInfo, IFunctionInfo> builtinPublicFunctionsSet = new HashMap<IFunctionInfo, IFunctionInfo>();
+    private final static Map<IFunctionInfo, IFunctionInfo> builtinPrivateFunctionsSet = new HashMap<IFunctionInfo, IFunctionInfo>();
+
     private final static Map<IFunctionInfo, IResultTypeComputer> funTypeComputer = new HashMap<IFunctionInfo, IResultTypeComputer>();
 
     private final static Set<IFunctionInfo> builtinAggregateFunctions = new HashSet<IFunctionInfo>();
@@ -126,449 +122,430 @@
     private final static Map<IFunctionInfo, IFunctionInfo> scalarToAggregateFunctionMap = new HashMap<IFunctionInfo, IFunctionInfo>();
     private static final Map<IFunctionInfo, SpatialFilterKind> spatialFilterFunctions = new HashMap<IFunctionInfo, SpatialFilterKind>();
 
-    public final static FunctionIdentifier TYPE_OF = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "type-of", 1);
-    public final static FunctionIdentifier GET_HANDLE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "get-handle", 2);
-    public final static FunctionIdentifier GET_DATA = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "get-data", 2);
-    public final static FunctionIdentifier EMBED_TYPE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "embed-type", 1);
+    public final static FunctionIdentifier TYPE_OF = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "type-of", 1);
+    public final static FunctionIdentifier GET_HANDLE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "get-handle", 2);
+    public final static FunctionIdentifier GET_DATA = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-data",
+            2);
+    public final static FunctionIdentifier EMBED_TYPE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "embed-type", 1);
 
-    public final static FunctionIdentifier GET_ITEM = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "get-item", 2);
-    public final static FunctionIdentifier ANY_COLLECTION_MEMBER = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "any-collection-member", 1);
-    public final static FunctionIdentifier LISTIFY = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "listify", 1);
+    public final static FunctionIdentifier GET_ITEM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-item",
+            2);
+    public final static FunctionIdentifier ANY_COLLECTION_MEMBER = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "any-collection-member", 1);
+    public final static FunctionIdentifier LISTIFY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "listify", 1);
     // public final static FunctionIdentifier BAGIFY = new
     // FunctionIdentifier(ASTERIX_NS, "bagify", 1, true);
-    public final static FunctionIdentifier LEN = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(), "len",
-            1);
+    public final static FunctionIdentifier LEN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "len", 1);
 
-    public final static FunctionIdentifier CONCAT_NON_NULL = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "concat-non-null", FunctionIdentifier.VARARGS);
-    public final static FunctionIdentifier EMPTY_STREAM = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "empty-stream", 0);
-    public final static FunctionIdentifier NON_EMPTY_STREAM = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "non-empty-stream", 0);
+    public final static FunctionIdentifier CONCAT_NON_NULL = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "concat-non-null", FunctionIdentifier.VARARGS);
+    public final static FunctionIdentifier EMPTY_STREAM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "empty-stream", 0);
+    public final static FunctionIdentifier NON_EMPTY_STREAM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "non-empty-stream", 0);
     public final static FunctionIdentifier ORDERED_LIST_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "ordered-list-constructor", FunctionIdentifier.VARARGS);
+            FunctionConstants.ASTERIX_NS, "ordered-list-constructor", FunctionIdentifier.VARARGS);
     public final static FunctionIdentifier UNORDERED_LIST_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "unordered-list-constructor", FunctionIdentifier.VARARGS);
+            FunctionConstants.ASTERIX_NS, "unordered-list-constructor", FunctionIdentifier.VARARGS);
 
     // records
     public final static FunctionIdentifier CLOSED_RECORD_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "closed-record-constructor", FunctionIdentifier.VARARGS);
+            FunctionConstants.ASTERIX_NS, "closed-record-constructor", FunctionIdentifier.VARARGS);
     public final static FunctionIdentifier OPEN_RECORD_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "open-record-constructor", FunctionIdentifier.VARARGS);
+            FunctionConstants.ASTERIX_NS, "open-record-constructor", FunctionIdentifier.VARARGS);
     public final static FunctionIdentifier RECORD_TYPE_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "record-type-constructor", FunctionIdentifier.VARARGS);
-    public final static FunctionIdentifier FIELD_ACCESS_BY_INDEX = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "field-access-by-index", 2);
-    public final static FunctionIdentifier FIELD_ACCESS_BY_NAME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "field-access-by-name", 2);
+            FunctionConstants.ASTERIX_NS, "record-type-constructor", FunctionIdentifier.VARARGS);
+    public final static FunctionIdentifier FIELD_ACCESS_BY_INDEX = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "field-access-by-index", 2);
+    public final static FunctionIdentifier FIELD_ACCESS_BY_NAME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "field-access-by-name", 2);
 
-    public final static FunctionIdentifier NUMERIC_UNARY_MINUS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-unary-minus", 1);
+    public final static FunctionIdentifier NUMERIC_UNARY_MINUS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-unary-minus", 1);
 
-    public final static FunctionIdentifier NUMERIC_SUBTRACT = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-subtract", 2);
-    public final static FunctionIdentifier NUMERIC_MULTIPLY = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-multiply", 2);
-    public final static FunctionIdentifier NUMERIC_DIVIDE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-divide", 2);
-    public final static FunctionIdentifier NUMERIC_MOD = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-mod", 2);
-    public final static FunctionIdentifier NUMERIC_IDIV = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-idiv", 2);
-    public final static FunctionIdentifier CARET = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
-            "caret", 2);
+    public final static FunctionIdentifier NUMERIC_SUBTRACT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-subtract", 2);
+    public final static FunctionIdentifier NUMERIC_MULTIPLY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-multiply", 2);
+    public final static FunctionIdentifier NUMERIC_DIVIDE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-divide", 2);
+    public final static FunctionIdentifier NUMERIC_MOD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-mod", 2);
+    public final static FunctionIdentifier NUMERIC_IDIV = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-idiv", 2);
+    public final static FunctionIdentifier CARET = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "caret", 2);
 
-    public final static FunctionIdentifier NUMERIC_ABS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-abs", 1);
-    public final static FunctionIdentifier NUMERIC_CEILING = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-ceiling", 1);
-    public final static FunctionIdentifier NUMERIC_FLOOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-floor", 1);
-    public final static FunctionIdentifier NUMERIC_ROUND = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-round", 1);
+    public final static FunctionIdentifier NUMERIC_ABS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-abs", 1);
+    public final static FunctionIdentifier NUMERIC_CEILING = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-ceiling", 1);
+    public final static FunctionIdentifier NUMERIC_FLOOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-floor", 1);
+    public final static FunctionIdentifier NUMERIC_ROUND = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "numeric-round", 1);
     public final static FunctionIdentifier NUMERIC_ROUND_HALF_TO_EVEN = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-round-half-to-even", 1);
+            FunctionConstants.ASTERIX_NS, "numeric-round-half-to-even", 1);
     public final static FunctionIdentifier NUMERIC_ROUND_HALF_TO_EVEN2 = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "numeric-round-half-to-even", 2);
+            FunctionConstants.ASTERIX_NS, "numeric-round-half-to-even", 2);
     // String funcitons
-    public final static FunctionIdentifier STRING_EQUAL = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "string-equal", 2);
-    public final static FunctionIdentifier STRING_START_WITH = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "start-with", 2);
-    public final static FunctionIdentifier STRING_END_WITH = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "end-with", 2);
-    public final static FunctionIdentifier STRING_MATCHES = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "matches", 2);
+    public final static FunctionIdentifier STRING_EQUAL = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string-equal", 2);
+    public final static FunctionIdentifier STRING_START_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "start-with", 2);
+    public final static FunctionIdentifier STRING_END_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "end-with", 2);
+    public final static FunctionIdentifier STRING_MATCHES = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "matches", 2);
     public final static FunctionIdentifier STRING_MATCHES_WITH_FLAG = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "matches", 3);
-    public final static FunctionIdentifier STRING_LOWERCASE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "lowercase", 1);
-    public final static FunctionIdentifier STRING_REPLACE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "replace", 3);
+            FunctionConstants.ASTERIX_NS, "matches", 3);
+    public final static FunctionIdentifier STRING_LOWERCASE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "lowercase", 1);
+    public final static FunctionIdentifier STRING_REPLACE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "replace", 3);
     public final static FunctionIdentifier STRING_REPLACE_WITH_FLAG = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "replace", 4);
-    public final static FunctionIdentifier STRING_LENGTH = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "string-length", 1);
-    public final static FunctionIdentifier SUBSTRING2 = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
+            FunctionConstants.ASTERIX_NS, "replace", 4);
+    public final static FunctionIdentifier STRING_LENGTH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string-length", 1);
+    public final static FunctionIdentifier SUBSTRING2 = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "substring", 2);
-    public final static FunctionIdentifier SUBSTRING_BEFORE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "substring-before", 2);
-    public final static FunctionIdentifier SUBSTRING_AFTER = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "substring-after", 2);
-    public final static FunctionIdentifier STRING_TO_CODEPOINT = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "string-to-codepoint", 1);
-    public final static FunctionIdentifier CODEPOINT_TO_STRING = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "codepoint-to-string", 1);
-    public final static FunctionIdentifier STRING_CONCAT = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "string-concat", 1);
-    public final static FunctionIdentifier STRING_JOIN = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "string-join", 2);
+    public final static FunctionIdentifier SUBSTRING_BEFORE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "substring-before", 2);
+    public final static FunctionIdentifier SUBSTRING_AFTER = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "substring-after", 2);
+    public final static FunctionIdentifier STRING_TO_CODEPOINT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string-to-codepoint", 1);
+    public final static FunctionIdentifier CODEPOINT_TO_STRING = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "codepoint-to-string", 1);
+    public final static FunctionIdentifier STRING_CONCAT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string-concat", 1);
+    public final static FunctionIdentifier STRING_JOIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string-join", 2);
 
-    public final static FunctionIdentifier DATASET = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
-            "dataset", 1);
-    public final static FunctionIdentifier FEED_INGEST = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "feed-ingest", 1);
+    public final static FunctionIdentifier DATASET = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "dataset", 1);
+    public final static FunctionIdentifier FEED_INGEST = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "feed-ingest", 1);
 
