taking checkpoint

git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_functions_stabilization@651 eaa15691-b419-025a-1212-ee371bd00084
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 ae2559b..74779ea 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
@@ -153,7 +153,8 @@
 
         IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(metadata.getDefaultDataverseName(), datasetName,
+                        indexName);
         Pair<IFileSplitProvider, IFileSplitProvider> fileSplitProviders = metadata
                 .getInvertedIndexFileSplitProviders(secondarySplitsAndConstraint.first);
 
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetAsterixPhysicalOperatorsRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetAsterixPhysicalOperatorsRule.java
index 74f790f..9b38678 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetAsterixPhysicalOperatorsRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SetAsterixPhysicalOperatorsRule.java
@@ -149,7 +149,7 @@
                         AccessMethodJobGenParams jobGenParams = new AccessMethodJobGenParams();
                         jobGenParams.readFromFuncArgs(f.getArguments());
                         AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
-                        String dataverseName = mp.getMetadataDeclarations().getDataverseName();
+                        String dataverseName = mp.getMetadataDeclarations().getDefaultDataverseName();
                         AqlSourceId dataSourceId = new AqlSourceId(dataverseName, jobGenParams.getDatasetName());
                         IDataSourceIndex<String, AqlSourceId> dsi = mp.findDataSourceIndex(jobGenParams.getIndexName(),
                                 dataSourceId);
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java
index f25a671..3b81b96 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/UnnestToDataScanRule.java
@@ -6,6 +6,7 @@
 import org.apache.commons.lang3.mutable.Mutable;
 
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
+import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlDataSource;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
@@ -73,16 +74,28 @@
                 if (acv2.getObject().getType().getTypeTag() != ATypeTag.STRING) {
                     return false;
                 }
-                String datasetName = ((AString) acv2.getObject()).getStringValue();
+                String datasetArg = ((AString) acv2.getObject()).getStringValue();
 
                 AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
                 AqlCompiledMetadataDeclarations metadata = mp.getMetadataDeclarations();
-                Dataset dataset = metadata.findDataset(datasetName);
-                if (dataset == null) {
-                    throw new AlgebricksException("Could not find dataset " + datasetName);
+                String[] datasetNameComponents = datasetArg.split("\\.");
+                String dataverseName;
+                String datasetName;
+                if (datasetNameComponents.length == 1) {
+                    dataverseName = metadata.getDefaultDataverseName();
+                    datasetName = datasetNameComponents[0];
+                } else {
+                    dataverseName = datasetNameComponents[0];
+                    datasetName = datasetNameComponents[1];
                 }
 
-                AqlSourceId asid = new AqlSourceId(metadata.getDataverseName(), datasetName);
+                Dataset dataset = metadata.findDataset(dataverseName, datasetName);
+                if (dataset == null) {
+                    throw new AlgebricksException("Could not find dataset " + datasetName + " in dataverse "
+                            + dataverseName);
+                }
+
+                AqlSourceId asid = new AqlSourceId(dataverseName, datasetName);
 
                 ArrayList<LogicalVariable> v = new ArrayList<LogicalVariable>();
 
@@ -135,7 +148,7 @@
                     throw new IllegalArgumentException("invalid dataset type:" + dataset.getDatasetType());
                 }
 
-                AqlSourceId asid = new AqlSourceId(metadata.getDataverseName(), datasetName);
+                AqlSourceId asid = new AqlSourceId(metadata.getDefaultDataverseName(), datasetName);
 
                 ArrayList<LogicalVariable> v = new ArrayList<LogicalVariable>();
 
@@ -165,7 +178,7 @@
 
     private AqlDataSource createDummyFeedDataSource(AqlSourceId aqlId, Dataset dataset,
             AqlCompiledMetadataDeclarations metadata) throws AlgebricksException {
-        if (!aqlId.getDataverseName().equals(metadata.getDataverseName())) {
+        if (!aqlId.getDataverseName().equals(metadata.getDefaultDataverseName())) {
             return null;
         }
         String tName = dataset.getItemTypeName();
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 5f31bd1..75486c2 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
@@ -8,14 +8,23 @@
 
 import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.expression.DataverseDecl;
+import edu.uci.ics.asterix.aql.expression.DataverseDropStatement;
+import edu.uci.ics.asterix.aql.expression.DropStatement;
+import edu.uci.ics.asterix.aql.expression.FunctionDropStatement;
+import edu.uci.ics.asterix.aql.expression.NodeGroupDropStatement;
 import edu.uci.ics.asterix.aql.expression.SetStatement;
 import edu.uci.ics.asterix.aql.expression.TypeDecl;
 import edu.uci.ics.asterix.aql.expression.WriteStatement;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
 import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinArtifactMap;
+import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinArtifactMap.ARTIFACT_KIND;
+import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.data.IAWriterFactory;
 import edu.uci.ics.hyracks.algebricks.runtime.writers.PrinterBasedWriterFactory;
 import edu.uci.ics.hyracks.api.io.FileReference;
@@ -24,13 +33,13 @@
 public abstract class AbstractAqlTranslator {
 
     public AqlCompiledMetadataDeclarations compileMetadata(MetadataTransactionContext mdTxnCtx,
-            List<Statement> statements, boolean online) throws AlgebricksException, MetadataException {
+            List<Statement> statements, boolean online) throws AsterixException, MetadataException {
         List<TypeDecl> typeDeclarations = new ArrayList<TypeDecl>();
         Map<String, String> config = new HashMap<String, String>();
 