-    public final static FunctionIdentifier INDEX_SEARCH = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "index-search", FunctionIdentifier.VARARGS);
+    public final static FunctionIdentifier INDEX_SEARCH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "index-search", FunctionIdentifier.VARARGS);
 
     public final static FunctionIdentifier MAKE_FIELD_INDEX_HANDLE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "make-field-index-handle", 2);
+            FunctionConstants.ASTERIX_NS, "make-field-index-handle", 2);
     public final static FunctionIdentifier MAKE_FIELD_NAME_HANDLE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "make-field-name-handle", 1);
+            FunctionConstants.ASTERIX_NS, "make-field-name-handle", 1);
 
-    public final static FunctionIdentifier SUBSTRING = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
+    public final static FunctionIdentifier SUBSTRING = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "substring", 3);
-    public final static FunctionIdentifier LIKE = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
-            "like", 2);
-    public final static FunctionIdentifier CONTAINS = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
-            "contains", 2);
-    public final static FunctionIdentifier STARTS_WITH = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "starts-with", 2);
-    public final static FunctionIdentifier ENDS_WITH = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
+    public final static FunctionIdentifier LIKE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "like", 2);
+    public final static FunctionIdentifier CONTAINS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "contains",
+            2);
+    public final static FunctionIdentifier STARTS_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "starts-with", 2);
+    public final static FunctionIdentifier ENDS_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "ends-with", 2);
 
-    public final static FunctionIdentifier AVG = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "agg-avg", 1);
-    public final static FunctionIdentifier COUNT = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "agg-count", 1);
-    public final static FunctionIdentifier SUM = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "agg-sum", 1);
-    public final static FunctionIdentifier LOCAL_SUM = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
+    public final static FunctionIdentifier AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-avg", 1);
+    public final static FunctionIdentifier COUNT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-count", 1);
+    public final static FunctionIdentifier SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-sum", 1);
+    public final static FunctionIdentifier LOCAL_SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "agg-local-sum", 1);
-    public final static FunctionIdentifier MAX = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "agg-max", 1);
-    public final static FunctionIdentifier LOCAL_MAX = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
+    public final static FunctionIdentifier MAX = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-max", 1);
+    public final static FunctionIdentifier LOCAL_MAX = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "agg-local-max", 1);
-    public final static FunctionIdentifier MIN = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "agg-min", 1);
-    public final static FunctionIdentifier LOCAL_MIN = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
+    public final static FunctionIdentifier MIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-min", 1);
+    public final static FunctionIdentifier LOCAL_MIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "agg-local-min", 1);
-    public final static FunctionIdentifier GLOBAL_AVG = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "agg-global-avg", 1);
-    public final static FunctionIdentifier LOCAL_AVG = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
+    public final static FunctionIdentifier GLOBAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "agg-global-avg", 1);
+    public final static FunctionIdentifier LOCAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "agg-local-avg", 1);
 
-    public final static FunctionIdentifier SCALAR_AVG = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
-            "avg", 1);
-    public final static FunctionIdentifier SCALAR_COUNT = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "count", 1);
-    public final static FunctionIdentifier SCALAR_SUM = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
-            "sum", 1);
-    public final static FunctionIdentifier SCALAR_MAX = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
-            "max", 1);
-    public final static FunctionIdentifier SCALAR_MIN = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
-            "min", 1);
-    public final static FunctionIdentifier SCALAR_GLOBAL_AVG = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "global-avg", 1);
-    public final static FunctionIdentifier SCALAR_LOCAL_AVG = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "local-avg", 1);
+    public final static FunctionIdentifier SCALAR_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "avg", 1);
+    public final static FunctionIdentifier SCALAR_COUNT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "count",
+            1);
+    public final static FunctionIdentifier SCALAR_SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "sum", 1);
+    public final static FunctionIdentifier SCALAR_MAX = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "max", 1);
+    public final static FunctionIdentifier SCALAR_MIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "min", 1);
+    public final static FunctionIdentifier SCALAR_GLOBAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "global-avg", 1);
+    public final static FunctionIdentifier SCALAR_LOCAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "local-avg", 1);
 
     // serializable aggregate functions
-    public final static FunctionIdentifier SERIAL_AVG = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "avg-serial", 1);
-    public final static FunctionIdentifier SERIAL_COUNT = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "count-serial", 1);
-    public final static FunctionIdentifier SERIAL_SUM = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "sum-serial", 1);
-    public final static FunctionIdentifier SERIAL_LOCAL_SUM = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "local-sum-serial", 1);
-    public final static FunctionIdentifier SERIAL_GLOBAL_AVG = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "global-avg-serial", 1);
-    public final static FunctionIdentifier SERIAL_LOCAL_AVG = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "local-avg-serial", 1);
+    public final static FunctionIdentifier SERIAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "avg-serial", 1);
+    public final static FunctionIdentifier SERIAL_COUNT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "count-serial", 1);
+    public final static FunctionIdentifier SERIAL_SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "sum-serial", 1);
+    public final static FunctionIdentifier SERIAL_LOCAL_SUM = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "local-sum-serial", 1);
+    public final static FunctionIdentifier SERIAL_GLOBAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "global-avg-serial", 1);
+    public final static FunctionIdentifier SERIAL_LOCAL_AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "local-avg-serial", 1);
 
-    public final static FunctionIdentifier SCAN_COLLECTION = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "scan-collection", 1);
-    public final static FunctionIdentifier SUBSET_COLLECTION = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "subset-collection", 3);
+    public final static FunctionIdentifier SCAN_COLLECTION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "scan-collection", 1);
+    public final static FunctionIdentifier SUBSET_COLLECTION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "subset-collection", 3);
 
-    public final static FunctionIdentifier RANGE = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
-            "range", 2);
+    public final static FunctionIdentifier RANGE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "range", 2);
 
     // fuzzy functions:
-    public final static FunctionIdentifier FUZZY_EQ = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "fuzzy-eq", 2);
+    public final static FunctionIdentifier FUZZY_EQ = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "fuzzy-eq",
+            2);
 
-    public final static FunctionIdentifier PREFIX_LEN_JACCARD = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "prefix-len-jaccard", 2);
+    public final static FunctionIdentifier PREFIX_LEN_JACCARD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "prefix-len-jaccard", 2);
 
-    public final static FunctionIdentifier SIMILARITY_JACCARD = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "similarity-jaccard", 2);
+    public final static FunctionIdentifier SIMILARITY_JACCARD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "similarity-jaccard", 2);
     public final static FunctionIdentifier SIMILARITY_JACCARD_CHECK = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "similarity-jaccard-check", 3);
+            FunctionConstants.ASTERIX_NS, "similarity-jaccard-check", 3);
     public final static FunctionIdentifier SIMILARITY_JACCARD_SORTED = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "similarity-jaccard-sorted", 2);
+            FunctionConstants.ASTERIX_NS, "similarity-jaccard-sorted", 2);
     public final static FunctionIdentifier SIMILARITY_JACCARD_SORTED_CHECK = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "similarity-jaccard-sorted-check", 3);
+            FunctionConstants.ASTERIX_NS, "similarity-jaccard-sorted-check", 3);
     public final static FunctionIdentifier SIMILARITY_JACCARD_PREFIX = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "similarity-jaccard-prefix", 6);
+            FunctionConstants.ASTERIX_NS, "similarity-jaccard-prefix", 6);
     public final static FunctionIdentifier SIMILARITY_JACCARD_PREFIX_CHECK = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "similarity-jaccard-prefix-check", 6);
+            FunctionConstants.ASTERIX_NS, "similarity-jaccard-prefix-check", 6);
 
-    public final static FunctionIdentifier EDIT_DISTANCE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "edit-distance", 2);
-    public final static FunctionIdentifier EDIT_DISTANCE_CHECK = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "edit-distance-check", 3);
+    public final static FunctionIdentifier EDIT_DISTANCE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "edit-distance", 2);
+    public final static FunctionIdentifier EDIT_DISTANCE_CHECK = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "edit-distance-check", 3);
     public final static FunctionIdentifier EDIT_DISTANCE_LIST_IS_FILTERABLE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "edit-distance-list-is-filterable", 2);
+            FunctionConstants.ASTERIX_NS, "edit-distance-list-is-filterable", 2);
     public final static FunctionIdentifier EDIT_DISTANCE_STRING_IS_FILTERABLE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "edit-distance-string-is-filterable", 4);
+            FunctionConstants.ASTERIX_NS, "edit-distance-string-is-filterable", 4);
 
     // tokenizers:
-    public final static FunctionIdentifier WORD_TOKENS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "word-tokens", 1);
-    public final static FunctionIdentifier HASHED_WORD_TOKENS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "hashed-word-tokens", 1);
+    public final static FunctionIdentifier WORD_TOKENS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "word-tokens", 1);
+    public final static FunctionIdentifier HASHED_WORD_TOKENS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "hashed-word-tokens", 1);
     public final static FunctionIdentifier COUNTHASHED_WORD_TOKENS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "counthashed-word-tokens", 1);
-    public final static FunctionIdentifier GRAM_TOKENS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "gram-tokens", 3);
-    public final static FunctionIdentifier HASHED_GRAM_TOKENS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "hashed-gram-tokens", 3);
+            FunctionConstants.ASTERIX_NS, "counthashed-word-tokens", 1);
+    public final static FunctionIdentifier GRAM_TOKENS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "gram-tokens", 3);
+    public final static FunctionIdentifier HASHED_GRAM_TOKENS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "hashed-gram-tokens", 3);
     public final static FunctionIdentifier COUNTHASHED_GRAM_TOKENS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "counthashed-gram-tokens", 3);
+            FunctionConstants.ASTERIX_NS, "counthashed-gram-tokens", 3);
 
-    public final static FunctionIdentifier TID = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "tid", 0);
+    public final static FunctionIdentifier TID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "tid", 0);
 
     // constructors:
-    public final static FunctionIdentifier BOOLEAN_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "boolean", 1);
-    public final static FunctionIdentifier NULL_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "null", 1);
-    public final static FunctionIdentifier STRING_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "string", 1);
-    public final static FunctionIdentifier INT8_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "int8", 1);
-    public final static FunctionIdentifier INT16_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "int16", 1);
-    public final static FunctionIdentifier INT32_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "int32", 1);
-    public final static FunctionIdentifier INT64_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "int64", 1);
-    public final static FunctionIdentifier FLOAT_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "float", 1);
-    public final static FunctionIdentifier DOUBLE_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "double", 1);
-    public final static FunctionIdentifier POINT_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "point", 1);
-    public final static FunctionIdentifier POINT3D_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "point3d", 1);
-    public final static FunctionIdentifier LINE_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "line", 1);
-    public final static FunctionIdentifier CIRCLE_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "circle", 1);
-    public final static FunctionIdentifier RECTANGLE_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "rectangle", 1);
-    public final static FunctionIdentifier POLYGON_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "polygon", 1);
-    public final static FunctionIdentifier TIME_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "time", 1);
-    public final static FunctionIdentifier DATE_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "date", 1);
-    public final static FunctionIdentifier DATETIME_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "datetime", 1);
-    public final static FunctionIdentifier DURATION_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "duration", 1);
+    public final static FunctionIdentifier BOOLEAN_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "boolean", 1);
+    public final static FunctionIdentifier NULL_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "null", 1);
+    public final static FunctionIdentifier STRING_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "string", 1);
+    public final static FunctionIdentifier INT8_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "int8", 1);
+    public final static FunctionIdentifier INT16_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "int16", 1);
+    public final static FunctionIdentifier INT32_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "int32", 1);
+    public final static FunctionIdentifier INT64_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "int64", 1);
+    public final static FunctionIdentifier FLOAT_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "float", 1);
+    public final static FunctionIdentifier DOUBLE_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "double", 1);
+    public final static FunctionIdentifier POINT_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "point", 1);
+    public final static FunctionIdentifier POINT3D_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "point3d", 1);
+    public final static FunctionIdentifier LINE_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "line", 1);
+    public final static FunctionIdentifier CIRCLE_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "circle", 1);
+    public final static FunctionIdentifier RECTANGLE_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "rectangle", 1);
+    public final static FunctionIdentifier POLYGON_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "polygon", 1);
+    public final static FunctionIdentifier TIME_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "time", 1);
+    public final static FunctionIdentifier DATE_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "date", 1);
+    public final static FunctionIdentifier DATETIME_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "datetime", 1);
+    public final static FunctionIdentifier DURATION_CONSTRUCTOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "duration", 1);
 
     public final static FunctionIdentifier YEAR_MONTH_DURATION_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "year-month-duration", 1);
+            FunctionConstants.ASTERIX_NS, "year-month-duration", 1);
     public final static FunctionIdentifier DAY_TIME_DURATION_CONSTRUCTOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "day-time-duration", 1);
+            FunctionConstants.ASTERIX_NS, "day-time-duration", 1);
 
     public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_DATE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-from-date", 2);
+            FunctionConstants.ASTERIX_NS, "interval-from-date", 2);
     public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_TIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-from-time", 2);
+            FunctionConstants.ASTERIX_NS, "interval-from-time", 2);
     public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_DATETIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-from-datetime", 2);
+            FunctionConstants.ASTERIX_NS, "interval-from-datetime", 2);
     public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_START_FROM_DATE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-start-from-date", 2);
+            FunctionConstants.ASTERIX_NS, "interval-start-from-date", 2);
     public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_START_FROM_TIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-start-from-time", 2);
+            FunctionConstants.ASTERIX_NS, "interval-start-from-time", 2);
     public final static FunctionIdentifier INTERVAL_CONSTRUCTOR_START_FROM_DATETIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-start-from-datetime", 2);
-    public final static FunctionIdentifier INTERVAL_BEFORE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-before", 2);
-    public final static FunctionIdentifier INTERVAL_AFTER = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-after", 2);
-    public final static FunctionIdentifier INTERVAL_MEETS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-meets", 2);
-    public final static FunctionIdentifier INTERVAL_MET_BY = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-met-by", 2);
-    public final static FunctionIdentifier INTERVAL_OVERLAPS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-overlaps", 2);
+            FunctionConstants.ASTERIX_NS, "interval-start-from-datetime", 2);
+    public final static FunctionIdentifier INTERVAL_BEFORE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-before", 2);
+    public final static FunctionIdentifier INTERVAL_AFTER = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-after", 2);
+    public final static FunctionIdentifier INTERVAL_MEETS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-meets", 2);
+    public final static FunctionIdentifier INTERVAL_MET_BY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-met-by", 2);
+    public final static FunctionIdentifier INTERVAL_OVERLAPS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-overlaps", 2);
     public final static FunctionIdentifier INTERVAL_OVERLAPPED_BY = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-overlapped-by", 2);
-    public final static FunctionIdentifier OVERLAP = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
-            "overlap", 2);
-    public final static FunctionIdentifier INTERVAL_STARTS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-starts", 2);
-    public final static FunctionIdentifier INTERVAL_STARTED_BY = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-started-by", 2);
-    public final static FunctionIdentifier INTERVAL_COVERS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-covers", 2);
-    public final static FunctionIdentifier INTERVAL_COVERED_BY = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-covered-by", 2);
-    public final static FunctionIdentifier INTERVAL_ENDS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-ends", 2);
-    public final static FunctionIdentifier INTERVAL_ENDED_BY = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "interval-ended-by", 2);
-    public final static FunctionIdentifier CURRENT_TIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "current-time", 0);
-    public final static FunctionIdentifier CURRENT_DATE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "current-date", 0);
-    public final static FunctionIdentifier CURRENT_DATETIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "current-datetime", 0);
-    public final static FunctionIdentifier DURATION_EQUAL = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "duration-equal", 2);
+            FunctionConstants.ASTERIX_NS, "interval-overlapped-by", 2);
+    public final static FunctionIdentifier OVERLAP = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "overlap", 2);
+    public final static FunctionIdentifier INTERVAL_STARTS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-starts", 2);
+    public final static FunctionIdentifier INTERVAL_STARTED_BY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-started-by", 2);
+    public final static FunctionIdentifier INTERVAL_COVERS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-covers", 2);
+    public final static FunctionIdentifier INTERVAL_COVERED_BY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-covered-by", 2);
+    public final static FunctionIdentifier INTERVAL_ENDS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-ends", 2);
+    public final static FunctionIdentifier INTERVAL_ENDED_BY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "interval-ended-by", 2);
+    public final static FunctionIdentifier CURRENT_TIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "current-time", 0);
+    public final static FunctionIdentifier CURRENT_DATE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "current-date", 0);
+    public final static FunctionIdentifier CURRENT_DATETIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "current-datetime", 0);
+    public final static FunctionIdentifier DURATION_EQUAL = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "duration-equal", 2);
     public final static FunctionIdentifier YEAR_MONTH_DURATION_GREATER_THAN = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "year-month-duration-greater-than", 2);
+            FunctionConstants.ASTERIX_NS, "year-month-duration-greater-than", 2);
     public final static FunctionIdentifier YEAR_MONTH_DURATION_LESS_THAN = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "year-month-duration-less-than", 2);
+            FunctionConstants.ASTERIX_NS, "year-month-duration-less-than", 2);
     public final static FunctionIdentifier DAY_TIME_DURATION_GREATER_THAN = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "day-time-duration-greater-than", 2);
+            FunctionConstants.ASTERIX_NS, "day-time-duration-greater-than", 2);
     public final static FunctionIdentifier DAY_TIME_DURATION_LESS_THAN = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "day-time-duration-less-than", 2);
-    public final static FunctionIdentifier DURATION_FROM_MONTHS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "duration-from-months", 1);
+            FunctionConstants.ASTERIX_NS, "day-time-duration-less-than", 2);
+    public final static FunctionIdentifier DURATION_FROM_MONTHS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "duration-from-months", 1);
     public final static FunctionIdentifier MONTHS_FROM_YEAR_MONTH_DURATION = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "months-from-year-month-duration", 1);
+            FunctionConstants.ASTERIX_NS, "months-from-year-month-duration", 1);
     public final static FunctionIdentifier DURATION_FROM_MILLISECONDS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "duration-from-ms", 1);
+            FunctionConstants.ASTERIX_NS, "duration-from-ms", 1);
     public final static FunctionIdentifier MILLISECONDS_FROM_DAY_TIME_DURATION = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "ms-from-day-time-duration", 1);
+            FunctionConstants.ASTERIX_NS, "ms-from-day-time-duration", 1);
 
     public final static FunctionIdentifier GET_YEAR_MONTH_DURATION = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "get-year-month-duration", 1);
-    public final static FunctionIdentifier GET_DAY_TIME_DURATION = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "get-day-time-duration", 1);
+            FunctionConstants.ASTERIX_NS, "get-year-month-duration", 1);
+    public final static FunctionIdentifier GET_DAY_TIME_DURATION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "get-day-time-duration", 1);
 
     // spatial
-    public final static FunctionIdentifier CREATE_POINT = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "create-point", 2);
-    public final static FunctionIdentifier CREATE_LINE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "create-line", 2);
-    public final static FunctionIdentifier CREATE_POLYGON = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "create-polygon", FunctionIdentifier.VARARGS);
-    public final static FunctionIdentifier CREATE_CIRCLE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "create-circle", 2);
-    public final static FunctionIdentifier CREATE_RECTANGLE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "create-rectangle", 2);
-    public final static FunctionIdentifier SPATIAL_INTERSECT = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "spatial-intersect", 2);
-    public final static FunctionIdentifier SPATIAL_AREA = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "spatial-area", 1);
-    public final static FunctionIdentifier SPATIAL_DISTANCE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "spatial-distance", 2);
-    public final static FunctionIdentifier CREATE_MBR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "create-mbr", 3);
-    public final static FunctionIdentifier SPATIAL_CELL = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "spatial-cell", 4);
-    public final static FunctionIdentifier SWITCH_CASE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "switch-case", FunctionIdentifier.VARARGS);
-    public final static FunctionIdentifier REG_EXP = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "reg-exp", 2);
+    public final static FunctionIdentifier CREATE_POINT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "create-point", 2);
+    public final static FunctionIdentifier CREATE_LINE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "create-line", 2);
+    public final static FunctionIdentifier CREATE_POLYGON = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "create-polygon", FunctionIdentifier.VARARGS);
+    public final static FunctionIdentifier CREATE_CIRCLE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "create-circle", 2);
+    public final static FunctionIdentifier CREATE_RECTANGLE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "create-rectangle", 2);
+    public final static FunctionIdentifier SPATIAL_INTERSECT = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "spatial-intersect", 2);
+    public final static FunctionIdentifier SPATIAL_AREA = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "spatial-area", 1);
+    public final static FunctionIdentifier SPATIAL_DISTANCE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "spatial-distance", 2);
+    public final static FunctionIdentifier CREATE_MBR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "create-mbr", 3);
+    public final static FunctionIdentifier SPATIAL_CELL = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "spatial-cell", 4);
+    public final static FunctionIdentifier SWITCH_CASE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "switch-case", FunctionIdentifier.VARARGS);
+    public final static FunctionIdentifier REG_EXP = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "reg-exp", 2);
 