         FileSplit outputFile = null;
         IAWriterFactory writerFactory = null;
-        String dataverseName = MetadataConstants.METADATA_DATAVERSE_NAME;
+        String defaultDataverse = null;
         for (Statement stmt : statements) {
             switch (stmt.getKind()) {
                 case TYPE_DECL: {
@@ -39,12 +48,12 @@
                 }
                 case DATAVERSE_DECL: {
                     DataverseDecl dstmt = (DataverseDecl) stmt;
-                    dataverseName = dstmt.getDataverseName().toString();
+                    defaultDataverse = dstmt.getDataverseName().toString();
                     break;
                 }
                 case WRITE: {
                     if (outputFile != null) {
-                        throw new AlgebricksException("Multiple 'write' statements.");
+                        throw new AsterixException("Multiple 'write' statements.");
                     }
                     WriteStatement ws = (WriteStatement) stmt;
                     File f = new File(ws.getFileName());
@@ -53,7 +62,7 @@
                         try {
                             writerFactory = (IAWriterFactory) Class.forName(ws.getWriterClassName()).newInstance();
                         } catch (Exception e) {
-                            throw new AlgebricksException(e);
+                            throw new AsterixException(e);
                         }
                     }
                     break;
@@ -71,19 +80,63 @@
             writerFactory = PrinterBasedWriterFactory.INSTANCE;
         }
 
-        MetadataDeclTranslator metadataTranslator = new MetadataDeclTranslator(mdTxnCtx, dataverseName, outputFile,
+        MetadataDeclTranslator metadataTranslator = new MetadataDeclTranslator(mdTxnCtx, defaultDataverse, outputFile,
                 writerFactory, config, typeDeclarations);
         return metadataTranslator.computeMetadataDeclarations(online);
     }
 
     public void validateOperation(AqlCompiledMetadataDeclarations compiledDeclarations, Statement stmt)
-            throws AlgebricksException {
-        if (compiledDeclarations.getDataverseName() != null
-                && compiledDeclarations.getDataverseName().equals(MetadataConstants.METADATA_DATAVERSE_NAME)) {
-            if (stmt.getKind() == Statement.Kind.INSERT || stmt.getKind() == Statement.Kind.UPDATE
-                    || stmt.getKind() == Statement.Kind.DELETE) {
-                throw new AlgebricksException(" Operation  " + stmt.getKind() + " not permitted in system dataverse-"
-                        + MetadataConstants.METADATA_DATAVERSE_NAME);
+            throws AsterixException {
+        if (compiledDeclarations.getDefaultDataverseName() != null
+                && compiledDeclarations.getDefaultDataverseName().equals(MetadataConstants.METADATA_DATAVERSE_NAME)) {
+        
+            boolean invalidOperation = false;
+            String message = null;
+            switch (stmt.getKind()) {
+                case INSERT:
+                case UPDATE:
+                case DELETE:
+                    invalidOperation = true;
+                    message = " Operation  " + stmt.getKind() + " not permitted in system dataverse-"
+                            + MetadataConstants.METADATA_DATAVERSE_NAME;
+                    break;
+                case FUNCTION_DROP:
+                    AsterixFunction af = ((FunctionDropStatement) stmt).getAsterixFunction();
+                    FunctionIdentifier fId = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, af.getName(),
+                            ((FunctionDropStatement) stmt).getAsterixFunction().getArity());
+                    if (compiledDeclarations.getDefaultDataverseName().equals(MetadataConstants.METADATA_DATAVERSE_NAME)
+                            && AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.FUNCTION, fId)) {
+                        invalidOperation = true;
+                        message = "Invalid Operation cannot drop function " + af + " (protected by system)";
+                    }
+                    break;
+                case NODEGROUP_DROP:
+                    NodeGroupDropStatement nodeGroupDropStmt = (NodeGroupDropStatement) stmt;
+                    String nodegroupName = nodeGroupDropStmt.getNodeGroupName().getValue();
+                    if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.NODEGROUP, nodegroupName)) {
+                        message = "Invalid Operation cannot drop nodegroup " + nodegroupName + " (protected by system)";
+                        invalidOperation = true;
+                    }
+                    break;
+                case DATAVERSE_DROP:
+                    DataverseDropStatement dvDropStmt = (DataverseDropStatement) stmt;
+                    String dvName = dvDropStmt.getDataverseName().getValue();
+                    if (dvName.equals(MetadataConstants.METADATA_DATAVERSE_NAME)) {
+                        message = "Invalid Operation cannot drop dataverse " + dvName + " (protected by system)";
+                        invalidOperation = true;
+                    }
+                    break;
+                case DATASET_DROP:
+                    DropStatement dropStmt = (DropStatement) stmt;
+                    String datasetName = dropStmt.getDatasetName().getValue();
+                    if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(ARTIFACT_KIND.DATASET, datasetName)) {
+                        invalidOperation = true;
+                        message = "Invalid Operation cannot drop dataset " + datasetName + " (protected by system)";
+                    }
+                    break;
+            }
+            if (invalidOperation) {
+                throw new AsterixException(message);
             }
         }
     }
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 e5712df..91a4bf8 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
@@ -78,6 +78,7 @@
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.base.IDataFormat;
 import edu.uci.ics.asterix.metadata.MetadataException;
+import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.bootstrap.AsterixProperties;
 import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
@@ -88,6 +89,7 @@
 import edu.uci.ics.asterix.metadata.declared.FileSplitDataSink;
 import edu.uci.ics.asterix.metadata.declared.FileSplitSinkId;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AString;
@@ -95,8 +97,11 @@
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.functions.AsterixFunction;
 import edu.uci.ics.asterix.om.functions.AsterixFunctionInfo;
+import edu.uci.ics.asterix.om.functions.FunctionSignature;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.translator.DmlTranslator.CompiledInsertStatement;
+import edu.uci.ics.asterix.translator.DmlTranslator.ICompiledDmlStatement;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
@@ -155,1521 +160,1325 @@
  * source for the current subtree.
  */
 