-    public final static FunctionIdentifier INJECT_FAILURE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "inject-failure", 2);
-    public final static FunctionIdentifier CAST_RECORD = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PRIVATE.name(), "cast-record", 1);
-    public final static FunctionIdentifier CAST_LIST = new FunctionIdentifier(FunctionNamespace.ASTERIX_PUBLIC.name(),
+    public final static FunctionIdentifier INJECT_FAILURE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "inject-failure", 2);
+    public final static FunctionIdentifier CAST_RECORD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "cast-record", 1);
+    public final static FunctionIdentifier CAST_LIST = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "cast-list", 1);
 
     // Spatial and temporal type accessors
     public static final FunctionIdentifier ACCESSOR_TEMPORAL_YEAR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "year", 1);
+            FunctionConstants.ASTERIX_NS, "year", 1);
     public static final FunctionIdentifier ACCESSOR_TEMPORAL_MONTH = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "month", 1);
-    public static final FunctionIdentifier ACCESSOR_TEMPORAL_DAY = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "day", 1);
+            FunctionConstants.ASTERIX_NS, "month", 1);
+    public static final FunctionIdentifier ACCESSOR_TEMPORAL_DAY = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "day", 1);
     public static final FunctionIdentifier ACCESSOR_TEMPORAL_HOUR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "hour", 1);
-    public static final FunctionIdentifier ACCESSOR_TEMPORAL_MIN = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "minute", 1);
-    public static final FunctionIdentifier ACCESSOR_TEMPORAL_SEC = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "second", 1);
+            FunctionConstants.ASTERIX_NS, "hour", 1);
+    public static final FunctionIdentifier ACCESSOR_TEMPORAL_MIN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "minute", 1);
+    public static final FunctionIdentifier ACCESSOR_TEMPORAL_SEC = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "second", 1);
     public static final FunctionIdentifier ACCESSOR_TEMPORAL_MILLISEC = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "millisecond", 1);
+            FunctionConstants.ASTERIX_NS, "millisecond", 1);
     public static final FunctionIdentifier ACCESSOR_TEMPORAL_INTERVAL_START = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "get-interval-start", 1);
+            FunctionConstants.ASTERIX_NS, "get-interval-start", 1);
     public static final FunctionIdentifier ACCESSOR_TEMPORAL_INTERVAL_END = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "get-interval-end", 1);
+            FunctionConstants.ASTERIX_NS, "get-interval-end", 1);
 
     // Temporal functions
     public static final FunctionIdentifier DATE_FROM_UNIX_TIME_IN_DAYS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "date-from-unix-time-in-days", 1);
-    public static final FunctionIdentifier DATE_FROM_DATETIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "date-from-datetime", 1);
-    public final static FunctionIdentifier ADD_DATE_DURATION = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "add-date-duration", 2);
-    public final static FunctionIdentifier SUBTRACT_DATE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "subtract-date", 2);
+            FunctionConstants.ASTERIX_NS, "date-from-unix-time-in-days", 1);
+    public static final FunctionIdentifier DATE_FROM_DATETIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "date-from-datetime", 1);
+    public final static FunctionIdentifier ADD_DATE_DURATION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "add-date-duration", 2);
+    public final static FunctionIdentifier SUBTRACT_DATE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "subtract-date", 2);
     public final static FunctionIdentifier TIME_FROM_UNIX_TIME_IN_MS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "time-from-unix-time-in-ms", 1);
-    public final static FunctionIdentifier TIME_FROM_DATETIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "time-from-datetime", 1);
-    public final static FunctionIdentifier SUBTRACT_TIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "subtract-time", 2);
-    public final static FunctionIdentifier ADD_TIME_DURATION = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "add-time-duration", 2);
+            FunctionConstants.ASTERIX_NS, "time-from-unix-time-in-ms", 1);
+    public final static FunctionIdentifier TIME_FROM_DATETIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "time-from-datetime", 1);
+    public final static FunctionIdentifier SUBTRACT_TIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "subtract-time", 2);
+    public final static FunctionIdentifier ADD_TIME_DURATION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "add-time-duration", 2);
     public final static FunctionIdentifier DATETIME_FROM_UNIX_TIME_IN_MS = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "datetime-from-unix-time-in-ms", 1);
+            FunctionConstants.ASTERIX_NS, "datetime-from-unix-time-in-ms", 1);
     public final static FunctionIdentifier DATETIME_FROM_DATE_TIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "datetime-from-date-time", 2);
-    public final static FunctionIdentifier SUBTRACT_DATETIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "subtract-datetime", 2);
-    public final static FunctionIdentifier ADD_DATETIME_DURATION = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "add-datetime-duration", 2);
+            FunctionConstants.ASTERIX_NS, "datetime-from-date-time", 2);
+    public final static FunctionIdentifier SUBTRACT_DATETIME = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "subtract-datetime", 2);
+    public final static FunctionIdentifier ADD_DATETIME_DURATION = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+            "add-datetime-duration", 2);
     public final static FunctionIdentifier CALENDAR_DURATION_FROM_DATETIME = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "calendar-duration-from-datetime", 2);
+            FunctionConstants.ASTERIX_NS, "calendar-duration-from-datetime", 2);
     public final static FunctionIdentifier CALENDAR_DURATION_FROM_DATE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "calendar-duration-from-date", 2);
+            FunctionConstants.ASTERIX_NS, "calendar-duration-from-date", 2);
     public final static FunctionIdentifier ADJUST_TIME_FOR_TIMEZONE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "adjust-time-for-timezone", 2);
+            FunctionConstants.ASTERIX_NS, "adjust-time-for-timezone", 2);
     public final static FunctionIdentifier ADJUST_DATETIME_FOR_TIMEZONE = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "adjust-datetime-for-timezone", 2);
+            FunctionConstants.ASTERIX_NS, "adjust-datetime-for-timezone", 2);
 
     public final static FunctionIdentifier GET_POINT_X_COORDINATE_ACCESSOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "get-x", 1);
+            FunctionConstants.ASTERIX_NS, "get-x", 1);
     public final static FunctionIdentifier GET_POINT_Y_COORDINATE_ACCESSOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "get-y", 1);
+            FunctionConstants.ASTERIX_NS, "get-y", 1);
     public final static FunctionIdentifier GET_CIRCLE_RADIUS_ACCESSOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "get-radius", 1);
+            FunctionConstants.ASTERIX_NS, "get-radius", 1);
     public final static FunctionIdentifier GET_CIRCLE_CENTER_ACCESSOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "get-center", 1);
+            FunctionConstants.ASTERIX_NS, "get-center", 1);
     public final static FunctionIdentifier GET_POINTS_LINE_RECTANGLE_POLYGON_ACCESSOR = new FunctionIdentifier(
-            FunctionNamespace.ASTERIX_PUBLIC.name(), "get-points", 1);
+            FunctionConstants.ASTERIX_NS, "get-points", 1);
 
     public static final FunctionIdentifier EQ = AlgebricksBuiltinFunctions.EQ;
     public static final FunctionIdentifier LE = AlgebricksBuiltinFunctions.LE;
@@ -582,8 +559,8 @@
     public static final FunctionIdentifier NUMERIC_ADD = AlgebricksBuiltinFunctions.NUMERIC_ADD;
     public static final FunctionIdentifier IS_NULL = AlgebricksBuiltinFunctions.IS_NULL;
 
-    public static final FunctionIdentifier NOT_NULL = new FunctionIdentifier(FunctionNamespace.ASTERIX_PRIVATE.name(),
-            "not-null", 1);
+    public static final FunctionIdentifier NOT_NULL = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "not-null",
+            1);
 
     public static IFunctionInfo getAsterixFunctionInfo(FunctionIdentifier fid) {
         IFunctionInfo finfo = registeredFunctions.get(fid);
@@ -600,72 +577,73 @@
     static {
 
         // first, take care of Algebricks builtin functions
-        add(EQ, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(LE, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(GE, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(LT, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(GT, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(IS_NULL, ABooleanTypeComputer.INSTANCE);
-        add(AND, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(NEQ, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(NOT, UnaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(OR, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(NUMERIC_ADD, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
+        addFunction(IS_NULL, ABooleanTypeComputer.INSTANCE);
+        addFunction(NOT, UnaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+
+        addPrivateFunction(EQ, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addPrivateFunction(LE, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addPrivateFunction(GE, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addPrivateFunction(LT, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addPrivateFunction(GT, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addPrivateFunction(AND, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addPrivateFunction(NEQ, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addPrivateFunction(OR, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addPrivateFunction(NUMERIC_ADD, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
 
         // and then, Asterix builtin functions
-        add(NOT_NULL, NotNullTypeComputer.INSTANCE);
-        add(ANY_COLLECTION_MEMBER, NonTaggedCollectionMemberResultType.INSTANCE);
-        add(AVG, OptionalADoubleTypeComputer.INSTANCE);
-        add(BOOLEAN_CONSTRUCTOR, UnaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(CARET, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
-        add(CIRCLE_CONSTRUCTOR, OptionalACircleTypeComputer.INSTANCE);
-        add(CLOSED_RECORD_CONSTRUCTOR, ClosedRecordConstructorResultType.INSTANCE);
-        add(CONCAT_NON_NULL, ConcatNonNullTypeComputer.INSTANCE);
+        addPrivateFunction(NOT_NULL, NotNullTypeComputer.INSTANCE);
+        addPrivateFunction(ANY_COLLECTION_MEMBER, NonTaggedCollectionMemberResultType.INSTANCE);
+        addPrivateFunction(AVG, OptionalADoubleTypeComputer.INSTANCE);
+        addFunction(BOOLEAN_CONSTRUCTOR, UnaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addFunction(CARET, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
+        addFunction(CIRCLE_CONSTRUCTOR, OptionalACircleTypeComputer.INSTANCE);
+        addPrivateFunction(CLOSED_RECORD_CONSTRUCTOR, ClosedRecordConstructorResultType.INSTANCE);
+        addPrivateFunction(CONCAT_NON_NULL, ConcatNonNullTypeComputer.INSTANCE);
 