-public class AqlExpressionToPlanTranslator extends AbstractAqlTranslator
-		implements
-		IAqlExpressionVisitor<Pair<ILogicalOperator, LogicalVariable>, Mutable<ILogicalOperator>> {
+public class AqlExpressionToPlanTranslator extends AbstractAqlTranslator implements
+        IAqlExpressionVisitor<Pair<ILogicalOperator, LogicalVariable>, Mutable<ILogicalOperator>> {
 
-	private final MetadataTransactionContext mdTxnCtx;
-	private final long txnId;
-	private TranslationContext context;
-	private String outputDatasetName;
-	private Statement.Kind dmlKind;
-	private static AtomicLong outputFileID = new AtomicLong(0);
-	private static final String OUTPUT_FILE_PREFIX = "OUTPUT_";
+    private final MetadataTransactionContext mdTxnCtx;
+    private final long txnId;
+    private final TranslationContext context;
+    private final String outputDatasetName;
+    private final Statement.Kind dmlKind;
+    private final ICompiledDmlStatement stmt;
+    private final String dataverse;
+    private static AtomicLong outputFileID = new AtomicLong(0);
+    private static final String OUTPUT_FILE_PREFIX = "OUTPUT_";
 
-	private static LogicalVariable METADATA_DUMMY_VAR = new LogicalVariable(-1);
+    private static LogicalVariable METADATA_DUMMY_VAR = new LogicalVariable(-1);
 
-	public AqlExpressionToPlanTranslator(long txnId,
-			MetadataTransactionContext mdTxnCtx, int currentVarCounter,
-			String outputDatasetName, Statement.Kind dmlKind) {
-		this.mdTxnCtx = mdTxnCtx;
-		this.txnId = txnId;
-		this.context = new TranslationContext(new Counter(currentVarCounter));
-		this.outputDatasetName = outputDatasetName;
-		this.dmlKind = dmlKind;
-	}
+    public AqlExpressionToPlanTranslator(long txnId, MetadataTransactionContext mdTxnCtx, int currentVarCounter,
+            String outputDatasetName, Statement.Kind dmlKind, String dataverse, ICompiledDmlStatement stmt) {
+        this.mdTxnCtx = mdTxnCtx;
+        this.txnId = txnId;
+        this.context = new TranslationContext(new Counter(currentVarCounter));
+        this.outputDatasetName = outputDatasetName;
+        this.dmlKind = dmlKind;
+        this.dataverse = dataverse;
+        this.stmt = stmt;
+    }
 
-	public int getVarCounter() {
-		return context.getVarCounter();
-	}
+    public int getVarCounter() {
+        return context.getVarCounter();
+    }
 
-	public ILogicalPlanAndMetadata translate(Query expr,
-			AqlCompiledMetadataDeclarations compiledDeclarations)
-			throws AlgebricksException, AsterixException {
-		if (expr == null) {
-			return null;
-		}
-		if (compiledDeclarations == null) {
-			compiledDeclarations = compileMetadata(mdTxnCtx,
-					expr.getPrologDeclList(), true);
-		}
-		if (!compiledDeclarations.isConnectedToDataverse())
-			compiledDeclarations.connectToDataverse(compiledDeclarations
-					.getDataverseName());
-		IDataFormat format = compiledDeclarations.getFormat();
-		if (format == null) {
-			throw new AlgebricksException("Data format has not been set.");
-		}
-		format.registerRuntimeFunctions();
-		Pair<ILogicalOperator, LogicalVariable> p = expr.accept(this,
-				new MutableObject<ILogicalOperator>(
-						new EmptyTupleSourceOperator()));
+    public ILogicalPlanAndMetadata translate(Query expr, AqlCompiledMetadataDeclarations compiledDeclarations)
+            throws AlgebricksException, AsterixException {
+        if (expr == null) {
+            return null;
+        }
+        if (compiledDeclarations == null) {
+            compiledDeclarations = compileMetadata(mdTxnCtx, expr.getPrologDeclList(), true);
+        }
 