-        add(CONTAINS, ABooleanTypeComputer.INSTANCE);
-        add(COUNT, AInt32TypeComputer.INSTANCE);
-        add(COUNTHASHED_GRAM_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
-        add(COUNTHASHED_WORD_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
-        add(CREATE_CIRCLE, ACircleTypeComputer.INSTANCE);
-        add(CREATE_LINE, ALineTypeComputer.INSTANCE);
-        add(CREATE_MBR, ADoubleTypeComputer.INSTANCE);
-        add(CREATE_POINT, APointTypeComputer.INSTANCE);
-        add(CREATE_POLYGON, APolygonTypeComputer.INSTANCE);
-        add(CREATE_RECTANGLE, ARectangleTypeComputer.INSTANCE);
+        addFunction(CONTAINS, ABooleanTypeComputer.INSTANCE);
+        addPrivateFunction(COUNT, AInt32TypeComputer.INSTANCE);
+        addFunction(COUNTHASHED_GRAM_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
+        addPrivateFunction(COUNTHASHED_WORD_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
+        addFunction(CREATE_CIRCLE, ACircleTypeComputer.INSTANCE);
+        addFunction(CREATE_LINE, ALineTypeComputer.INSTANCE);
+        addFunction(CREATE_MBR, ADoubleTypeComputer.INSTANCE);
+        addFunction(CREATE_POINT, APointTypeComputer.INSTANCE);
+        addFunction(CREATE_POLYGON, APolygonTypeComputer.INSTANCE);
+        addFunction(CREATE_RECTANGLE, ARectangleTypeComputer.INSTANCE);
 
-        add(DATE_CONSTRUCTOR, OptionalADateTypeComputer.INSTANCE);
-        add(DATETIME_CONSTRUCTOR, OptionalADateTimeTypeComputer.INSTANCE);
-        add(DOUBLE_CONSTRUCTOR, OptionalADoubleTypeComputer.INSTANCE);
-        add(DURATION_CONSTRUCTOR, OptionalADurationTypeComputer.INSTANCE);
-        add(YEAR_MONTH_DURATION_CONSTRUCTOR, OptionalAYearMonthDurationTypeComputer.INSTANCE);
-        add(DAY_TIME_DURATION_CONSTRUCTOR, OptionalADayTimeDurationTypeComputer.INSTANCE);
-        add(EDIT_DISTANCE, AInt32TypeComputer.INSTANCE);
-        add(EDIT_DISTANCE_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
-        add(EDIT_DISTANCE_STRING_IS_FILTERABLE, ABooleanTypeComputer.INSTANCE);
-        add(EDIT_DISTANCE_LIST_IS_FILTERABLE, ABooleanTypeComputer.INSTANCE);
-        add(EMBED_TYPE, new IResultTypeComputer() {
+        addFunction(DATE_CONSTRUCTOR, OptionalADateTypeComputer.INSTANCE);
+        addFunction(DATETIME_CONSTRUCTOR, OptionalADateTimeTypeComputer.INSTANCE);
+        addFunction(DOUBLE_CONSTRUCTOR, OptionalADoubleTypeComputer.INSTANCE);
+        addFunction(DURATION_CONSTRUCTOR, OptionalADurationTypeComputer.INSTANCE);
+        addFunction(YEAR_MONTH_DURATION_CONSTRUCTOR, OptionalAYearMonthDurationTypeComputer.INSTANCE);
+        addFunction(DAY_TIME_DURATION_CONSTRUCTOR, OptionalADayTimeDurationTypeComputer.INSTANCE);
+        addFunction(EDIT_DISTANCE, AInt32TypeComputer.INSTANCE);
+        addFunction(EDIT_DISTANCE_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
+        addPrivateFunction(EDIT_DISTANCE_STRING_IS_FILTERABLE, ABooleanTypeComputer.INSTANCE);
+        addPrivateFunction(EDIT_DISTANCE_LIST_IS_FILTERABLE, ABooleanTypeComputer.INSTANCE);
+        addPrivateFunction(EMBED_TYPE, new IResultTypeComputer() {
             @Override
             public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
                     IMetadataProvider<?, ?> mp) throws AlgebricksException {
                 return (IAType) BuiltinType.ANY;
             }
         });
-        add(EMPTY_STREAM, ABooleanTypeComputer.INSTANCE);
-        add(ENDS_WITH, ABooleanTypeComputer.INSTANCE);
+        addPrivateFunction(EMPTY_STREAM, ABooleanTypeComputer.INSTANCE);
+        addFunction(ENDS_WITH, ABooleanTypeComputer.INSTANCE);
         // add(FIELD_ACCESS, NonTaggedFieldAccessByNameResultType.INSTANCE);
-        add(FIELD_ACCESS_BY_INDEX, FieldAccessByIndexResultType.INSTANCE);
-        add(FIELD_ACCESS_BY_NAME, NonTaggedFieldAccessByNameResultType.INSTANCE);
-        add(FLOAT_CONSTRUCTOR, OptionalAFloatTypeComputer.INSTANCE);
-        add(FUZZY_EQ, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(GET_HANDLE, null); // TODO
-        add(GET_ITEM, NonTaggedGetItemResultType.INSTANCE);
-        add(GET_DATA, null); // TODO
-        add(GLOBAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
-        add(GRAM_TOKENS, OrderedListOfAStringTypeComputer.INSTANCE);
-        add(GLOBAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
-        add(HASHED_GRAM_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
-        add(HASHED_WORD_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
-        add(INDEX_SEARCH, new IResultTypeComputer() {
+        addPrivateFunction(FIELD_ACCESS_BY_INDEX, FieldAccessByIndexResultType.INSTANCE);
+        addPrivateFunction(FIELD_ACCESS_BY_NAME, NonTaggedFieldAccessByNameResultType.INSTANCE);
+        addFunction(FLOAT_CONSTRUCTOR, OptionalAFloatTypeComputer.INSTANCE);
+        addPrivateFunction(FUZZY_EQ, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addPrivateFunction(GET_HANDLE, null); // TODO
+        addPrivateFunction(GET_ITEM, NonTaggedGetItemResultType.INSTANCE);
+        addPrivateFunction(GET_DATA, null); // TODO
+        addPrivateFunction(GLOBAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
+        addPrivateFunction(GRAM_TOKENS, OrderedListOfAStringTypeComputer.INSTANCE);
+        addFunction(GLOBAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
+        addFunction(HASHED_GRAM_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
+        addPrivateFunction(HASHED_WORD_TOKENS, OrderedListOfAInt32TypeComputer.INSTANCE);
+        addPrivateFunction(INDEX_SEARCH, new IResultTypeComputer() {
 
             @Override
             public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
@@ -673,95 +651,95 @@
                 return BuiltinType.ANY; // TODO
             }
         });
-        add(INT8_CONSTRUCTOR, OptionalAInt8TypeComputer.INSTANCE);
-        add(INT16_CONSTRUCTOR, OptionalAInt16TypeComputer.INSTANCE);
-        add(INT32_CONSTRUCTOR, OptionalAInt32TypeComputer.INSTANCE);
-        add(INT64_CONSTRUCTOR, OptionalAInt64TypeComputer.INSTANCE);
-        add(LEN, OptionalAInt32TypeComputer.INSTANCE);
-        add(LIKE, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
-        add(LINE_CONSTRUCTOR, OptionalALineTypeComputer.INSTANCE);
-        add(LISTIFY, OrderedListConstructorResultType.INSTANCE);
-        add(LOCAL_AVG, NonTaggedLocalAvgTypeComputer.INSTANCE);
-        add(MAKE_FIELD_INDEX_HANDLE, null); // TODO
-        add(MAKE_FIELD_NAME_HANDLE, null); // TODO
-        add(MAX, NonTaggedSumTypeComputer.INSTANCE);
-        add(LOCAL_MAX, NonTaggedSumTypeComputer.INSTANCE);
-        add(MIN, NonTaggedSumTypeComputer.INSTANCE);
-        add(LOCAL_MIN, NonTaggedSumTypeComputer.INSTANCE);
-        add(NON_EMPTY_STREAM, ABooleanTypeComputer.INSTANCE);
-        add(NULL_CONSTRUCTOR, ANullTypeComputer.INSTANCE);
-        add(NUMERIC_UNARY_MINUS, NonTaggedUnaryMinusTypeComputer.INSTANCE);
-        add(NUMERIC_SUBTRACT, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
-        add(NUMERIC_MULTIPLY, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
-        add(NUMERIC_DIVIDE, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
-        add(NUMERIC_MOD, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
-        add(NUMERIC_IDIV, AInt32TypeComputer.INSTANCE);
+        addFunction(INT8_CONSTRUCTOR, OptionalAInt8TypeComputer.INSTANCE);
+        addFunction(INT16_CONSTRUCTOR, OptionalAInt16TypeComputer.INSTANCE);
+        addFunction(INT32_CONSTRUCTOR, OptionalAInt32TypeComputer.INSTANCE);
+        addFunction(INT64_CONSTRUCTOR, OptionalAInt64TypeComputer.INSTANCE);
+        addFunction(LEN, OptionalAInt32TypeComputer.INSTANCE);
+        addFunction(LIKE, BinaryBooleanOrNullFunctionTypeComputer.INSTANCE);
+        addFunction(LINE_CONSTRUCTOR, OptionalALineTypeComputer.INSTANCE);
+        addPrivateFunction(LISTIFY, OrderedListConstructorResultType.INSTANCE);
+        addPrivateFunction(LOCAL_AVG, NonTaggedLocalAvgTypeComputer.INSTANCE);
+        addPrivateFunction(MAKE_FIELD_INDEX_HANDLE, null); // TODO
+        addPrivateFunction(MAKE_FIELD_NAME_HANDLE, null); // TODO
+        addPrivateFunction(MAX, NonTaggedSumTypeComputer.INSTANCE);
+        addPrivateFunction(LOCAL_MAX, NonTaggedSumTypeComputer.INSTANCE);
+        addPrivateFunction(MIN, NonTaggedSumTypeComputer.INSTANCE);
+        addPrivateFunction(LOCAL_MIN, NonTaggedSumTypeComputer.INSTANCE);
+        addPrivateFunction(NON_EMPTY_STREAM, ABooleanTypeComputer.INSTANCE);
+        addFunction(NULL_CONSTRUCTOR, ANullTypeComputer.INSTANCE);
+        addFunction(NUMERIC_UNARY_MINUS, NonTaggedUnaryMinusTypeComputer.INSTANCE);
+        addFunction(NUMERIC_SUBTRACT, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
+        addFunction(NUMERIC_MULTIPLY, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
+        addFunction(NUMERIC_DIVIDE, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
+        addFunction(NUMERIC_MOD, NonTaggedNumericAddSubMulDivTypeComputer.INSTANCE);
+        addFunction(NUMERIC_IDIV, AInt32TypeComputer.INSTANCE);
 
-        add(NUMERIC_ABS, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
-        add(NUMERIC_CEILING, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
-        add(NUMERIC_FLOOR, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
-        add(NUMERIC_ROUND, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
-        add(NUMERIC_ROUND_HALF_TO_EVEN, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
-        add(NUMERIC_ROUND_HALF_TO_EVEN2, NonTaggedNumericRoundHalfToEven2TypeComputer.INSTANCE);
+        addFunction(NUMERIC_ABS, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
+        addFunction(NUMERIC_CEILING, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
+        addFunction(NUMERIC_FLOOR, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
+        addFunction(NUMERIC_ROUND, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
+        addFunction(NUMERIC_ROUND_HALF_TO_EVEN, NonTaggedNumericUnaryFunctionTypeComputer.INSTANCE);
+        addFunction(NUMERIC_ROUND_HALF_TO_EVEN2, NonTaggedNumericRoundHalfToEven2TypeComputer.INSTANCE);
 
-        add(STRING_TO_CODEPOINT, OrderedListOfAInt32TypeComputer.INSTANCE);
-        add(CODEPOINT_TO_STRING, AStringTypeComputer.INSTANCE);
-        add(STRING_CONCAT, OptionalAStringTypeComputer.INSTANCE);
-        add(SUBSTRING2, Substring2TypeComputer.INSTANCE);
-        add(STRING_LENGTH, UnaryStringInt32OrNullTypeComputer.INSTANCE);
-        add(STRING_LOWERCASE, UnaryStringOrNullTypeComputer.INSTANCE);
-        add(STRING_START_WITH, BinaryStringBoolOrNullTypeComputer.INSTANCE);
-        add(STRING_END_WITH, BinaryStringBoolOrNullTypeComputer.INSTANCE);
-        add(STRING_MATCHES, BinaryStringBoolOrNullTypeComputer.INSTANCE);
-        add(STRING_MATCHES_WITH_FLAG, TripleStringBoolOrNullTypeComputer.INSTANCE);
-        add(STRING_REPLACE, TripleStringStringOrNullTypeComputer.INSTANCE);
-        add(STRING_REPLACE_WITH_FLAG, QuadStringStringOrNullTypeComputer.INSTANCE);
-        add(SUBSTRING_BEFORE, BinaryStringStringOrNullTypeComputer.INSTANCE);
-        add(SUBSTRING_AFTER, BinaryStringStringOrNullTypeComputer.INSTANCE);
-        add(STRING_EQUAL, BinaryStringBoolOrNullTypeComputer.INSTANCE);
-        add(STRING_JOIN, AStringTypeComputer.INSTANCE);
+        addFunction(STRING_TO_CODEPOINT, OrderedListOfAInt32TypeComputer.INSTANCE);
+        addFunction(CODEPOINT_TO_STRING, AStringTypeComputer.INSTANCE);
+        addFunction(STRING_CONCAT, OptionalAStringTypeComputer.INSTANCE);
+        addFunction(SUBSTRING2, Substring2TypeComputer.INSTANCE);
+        addFunction(STRING_LENGTH, UnaryStringInt32OrNullTypeComputer.INSTANCE);
+        addFunction(STRING_LOWERCASE, UnaryStringOrNullTypeComputer.INSTANCE);
+        addFunction(STRING_START_WITH, BinaryStringBoolOrNullTypeComputer.INSTANCE);
+        addFunction(STRING_END_WITH, BinaryStringBoolOrNullTypeComputer.INSTANCE);
+        addFunction(STRING_MATCHES, BinaryStringBoolOrNullTypeComputer.INSTANCE);
+        addFunction(STRING_MATCHES_WITH_FLAG, TripleStringBoolOrNullTypeComputer.INSTANCE);
+        addFunction(STRING_REPLACE, TripleStringStringOrNullTypeComputer.INSTANCE);
+        addFunction(STRING_REPLACE_WITH_FLAG, QuadStringStringOrNullTypeComputer.INSTANCE);
+        addFunction(SUBSTRING_BEFORE, BinaryStringStringOrNullTypeComputer.INSTANCE);
+        addFunction(SUBSTRING_AFTER, BinaryStringStringOrNullTypeComputer.INSTANCE);
+        addPrivateFunction(STRING_EQUAL, BinaryStringBoolOrNullTypeComputer.INSTANCE);
+        addFunction(STRING_JOIN, AStringTypeComputer.INSTANCE);
 
-        add(OPEN_RECORD_CONSTRUCTOR, OpenRecordConstructorResultType.INSTANCE);
-        add(ORDERED_LIST_CONSTRUCTOR, OrderedListConstructorResultType.INSTANCE);
-        add(POINT_CONSTRUCTOR, OptionalAPointTypeComputer.INSTANCE);
-        add(POINT3D_CONSTRUCTOR, OptionalAPoint3DTypeComputer.INSTANCE);
-        add(POLYGON_CONSTRUCTOR, OptionalAPolygonTypeComputer.INSTANCE);
-        add(PREFIX_LEN_JACCARD, AInt32TypeComputer.INSTANCE);
-        add(RANGE, AInt32TypeComputer.INSTANCE);
-        add(RECTANGLE_CONSTRUCTOR, OptionalARectangleTypeComputer.INSTANCE);
+        addPrivateFunction(OPEN_RECORD_CONSTRUCTOR, OpenRecordConstructorResultType.INSTANCE);
+        addPrivateFunction(ORDERED_LIST_CONSTRUCTOR, OrderedListConstructorResultType.INSTANCE);
+        addFunction(POINT_CONSTRUCTOR, OptionalAPointTypeComputer.INSTANCE);
+        addFunction(POINT3D_CONSTRUCTOR, OptionalAPoint3DTypeComputer.INSTANCE);
+        addFunction(POLYGON_CONSTRUCTOR, OptionalAPolygonTypeComputer.INSTANCE);
+        addPrivateFunction(PREFIX_LEN_JACCARD, AInt32TypeComputer.INSTANCE);
+        addFunction(RANGE, AInt32TypeComputer.INSTANCE);
+        addFunction(RECTANGLE_CONSTRUCTOR, OptionalARectangleTypeComputer.INSTANCE);
         // add(RECORD_TYPE_CONSTRUCTOR, null);
-        add(SCALAR_AVG, ScalarVersionOfAggregateResultType.INSTANCE);
-        add(SCALAR_COUNT, AInt32TypeComputer.INSTANCE);
-        add(SCALAR_GLOBAL_AVG, ScalarVersionOfAggregateResultType.INSTANCE);
-        add(SCALAR_LOCAL_AVG, ScalarVersionOfAggregateResultType.INSTANCE);
-        add(SCALAR_MAX, ScalarVersionOfAggregateResultType.INSTANCE);
-        add(SCALAR_MIN, ScalarVersionOfAggregateResultType.INSTANCE);
-        add(SCALAR_SUM, ScalarVersionOfAggregateResultType.INSTANCE);
-        add(SCAN_COLLECTION, NonTaggedCollectionMemberResultType.INSTANCE);
-        add(SERIAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
-        add(SERIAL_COUNT, AInt32TypeComputer.INSTANCE);
-        add(SERIAL_GLOBAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
-        add(SERIAL_LOCAL_AVG, NonTaggedLocalAvgTypeComputer.INSTANCE);
-        add(SERIAL_SUM, NonTaggedSumTypeComputer.INSTANCE);
-        add(SERIAL_LOCAL_SUM, NonTaggedSumTypeComputer.INSTANCE);
-        add(SIMILARITY_JACCARD, AFloatTypeComputer.INSTANCE);
-        add(SIMILARITY_JACCARD_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
-        add(SIMILARITY_JACCARD_SORTED, AFloatTypeComputer.INSTANCE);
-        add(SIMILARITY_JACCARD_SORTED_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
-        add(SIMILARITY_JACCARD_PREFIX, AFloatTypeComputer.INSTANCE);
-        add(SIMILARITY_JACCARD_PREFIX_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
-        add(SPATIAL_AREA, ADoubleTypeComputer.INSTANCE);
-        add(SPATIAL_CELL, ARectangleTypeComputer.INSTANCE);
-        add(SPATIAL_DISTANCE, ADoubleTypeComputer.INSTANCE);
-        add(SPATIAL_INTERSECT, ABooleanTypeComputer.INSTANCE);
-        add(GET_POINT_X_COORDINATE_ACCESSOR, ADoubleTypeComputer.INSTANCE);
-        add(GET_POINT_Y_COORDINATE_ACCESSOR, ADoubleTypeComputer.INSTANCE);
-        add(GET_CIRCLE_RADIUS_ACCESSOR, ADoubleTypeComputer.INSTANCE);
-        add(GET_CIRCLE_CENTER_ACCESSOR, APointTypeComputer.INSTANCE);
-        add(GET_POINTS_LINE_RECTANGLE_POLYGON_ACCESSOR, OrderedListOfAPointTypeComputer.INSTANCE);
-        add(STARTS_WITH, ABooleanTypeComputer.INSTANCE);
-        add(STRING_CONSTRUCTOR, OptionalAStringTypeComputer.INSTANCE);
-        add(SUBSET_COLLECTION, new IResultTypeComputer() {
+        addFunction(SCALAR_AVG, ScalarVersionOfAggregateResultType.INSTANCE);
+        addFunction(SCALAR_COUNT, AInt32TypeComputer.INSTANCE);
+        addPrivateFunction(SCALAR_GLOBAL_AVG, ScalarVersionOfAggregateResultType.INSTANCE);
+        addPrivateFunction(SCALAR_LOCAL_AVG, ScalarVersionOfAggregateResultType.INSTANCE);
+        addFunction(SCALAR_MAX, ScalarVersionOfAggregateResultType.INSTANCE);
+        addFunction(SCALAR_MIN, ScalarVersionOfAggregateResultType.INSTANCE);
+        addFunction(SCALAR_SUM, ScalarVersionOfAggregateResultType.INSTANCE);
+        addPrivateFunction(SCAN_COLLECTION, NonTaggedCollectionMemberResultType.INSTANCE);
+        addPrivateFunction(SERIAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
+        addPrivateFunction(SERIAL_COUNT, AInt32TypeComputer.INSTANCE);
+        addPrivateFunction(SERIAL_GLOBAL_AVG, OptionalADoubleTypeComputer.INSTANCE);
+        addPrivateFunction(SERIAL_LOCAL_AVG, NonTaggedLocalAvgTypeComputer.INSTANCE);
+        addPrivateFunction(SERIAL_SUM, NonTaggedSumTypeComputer.INSTANCE);
+        addPrivateFunction(SERIAL_LOCAL_SUM, NonTaggedSumTypeComputer.INSTANCE);
+        addFunction(SIMILARITY_JACCARD, AFloatTypeComputer.INSTANCE);
+        addFunction(SIMILARITY_JACCARD_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
+        addPrivateFunction(SIMILARITY_JACCARD_SORTED, AFloatTypeComputer.INSTANCE);
+        addPrivateFunction(SIMILARITY_JACCARD_SORTED_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
+        addPrivateFunction(SIMILARITY_JACCARD_PREFIX, AFloatTypeComputer.INSTANCE);
+        addPrivateFunction(SIMILARITY_JACCARD_PREFIX_CHECK, OrderedListOfAnyTypeComputer.INSTANCE);
+        addFunction(SPATIAL_AREA, ADoubleTypeComputer.INSTANCE);
+        addFunction(SPATIAL_CELL, ARectangleTypeComputer.INSTANCE);
+        addFunction(SPATIAL_DISTANCE, ADoubleTypeComputer.INSTANCE);
+        addFunction(SPATIAL_INTERSECT, ABooleanTypeComputer.INSTANCE);
+        addFunction(GET_POINT_X_COORDINATE_ACCESSOR, ADoubleTypeComputer.INSTANCE);
+        addFunction(GET_POINT_Y_COORDINATE_ACCESSOR, ADoubleTypeComputer.INSTANCE);
+        addFunction(GET_CIRCLE_RADIUS_ACCESSOR, ADoubleTypeComputer.INSTANCE);
+        addFunction(GET_CIRCLE_CENTER_ACCESSOR, APointTypeComputer.INSTANCE);
+        addFunction(GET_POINTS_LINE_RECTANGLE_POLYGON_ACCESSOR, OrderedListOfAPointTypeComputer.INSTANCE);
+        addFunction(STARTS_WITH, ABooleanTypeComputer.INSTANCE);
+        addFunction(STRING_CONSTRUCTOR, OptionalAStringTypeComputer.INSTANCE);
+        addPrivateFunction(SUBSET_COLLECTION, new IResultTypeComputer() {
 