-		ArrayList<Mutable<ILogicalOperator>> globalPlanRoots = new ArrayList<Mutable<ILogicalOperator>>();
+        IDataFormat format;
+        if (!compiledDeclarations.isConnectedToDataverse()) {
+            if (compiledDeclarations.getDefaultDataverseName() != null) {
+                compiledDeclarations.connectToDataverse(compiledDeclarations.getDefaultDataverseName());
+            }
+            format = compiledDeclarations.getFormat();
+            if (format == null) {
+                throw new AlgebricksException("Data format has not been set.");
+            }
+            format.registerRuntimeFunctions();
+        }
 
-		boolean isTransactionalWrite = false;
-		ILogicalOperator topOp = p.first;
-		ProjectOperator project = (ProjectOperator) topOp;
-		LogicalVariable resVar = project.getVariables().get(0);
-		if (outputDatasetName == null) {
-			FileSplit outputFileSplit = compiledDeclarations.getOutputFile();
-			if (outputFileSplit == null) {
-				outputFileSplit = getDefaultOutputFileLocation();
-			}
-			compiledDeclarations.setOutputFile(outputFileSplit);
-			List<Mutable<ILogicalExpression>> writeExprList = new ArrayList<Mutable<ILogicalExpression>>(
-					1);
-			writeExprList.add(new MutableObject<ILogicalExpression>(
-					new VariableReferenceExpression(resVar)));
-			FileSplitSinkId fssi = new FileSplitSinkId(outputFileSplit);
-			FileSplitDataSink sink = new FileSplitDataSink(fssi, null);
-			topOp = new WriteOperator(writeExprList, sink);
-			topOp.getInputs().add(new MutableObject<ILogicalOperator>(project));
-		} else {
-			String dataVerseName = compiledDeclarations.getDataverseName();
-			Dataset dataset = compiledDeclarations
-					.findDataset(outputDatasetName);
-			if (dataset == null) {
-				throw new AlgebricksException("Cannot find dataset "
-						+ outputDatasetName);
-			}
+        Pair<ILogicalOperator, LogicalVariable> p = expr.accept(this, new MutableObject<ILogicalOperator>(
+                new EmptyTupleSourceOperator()));
 
-			AqlSourceId sourceId = new AqlSourceId(dataVerseName,
-					outputDatasetName);
-			String itemTypeName = dataset.getItemTypeName();
-			IAType itemType = compiledDeclarations.findType(itemTypeName);
-			AqlDataSource dataSource = new AqlDataSource(sourceId, dataset,
-					itemType);
-			if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
-				throw new AlgebricksException(
-						"Cannot write output to an external dataset.");
-			}
-			ArrayList<LogicalVariable> vars = new ArrayList<LogicalVariable>();
-			ArrayList<Mutable<ILogicalExpression>> exprs = new ArrayList<Mutable<ILogicalExpression>>();
-			List<Mutable<ILogicalExpression>> varRefsForLoading = new ArrayList<Mutable<ILogicalExpression>>();
+        ArrayList<Mutable<ILogicalOperator>> globalPlanRoots = new ArrayList<Mutable<ILogicalOperator>>();
 
-			List<String> partitionKeys = DatasetUtils
-					.getPartitioningKeys(dataset);
-			for (String keyFieldName : partitionKeys) {
-				IFunctionInfo finfoAccess = AsterixBuiltinFunctions
-						.getAsterixFunctionInfo(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME);
-				@SuppressWarnings("unchecked")
-				ScalarFunctionCallExpression f = new ScalarFunctionCallExpression(
-						finfoAccess, new MutableObject<ILogicalExpression>(
-								new VariableReferenceExpression(
-										METADATA_DUMMY_VAR)),
-						new MutableObject<ILogicalExpression>(
-								new ConstantExpression(
-										new AsterixConstantValue(new AString(
-												keyFieldName)))));
-				f.substituteVar(METADATA_DUMMY_VAR, resVar);
-				exprs.add(new MutableObject<ILogicalExpression>(f));
-				LogicalVariable v = context.newVar();
-				vars.add(v);
-				varRefsForLoading.add(new MutableObject<ILogicalExpression>(
-						new VariableReferenceExpression(v)));
-			}
-			AssignOperator assign = new AssignOperator(vars, exprs);
-			assign.getInputs()
-					.add(new MutableObject<ILogicalOperator>(project));
+        boolean isTransactionalWrite = false;
+        ILogicalOperator topOp = p.first;
+        ProjectOperator project = (ProjectOperator) topOp;
+        LogicalVariable resVar = project.getVariables().get(0);
+        if (outputDatasetName == null) {
+            FileSplit outputFileSplit = compiledDeclarations.getOutputFile();
+            if (outputFileSplit == null) {
+                outputFileSplit = getDefaultOutputFileLocation();
+            }
+            compiledDeclarations.setOutputFile(outputFileSplit);
+            List<Mutable<ILogicalExpression>> writeExprList = new ArrayList<Mutable<ILogicalExpression>>(1);
+            writeExprList.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(resVar)));
+            FileSplitSinkId fssi = new FileSplitSinkId(outputFileSplit);
+            FileSplitDataSink sink = new FileSplitDataSink(fssi, null);
+            topOp = new WriteOperator(writeExprList, sink);
+            topOp.getInputs().add(new MutableObject<ILogicalOperator>(project));
+        } else {
 