             @Override
             public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
@@ -798,20 +776,20 @@
                 }
             }
         });
-        add(SUBSTRING, SubstringTypeComputer.INSTANCE);
-        add(SUM, NonTaggedSumTypeComputer.INSTANCE);
-        add(LOCAL_SUM, NonTaggedSumTypeComputer.INSTANCE);
-        add(SWITCH_CASE, NonTaggedSwitchCaseComputer.INSTANCE);
-        add(REG_EXP, ABooleanTypeComputer.INSTANCE);
-        add(INJECT_FAILURE, InjectFailureTypeComputer.INSTANCE);
-        add(CAST_RECORD, CastRecordResultTypeComputer.INSTANCE);
-        add(CAST_LIST, CastListResultTypeComputer.INSTANCE);
+        addFunction(SUBSTRING, SubstringTypeComputer.INSTANCE);
+        addPrivateFunction(SUM, NonTaggedSumTypeComputer.INSTANCE);
+        addPrivateFunction(LOCAL_SUM, NonTaggedSumTypeComputer.INSTANCE);
+        addFunction(SWITCH_CASE, NonTaggedSwitchCaseComputer.INSTANCE);
+        addPrivateFunction(REG_EXP, ABooleanTypeComputer.INSTANCE);
+        addFunction(INJECT_FAILURE, InjectFailureTypeComputer.INSTANCE);
+        addPrivateFunction(CAST_RECORD, CastRecordResultTypeComputer.INSTANCE);
+        addFunction(CAST_LIST, CastListResultTypeComputer.INSTANCE);
 
-        add(TID, AInt32TypeComputer.INSTANCE);
-        add(TIME_CONSTRUCTOR, OptionalATimeTypeComputer.INSTANCE);
-        add(TYPE_OF, null); // TODO
-        add(UNORDERED_LIST_CONSTRUCTOR, UnorderedListConstructorResultType.INSTANCE);
-        add(WORD_TOKENS, new IResultTypeComputer() {
+        addFunction(TID, AInt32TypeComputer.INSTANCE);
+        addFunction(TIME_CONSTRUCTOR, OptionalATimeTypeComputer.INSTANCE);
+        addFunction(TYPE_OF, null); // TODO
+        addPrivateFunction(UNORDERED_LIST_CONSTRUCTOR, UnorderedListConstructorResultType.INSTANCE);
+        addFunction(WORD_TOKENS, new IResultTypeComputer() {
 
             @Override
             public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
@@ -821,68 +799,68 @@
         });
 
         // temporal type accessors
-        add(ACCESSOR_TEMPORAL_YEAR, OptionalAInt32TypeComputer.INSTANCE);
-        add(ACCESSOR_TEMPORAL_MONTH, OptionalAInt32TypeComputer.INSTANCE);
-        add(ACCESSOR_TEMPORAL_DAY, OptionalAInt32TypeComputer.INSTANCE);
-        add(ACCESSOR_TEMPORAL_HOUR, OptionalAInt32TypeComputer.INSTANCE);
-        add(ACCESSOR_TEMPORAL_MIN, OptionalAInt32TypeComputer.INSTANCE);
-        add(ACCESSOR_TEMPORAL_SEC, OptionalAInt32TypeComputer.INSTANCE);
-        add(ACCESSOR_TEMPORAL_MILLISEC, OptionalAInt32TypeComputer.INSTANCE);
-        add(ACCESSOR_TEMPORAL_INTERVAL_START, OptionalATemporalInstanceTypeComputer.INSTANCE);
-        add(ACCESSOR_TEMPORAL_INTERVAL_END, OptionalATemporalInstanceTypeComputer.INSTANCE);
+        addFunction(ACCESSOR_TEMPORAL_YEAR, OptionalAInt32TypeComputer.INSTANCE);
+        addFunction(ACCESSOR_TEMPORAL_MONTH, OptionalAInt32TypeComputer.INSTANCE);
+        addFunction(ACCESSOR_TEMPORAL_DAY, OptionalAInt32TypeComputer.INSTANCE);
+        addFunction(ACCESSOR_TEMPORAL_HOUR, OptionalAInt32TypeComputer.INSTANCE);
+        addFunction(ACCESSOR_TEMPORAL_MIN, OptionalAInt32TypeComputer.INSTANCE);
+        addFunction(ACCESSOR_TEMPORAL_SEC, OptionalAInt32TypeComputer.INSTANCE);
+        addFunction(ACCESSOR_TEMPORAL_MILLISEC, OptionalAInt32TypeComputer.INSTANCE);
+        addFunction(ACCESSOR_TEMPORAL_INTERVAL_START, OptionalATemporalInstanceTypeComputer.INSTANCE);
+        addFunction(ACCESSOR_TEMPORAL_INTERVAL_END, OptionalATemporalInstanceTypeComputer.INSTANCE);
 
         // temporal functions
-        add(DATE_FROM_UNIX_TIME_IN_DAYS, OptionalADateTypeComputer.INSTANCE);
-        add(DATE_FROM_DATETIME, OptionalADateTypeComputer.INSTANCE);
-        add(ADD_DATE_DURATION, OptionalADateTypeComputer.INSTANCE);
-        add(SUBTRACT_DATE, OptionalADurationTypeComputer.INSTANCE);
-        add(TIME_FROM_UNIX_TIME_IN_MS, OptionalATimeTypeComputer.INSTANCE);
-        add(TIME_FROM_DATETIME, OptionalATimeTypeComputer.INSTANCE);
-        add(SUBTRACT_TIME, OptionalADurationTypeComputer.INSTANCE);
-        add(ADD_TIME_DURATION, OptionalATimeTypeComputer.INSTANCE);
-        add(DATETIME_FROM_DATE_TIME, OptionalADateTimeTypeComputer.INSTANCE);
-        add(DATETIME_FROM_UNIX_TIME_IN_MS, OptionalADateTimeTypeComputer.INSTANCE);
-        add(SUBTRACT_DATETIME, OptionalADurationTypeComputer.INSTANCE);
-        add(ADD_DATETIME_DURATION, OptionalADateTimeTypeComputer.INSTANCE);
-        add(CALENDAR_DURATION_FROM_DATETIME, OptionalADurationTypeComputer.INSTANCE);
-        add(CALENDAR_DURATION_FROM_DATE, OptionalADurationTypeComputer.INSTANCE);
-        add(ADJUST_DATETIME_FOR_TIMEZONE, OptionalAStringTypeComputer.INSTANCE);
-        add(ADJUST_TIME_FOR_TIMEZONE, OptionalAStringTypeComputer.INSTANCE);
-        add(INTERVAL_BEFORE, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_AFTER, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_MEETS, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_MET_BY, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_OVERLAPS, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_OVERLAPPED_BY, OptionalABooleanTypeComputer.INSTANCE);
-        add(OVERLAP, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_STARTS, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_STARTED_BY, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_COVERS, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_COVERED_BY, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_ENDS, OptionalABooleanTypeComputer.INSTANCE);
-        add(INTERVAL_ENDED_BY, OptionalABooleanTypeComputer.INSTANCE);
-        add(CURRENT_DATE, ADateTypeComputer.INSTANCE);
-        add(CURRENT_TIME, ATimeTypeComputer.INSTANCE);
-        add(CURRENT_DATETIME, ADateTimeTypeComputer.INSTANCE);
-        add(DAY_TIME_DURATION_GREATER_THAN, OptionalABooleanTypeComputer.INSTANCE);
-        add(DAY_TIME_DURATION_LESS_THAN, OptionalABooleanTypeComputer.INSTANCE);
-        add(YEAR_MONTH_DURATION_GREATER_THAN, OptionalABooleanTypeComputer.INSTANCE);
-        add(YEAR_MONTH_DURATION_LESS_THAN, OptionalABooleanTypeComputer.INSTANCE);
-        add(DURATION_EQUAL, OptionalABooleanTypeComputer.INSTANCE);
-        add(DURATION_FROM_MONTHS, OptionalADurationTypeComputer.INSTANCE);
-        add(DURATION_FROM_MILLISECONDS, OptionalADurationTypeComputer.INSTANCE);
-        add(MONTHS_FROM_YEAR_MONTH_DURATION, OptionalAInt32TypeComputer.INSTANCE);
-        add(MILLISECONDS_FROM_DAY_TIME_DURATION, OptionalAInt64TypeComputer.INSTANCE);
-        add(GET_DAY_TIME_DURATION, OptionalADayTimeDurationTypeComputer.INSTANCE);
-        add(GET_YEAR_MONTH_DURATION, OptionalAYearMonthDurationTypeComputer.INSTANCE);
+        addFunction(DATE_FROM_UNIX_TIME_IN_DAYS, OptionalADateTypeComputer.INSTANCE);
+        addFunction(DATE_FROM_DATETIME, OptionalADateTypeComputer.INSTANCE);
+        addFunction(ADD_DATE_DURATION, OptionalADateTypeComputer.INSTANCE);
+        addFunction(SUBTRACT_DATE, OptionalADurationTypeComputer.INSTANCE);
+        addFunction(TIME_FROM_UNIX_TIME_IN_MS, OptionalATimeTypeComputer.INSTANCE);
+        addFunction(TIME_FROM_DATETIME, OptionalATimeTypeComputer.INSTANCE);
+        addFunction(SUBTRACT_TIME, OptionalADurationTypeComputer.INSTANCE);
+        addFunction(ADD_TIME_DURATION, OptionalATimeTypeComputer.INSTANCE);
+        addFunction(DATETIME_FROM_DATE_TIME, OptionalADateTimeTypeComputer.INSTANCE);
+        addFunction(DATETIME_FROM_UNIX_TIME_IN_MS, OptionalADateTimeTypeComputer.INSTANCE);
+        addFunction(SUBTRACT_DATETIME, OptionalADurationTypeComputer.INSTANCE);
+        addFunction(ADD_DATETIME_DURATION, OptionalADateTimeTypeComputer.INSTANCE);
+        addFunction(CALENDAR_DURATION_FROM_DATETIME, OptionalADurationTypeComputer.INSTANCE);
+        addFunction(CALENDAR_DURATION_FROM_DATE, OptionalADurationTypeComputer.INSTANCE);
+        addFunction(ADJUST_DATETIME_FOR_TIMEZONE, OptionalAStringTypeComputer.INSTANCE);
+        addFunction(ADJUST_TIME_FOR_TIMEZONE, OptionalAStringTypeComputer.INSTANCE);
+        addFunction(INTERVAL_BEFORE, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_AFTER, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_MEETS, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_MET_BY, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_OVERLAPS, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_OVERLAPPED_BY, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(OVERLAP, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_STARTS, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_STARTED_BY, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_COVERS, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_COVERED_BY, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_ENDS, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(INTERVAL_ENDED_BY, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(CURRENT_DATE, ADateTypeComputer.INSTANCE);
+        addFunction(CURRENT_TIME, ATimeTypeComputer.INSTANCE);
+        addFunction(CURRENT_DATETIME, ADateTimeTypeComputer.INSTANCE);
+        addFunction(DAY_TIME_DURATION_GREATER_THAN, OptionalABooleanTypeComputer.INSTANCE);
+        addPrivateFunction(DAY_TIME_DURATION_LESS_THAN, OptionalABooleanTypeComputer.INSTANCE);
+        addPrivateFunction(YEAR_MONTH_DURATION_GREATER_THAN, OptionalABooleanTypeComputer.INSTANCE);
+        addPrivateFunction(YEAR_MONTH_DURATION_LESS_THAN, OptionalABooleanTypeComputer.INSTANCE);
+        addPrivateFunction(DURATION_EQUAL, OptionalABooleanTypeComputer.INSTANCE);
+        addFunction(DURATION_FROM_MONTHS, OptionalADurationTypeComputer.INSTANCE);
+        addFunction(DURATION_FROM_MILLISECONDS, OptionalADurationTypeComputer.INSTANCE);
+        addFunction(MONTHS_FROM_YEAR_MONTH_DURATION, OptionalAInt32TypeComputer.INSTANCE);
+        addFunction(MILLISECONDS_FROM_DAY_TIME_DURATION, OptionalAInt64TypeComputer.INSTANCE);
+        addFunction(GET_DAY_TIME_DURATION, OptionalADayTimeDurationTypeComputer.INSTANCE);
+        addFunction(GET_YEAR_MONTH_DURATION, OptionalAYearMonthDurationTypeComputer.INSTANCE);
 
         // interval constructors
-        add(INTERVAL_CONSTRUCTOR_DATE, OptionalAIntervalTypeComputer.INSTANCE);
-        add(INTERVAL_CONSTRUCTOR_TIME, OptionalAIntervalTypeComputer.INSTANCE);
-        add(INTERVAL_CONSTRUCTOR_DATETIME, OptionalAIntervalTypeComputer.INSTANCE);
-        add(INTERVAL_CONSTRUCTOR_START_FROM_DATE, OptionalAIntervalTypeComputer.INSTANCE);
-        add(INTERVAL_CONSTRUCTOR_START_FROM_DATETIME, OptionalAIntervalTypeComputer.INSTANCE);
-        add(INTERVAL_CONSTRUCTOR_START_FROM_TIME, OptionalAIntervalTypeComputer.INSTANCE);
+        addFunction(INTERVAL_CONSTRUCTOR_DATE, OptionalAIntervalTypeComputer.INSTANCE);
+        addFunction(INTERVAL_CONSTRUCTOR_TIME, OptionalAIntervalTypeComputer.INSTANCE);
+        addFunction(INTERVAL_CONSTRUCTOR_DATETIME, OptionalAIntervalTypeComputer.INSTANCE);
+        addFunction(INTERVAL_CONSTRUCTOR_START_FROM_DATE, OptionalAIntervalTypeComputer.INSTANCE);
+        addFunction(INTERVAL_CONSTRUCTOR_START_FROM_DATETIME, OptionalAIntervalTypeComputer.INSTANCE);
+        addFunction(INTERVAL_CONSTRUCTOR_START_FROM_TIME, OptionalAIntervalTypeComputer.INSTANCE);
 
         String metadataFunctionLoaderClassName = "edu.uci.ics.asterix.metadata.functions.MetadataBuiltinFunctions";
         try {
@@ -976,8 +954,27 @@
         return datasetFunctions.contains(getAsterixFunctionInfo(fi));
     }
 
-    public static boolean isBuiltinCompilerFunction(FunctionIdentifier fi) {
-        return builtinFunctionsSet.keySet().contains(getAsterixFunctionInfo(fi));
+    public static boolean isBuiltinCompilerFunction(FunctionIdentifier fi, boolean includePrivateFunctions) {
+        return builtinPublicFunctionsSet.keySet().contains(getAsterixFunctionInfo(fi));
+    }
+
+    public static boolean isBuiltinCompilerFunction(FunctionSignature signature, boolean includePrivateFunctions) {
+
+        FunctionIdentifier fi = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, signature.getName(),
+                signature.getArity());
+        IFunctionInfo finfo = getAsterixFunctionInfo(fi);
+        if (builtinPublicFunctionsSet.keySet().contains(finfo)
+                || (includePrivateFunctions && builtinPrivateFunctionsSet.keySet().contains(finfo))) {
+            return true;
+        }
+        fi = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, signature.getName(), signature.getArity());
+        finfo = getAsterixFunctionInfo(fi);
+        if (builtinPublicFunctionsSet.keySet().contains(finfo)
+                || (includePrivateFunctions && builtinPrivateFunctionsSet.keySet().contains(finfo))) {
+            return true;
+        }
+
+        return false;
     }
 
     public static boolean isBuiltinAggregateFunction(FunctionIdentifier fi) {
@@ -1062,9 +1059,16 @@
         return finfo == null ? null : finfo.getFunctionIdentifier();
     }
 
-    public static void add(FunctionIdentifier fi, IResultTypeComputer typeComputer) {
+    public static void addFunction(FunctionIdentifier fi, IResultTypeComputer typeComputer) {
         IFunctionInfo functionInfo = getAsterixFunctionInfo(fi);
-        builtinFunctionsSet.put(functionInfo, functionInfo);
+        builtinPublicFunctionsSet.put(functionInfo, functionInfo);
+        funTypeComputer.put(functionInfo, typeComputer);
+        registeredFunctions.put(fi);
+    }
+
+    public static void addPrivateFunction(FunctionIdentifier fi, IResultTypeComputer typeComputer) {
+        IFunctionInfo functionInfo = getAsterixFunctionInfo(fi);
+        builtinPrivateFunctionsSet.put(functionInfo, functionInfo);
         funTypeComputer.put(functionInfo, typeComputer);
         registeredFunctions.put(fi);
     }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java
index 2d3018d..7b82c41 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java
@@ -1,6 +1,5 @@
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
-
 import java.util.ArrayList;
 import java.util.List;
 
@@ -17,20 +16,21 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
 
 /**
- *
  * @author Xiaoyu Ma
  */
-public class UnaryStringInt32OrNullTypeComputer implements IResultTypeComputer  {   
-    
+public class UnaryStringInt32OrNullTypeComputer implements IResultTypeComputer {
+
     public static final UnaryStringInt32OrNullTypeComputer INSTANCE = new UnaryStringInt32OrNullTypeComputer();
-    private UnaryStringInt32OrNullTypeComputer() {}
-    
+
+    private UnaryStringInt32OrNullTypeComputer() {
+    }
+
     @Override
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
-        if(fce.getArguments().isEmpty())
-            throw new AlgebricksException("Wrong Argument Number.");        
+        if (fce.getArguments().isEmpty())
+            throw new AlgebricksException("Wrong Argument Number.");
         ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
         IAType t0;
         try {
@@ -38,21 +38,23 @@
         } catch (AlgebricksException e) {
             throw new AlgebricksException(e);
         }
-        if (t0.getTypeTag() != ATypeTag.NULL &&
-            t0.getTypeTag() != ATypeTag.STRING ) {
+        if (t0.getTypeTag() != ATypeTag.NULL
+                && t0.getTypeTag() != ATypeTag.STRING
+                && (t0.getTypeTag() == ATypeTag.UNION && !((AUnionType) t0).getUnionList()
+                        .contains(BuiltinType.ASTRING))) {
             throw new NotImplementedException("Expects String Type.");
-        }     
-        
+        }
+
         List<IAType> unionList = new ArrayList<IAType>();
         unionList.add(BuiltinType.ANULL);
-        if(t0.getTypeTag() == ATypeTag.NULL) {
+        if (t0.getTypeTag() == ATypeTag.NULL) { 
             return BuiltinType.ANULL;
         }
-        
-        if(t0.getTypeTag() == ATypeTag.STRING) {
+
+        if (t0.getTypeTag() == ATypeTag.STRING || t0.getTypeTag().equals(ATypeTag.UNION)) {
             unionList.add(BuiltinType.AINT32);
-        }        
-        
+        }
+
         return new AUnionType(unionList, "String-length-Result");
-    }      
+    }
 }
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 91ce7ed5..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>