-			Mutable<ILogicalExpression> varRef = new MutableObject<ILogicalExpression>(
-					new VariableReferenceExpression(resVar));
-			ILogicalOperator load = null;
+            AqlDataSource targetDatasource = validateDatasetInfo(compiledDeclarations, stmt.getDataverseName(),
+                    stmt.getDatasetName());
 
-			switch (dmlKind) {
-			case WRITE_FROM_QUERY_RESULT: {
-				load = new WriteResultOperator(dataSource, varRef,
-						varRefsForLoading);
-				load.getInputs().add(
-						new MutableObject<ILogicalOperator>(assign));
-				break;
-			}
-			case INSERT: {
-				ILogicalOperator insertOp = new InsertDeleteOperator(
-						dataSource, varRef, varRefsForLoading,
-						InsertDeleteOperator.Kind.INSERT);
-				insertOp.getInputs().add(
-						new MutableObject<ILogicalOperator>(assign));
-				load = new SinkOperator();
-				load.getInputs().add(
-						new MutableObject<ILogicalOperator>(insertOp));
-				isTransactionalWrite = true;
-				break;
-			}
-			case DELETE: {
-				ILogicalOperator deleteOp = new InsertDeleteOperator(
-						dataSource, varRef, varRefsForLoading,
-						InsertDeleteOperator.Kind.DELETE);
-				deleteOp.getInputs().add(
-						new MutableObject<ILogicalOperator>(assign));
-				load = new SinkOperator();
-				load.getInputs().add(
-						new MutableObject<ILogicalOperator>(deleteOp));
-				isTransactionalWrite = true;
-				break;
-			}
-			case BEGIN_FEED: {
-				ILogicalOperator insertOp = new InsertDeleteOperator(
-						dataSource, varRef, varRefsForLoading,
-						InsertDeleteOperator.Kind.INSERT);
-				insertOp.getInputs().add(
-						new MutableObject<ILogicalOperator>(assign));
-				load = new SinkOperator();
-				load.getInputs().add(
-						new MutableObject<ILogicalOperator>(insertOp));
-				isTransactionalWrite = false;
-				break;
-			}
-			}
-			topOp = load;
-		}
+            ArrayList<LogicalVariable> vars = new ArrayList<LogicalVariable>();
+            ArrayList<Mutable<ILogicalExpression>> exprs = new ArrayList<Mutable<ILogicalExpression>>();
+            List<Mutable<ILogicalExpression>> varRefsForLoading = new ArrayList<Mutable<ILogicalExpression>>();
 
-		globalPlanRoots.add(new MutableObject<ILogicalOperator>(topOp));
-		ILogicalPlan plan = new ALogicalPlanImpl(globalPlanRoots);
-		AqlMetadataProvider metadataProvider = new AqlMetadataProvider(txnId,
-				isTransactionalWrite, compiledDeclarations);
-		ILogicalPlanAndMetadata planAndMetadata = new AqlLogicalPlanAndMetadataImpl(
-				plan, metadataProvider);
-		return planAndMetadata;
-	}
+            List<String> partitionKeys = DatasetUtils.getPartitioningKeys(targetDatasource.getDataset());
+            for (String keyFieldName : partitionKeys) {
+                IFunctionInfo finfoAccess = AsterixBuiltinFunctions
+                        .getAsterixFunctionInfo(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME);
+                @SuppressWarnings("unchecked")
+                ScalarFunctionCallExpression f = new ScalarFunctionCallExpression(finfoAccess,
+                        new MutableObject<ILogicalExpression>(new VariableReferenceExpression(METADATA_DUMMY_VAR)),
+                        new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
+                                new AString(keyFieldName)))));
+                f.substituteVar(METADATA_DUMMY_VAR, resVar);
+                exprs.add(new MutableObject<ILogicalExpression>(f));
+                LogicalVariable v = context.newVar();
+                vars.add(v);
+                varRefsForLoading.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(v)));
+            }
+            AssignOperator assign = new AssignOperator(vars, exprs);
+            assign.getInputs().add(new MutableObject<ILogicalOperator>(project));
 
-	private FileSplit getDefaultOutputFileLocation() throws MetadataException {
-		if (AsterixProperties.INSTANCE.getOutputDir() == null) {
-			throw new MetadataException(
-					"Output location for query result not specified at the time of deployment, must specify explicitly using 'write output to ..' statement");
-		}
-		String filePath = AsterixProperties.INSTANCE.getOutputDir()
-				+ System.getProperty("file.separator") + OUTPUT_FILE_PREFIX
-				+ outputFileID.incrementAndGet();
-		return new FileSplit(AsterixProperties.INSTANCE.getMetadataNodeName(),
-				new FileReference(new File(filePath)));
-	}
+            Mutable<ILogicalExpression> varRef = new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
+                    resVar));
+            ILogicalOperator leafOperator = null;
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitForClause(ForClause fc,
-			Mutable<ILogicalOperator> tupSource) throws AsterixException {
-		LogicalVariable v = context.newVar(fc.getVarExpr());
+            switch (dmlKind) {
+                case WRITE_FROM_QUERY_RESULT: {
 
-		Expression inExpr = fc.getInExpr();
-		Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(
-				inExpr, tupSource);
-		ILogicalOperator returnedOp;
+                    leafOperator = new WriteResultOperator(targetDatasource, varRef, varRefsForLoading);
+                    leafOperator.getInputs().add(new MutableObject<ILogicalOperator>(assign));
+                    break;
+                }
+                case INSERT: {
+                    ILogicalOperator insertOp = new InsertDeleteOperator(targetDatasource, varRef, varRefsForLoading,
+                            InsertDeleteOperator.Kind.INSERT);
+                    insertOp.getInputs().add(new MutableObject<ILogicalOperator>(assign));
+                    leafOperator = new SinkOperator();
+                    leafOperator.getInputs().add(new MutableObject<ILogicalOperator>(insertOp));
+                    isTransactionalWrite = true;
+                    break;
+                }
+                case DELETE: {
+                    ILogicalOperator deleteOp = new InsertDeleteOperator(targetDatasource, varRef, varRefsForLoading,
+                            InsertDeleteOperator.Kind.DELETE);
+                    deleteOp.getInputs().add(new MutableObject<ILogicalOperator>(assign));
+                    leafOperator = new SinkOperator();
+                    leafOperator.getInputs().add(new MutableObject<ILogicalOperator>(deleteOp));
+                    isTransactionalWrite = true;
+                    break;
+                }
+                case BEGIN_FEED: {
+                    ILogicalOperator insertOp = new InsertDeleteOperator(targetDatasource, varRef, varRefsForLoading,
+                            InsertDeleteOperator.Kind.INSERT);
+                    insertOp.getInputs().add(new MutableObject<ILogicalOperator>(assign));
+                    leafOperator = new SinkOperator();
+                    leafOperator.getInputs().add(new MutableObject<ILogicalOperator>(insertOp));
+                    isTransactionalWrite = false;
+                    break;
+                }
+            }
+            topOp = leafOperator;
+        }
 
-		if (fc.getPosVarExpr() == null) {
-			returnedOp = new UnnestOperator(v,
-					new MutableObject<ILogicalExpression>(
-							makeUnnestExpression(eo.first)));
-		} else {
-			LogicalVariable pVar = context.newVar(fc.getPosVarExpr());
-			returnedOp = new UnnestOperator(v,
-					new MutableObject<ILogicalExpression>(
-							makeUnnestExpression(eo.first)), pVar,
-					BuiltinType.AINT32);
-		}
-		returnedOp.getInputs().add(eo.second);
+        globalPlanRoots.add(new MutableObject<ILogicalOperator>(topOp));
+        ILogicalPlan plan = new ALogicalPlanImpl(globalPlanRoots);
+        AqlMetadataProvider metadataProvider = new AqlMetadataProvider(txnId, isTransactionalWrite,
+                compiledDeclarations);
+        ILogicalPlanAndMetadata planAndMetadata = new AqlLogicalPlanAndMetadataImpl(plan, metadataProvider);
+        return planAndMetadata;
+    }
 
-		return new Pair<ILogicalOperator, LogicalVariable>(returnedOp, v);
-	}
+    private AqlDataSource validateDatasetInfo(AqlCompiledMetadataDeclarations compiledDeclarations,
+            String dataverseName, String datasetName) throws AlgebricksException {
+        Dataset dataset = compiledDeclarations.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AlgebricksException("Cannot find dataset " + datasetName + " in dataverse " + dataverseName);
+        }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitLetClause(LetClause lc,
-			Mutable<ILogicalOperator> tupSource) throws AsterixException {
-		LogicalVariable v;
-		ILogicalOperator returnedOp;
+        AqlSourceId sourceId = new AqlSourceId(dataverseName, datasetName);
+        String itemTypeName = dataset.getItemTypeName();
+        IAType itemType = compiledDeclarations.findType(itemTypeName);
+        AqlDataSource dataSource = new AqlDataSource(sourceId, dataset, itemType);
+        if (dataset.getDatasetType() == DatasetType.EXTERNAL) {
+            throw new AlgebricksException("Cannot write output to an external dataset.");
+        }
+        return dataSource;
 
-		switch (lc.getBindingExpr().getKind()) {
-		case VARIABLE_EXPRESSION: {
-			v = context.newVar(lc.getVarExpr());
-			LogicalVariable prev = context.getVar(((VariableExpr) lc
-					.getBindingExpr()).getVar().getId());
-			returnedOp = new AssignOperator(v,
-					new MutableObject<ILogicalExpression>(
-							new VariableReferenceExpression(prev)));
-			returnedOp.getInputs().add(tupSource);
-			break;
-		}
-		default: {
-			v = context.newVar(lc.getVarExpr());
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(
-					lc.getBindingExpr(), tupSource);
-			returnedOp = new AssignOperator(v,
-					new MutableObject<ILogicalExpression>(eo.first));
-			returnedOp.getInputs().add(eo.second);
-			break;
-		}
-		}
-		return new Pair<ILogicalOperator, LogicalVariable>(returnedOp, v);
-	}
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitFlworExpression(
-			FLWOGRExpression flwor, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		Mutable<ILogicalOperator> flworPlan = tupSource;
-		boolean isTop = context.isTopFlwor();
-		if (isTop) {
-			context.setTopFlwor(false);
-		}
-		for (Clause c : flwor.getClauseList()) {
-			Pair<ILogicalOperator, LogicalVariable> pC = c.accept(this,
-					flworPlan);
-			flworPlan = new MutableObject<ILogicalOperator>(pC.first);
-		}
+    private FileSplit getDefaultOutputFileLocation() throws MetadataException {
+        if (AsterixProperties.INSTANCE.getOutputDir() == null) {
+            throw new MetadataException(
+                    "Output location for query result not specified at the time of deployment, must specify explicitly using 'write output to ..' statement");
+        }
+        String filePath = AsterixProperties.INSTANCE.getOutputDir() + System.getProperty("file.separator")
+                + OUTPUT_FILE_PREFIX + outputFileID.incrementAndGet();
+        return new FileSplit(AsterixProperties.INSTANCE.getMetadataNodeName(), new FileReference(new File(filePath)));
+    }
 
-		Expression r = flwor.getReturnExpr();
-		boolean noFlworClause = flwor.noForClause();
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitForClause(ForClause fc, Mutable<ILogicalOperator> tupSource)
+            throws AsterixException {
+        LogicalVariable v = context.newVar(fc.getVarExpr());
 
-		if (r.getKind() == Kind.VARIABLE_EXPRESSION) {
-			VariableExpr v = (VariableExpr) r;
-			LogicalVariable var = context.getVar(v.getVar().getId());
+        Expression inExpr = fc.getInExpr();
+        Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(inExpr, tupSource);
+        ILogicalOperator returnedOp;
 
-			return produceFlwrResult(noFlworClause, isTop, flworPlan, var);
+        if (fc.getPosVarExpr() == null) {
+            returnedOp = new UnnestOperator(v, new MutableObject<ILogicalExpression>(makeUnnestExpression(eo.first)));
+        } else {
+            LogicalVariable pVar = context.newVar(fc.getPosVarExpr());
+            returnedOp = new UnnestOperator(v, new MutableObject<ILogicalExpression>(makeUnnestExpression(eo.first)),
+                    pVar, BuiltinType.AINT32);
+        }
+        returnedOp.getInputs().add(eo.second);
 
-		} else {
-			Mutable<ILogicalOperator> baseOp = new MutableObject<ILogicalOperator>(
-					flworPlan.getValue());
-			Pair<ILogicalOperator, LogicalVariable> rRes = r.accept(this,
-					baseOp);
-			ILogicalOperator rOp = rRes.first;
-			ILogicalOperator resOp;
-			if (expressionNeedsNoNesting(r)) {
-				baseOp.setValue(flworPlan.getValue());
-				resOp = rOp;
-			} else {
-				SubplanOperator s = new SubplanOperator(rOp);
-				s.getInputs().add(flworPlan);
-				resOp = s;
-				baseOp.setValue(new NestedTupleSourceOperator(
-						new MutableObject<ILogicalOperator>(s)));
-			}
-			Mutable<ILogicalOperator> resOpRef = new MutableObject<ILogicalOperator>(
-					resOp);
-			return produceFlwrResult(noFlworClause, isTop, resOpRef,
-					rRes.second);
-		}
-	}
+        return new Pair<ILogicalOperator, LogicalVariable>(returnedOp, v);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitFieldAccessor(
-			FieldAccessor fa, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(
-				fa.getExpr(), tupSource);
-		LogicalVariable v = context.newVar();
-		AbstractFunctionCallExpression fldAccess = new ScalarFunctionCallExpression(
-				FunctionUtils
-						.getFunctionInfo(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME));
-		fldAccess.getArguments().add(
-				new MutableObject<ILogicalExpression>(p.first));
-		ILogicalExpression faExpr = new ConstantExpression(
-				new AsterixConstantValue(new AString(fa.getIdent().getValue())));
-		fldAccess.getArguments().add(
-				new MutableObject<ILogicalExpression>(faExpr));
-		AssignOperator a = new AssignOperator(v,
-				new MutableObject<ILogicalExpression>(fldAccess));
-		a.getInputs().add(p.second);
-		return new Pair<ILogicalOperator, LogicalVariable>(a, v);
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitLetClause(LetClause lc, Mutable<ILogicalOperator> tupSource)
+            throws AsterixException {
+        LogicalVariable v;
+        ILogicalOperator returnedOp;
 
-	}
+        switch (lc.getBindingExpr().getKind()) {
+            case VARIABLE_EXPRESSION: {
+                v = context.newVar(lc.getVarExpr());
+                LogicalVariable prev = context.getVar(((VariableExpr) lc.getBindingExpr()).getVar().getId());
+                returnedOp = new AssignOperator(v, new MutableObject<ILogicalExpression>(
+                        new VariableReferenceExpression(prev)));
+                returnedOp.getInputs().add(tupSource);
+                break;
+            }
+            default: {
+                v = context.newVar(lc.getVarExpr());
+                Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(lc.getBindingExpr(),
+                        tupSource);
+                returnedOp = new AssignOperator(v, new MutableObject<ILogicalExpression>(eo.first));
+                returnedOp.getInputs().add(eo.second);
+                break;
+            }
+        }
+        return new Pair<ILogicalOperator, LogicalVariable>(returnedOp, v);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitIndexAccessor(
-			IndexAccessor ia, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(
-				ia.getExpr(), tupSource);
-		LogicalVariable v = context.newVar();
-		AbstractFunctionCallExpression f;
-		int i = ia.getIndex();
-		if (i == IndexAccessor.ANY) {
-			f = new ScalarFunctionCallExpression(
-					FunctionUtils
-							.getFunctionInfo(AsterixBuiltinFunctions.ANY_COLLECTION_MEMBER));
-			f.getArguments()
-					.add(new MutableObject<ILogicalExpression>(p.first));
-		} else {
-			f = new ScalarFunctionCallExpression(
-					FunctionUtils
-							.getFunctionInfo(AsterixBuiltinFunctions.GET_ITEM));
-			f.getArguments()
-					.add(new MutableObject<ILogicalExpression>(p.first));
-			f.getArguments().add(
-					new MutableObject<ILogicalExpression>(
-							new ConstantExpression(new AsterixConstantValue(
-									new AInt32(i)))));
-		}
-		AssignOperator a = new AssignOperator(v,
-				new MutableObject<ILogicalExpression>(f));
-		a.getInputs().add(p.second);
-		return new Pair<ILogicalOperator, LogicalVariable>(a, v);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitFlworExpression(FLWOGRExpression flwor,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        Mutable<ILogicalOperator> flworPlan = tupSource;
+        boolean isTop = context.isTopFlwor();
+        if (isTop) {
+            context.setTopFlwor(false);
+        }
+        for (Clause c : flwor.getClauseList()) {
+            Pair<ILogicalOperator, LogicalVariable> pC = c.accept(this, flworPlan);
+            flworPlan = new MutableObject<ILogicalOperator>(pC.first);
+        }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitCallExpr(
-			CallExpr fcall, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		LogicalVariable v = context.newVar();
-		AsterixFunction fid = fcall.getIdent();
-		List<Mutable<ILogicalExpression>> args = new ArrayList<Mutable<ILogicalExpression>>();
-		Mutable<ILogicalOperator> topOp = tupSource;
+        Expression r = flwor.getReturnExpr();
+        boolean noFlworClause = flwor.noForClause();
 
-		for (Expression expr : fcall.getExprList()) {
-			switch (expr.getKind()) {
-			case VARIABLE_EXPRESSION: {
-				LogicalVariable var = context.getVar(((VariableExpr) expr)
-						.getVar().getId());
-				args.add(new MutableObject<ILogicalExpression>(
-						new VariableReferenceExpression(var)));
-				break;
-			}
-			case LITERAL_EXPRESSION: {
-				LiteralExpr val = (LiteralExpr) expr;
-				args.add(new MutableObject<ILogicalExpression>(
-						new ConstantExpression(
-								new AsterixConstantValue(ConstantHelper
-										.objectFromLiteral(val.getValue())))));
-				break;
-			}
-			default: {
-				Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(
-						expr, topOp);
-				AbstractLogicalOperator o1 = (AbstractLogicalOperator) eo.second
-						.getValue();
-				args.add(new MutableObject<ILogicalExpression>(eo.first));
-				if (o1 != null
-						&& !(o1.getOperatorTag() == LogicalOperatorTag.ASSIGN && hasOnlyChild(
-								o1, topOp))) {
-					topOp = eo.second;
-				}
-				break;
-			}
-			}
-		}
+        if (r.getKind() == Kind.VARIABLE_EXPRESSION) {
+            VariableExpr v = (VariableExpr) r;
+            LogicalVariable var = context.getVar(v.getVar().getId());
 
-		FunctionIdentifier fi = new FunctionIdentifier(
-				AlgebricksBuiltinFunctions.ALGEBRICKS_NS, fid.getFunctionName());
-		AsterixFunctionInfo afi = AsterixBuiltinFunctions.lookupFunction(fi);
-		FunctionIdentifier builtinAquafi = afi == null ? null : afi
-				.getFunctionIdentifier();
+            return produceFlwrResult(noFlworClause, isTop, flworPlan, var);
 
-		if (builtinAquafi != null) {
-			fi = builtinAquafi;
-		} else {
-			fi = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-					fid.getFunctionName());
-			FunctionIdentifier builtinAsterixFi = AsterixBuiltinFunctions
-					.getBuiltinFunctionIdentifier(fi);
-			if (builtinAsterixFi != null) {
-				fi = builtinAsterixFi;
-			}
-		}
-		AbstractFunctionCallExpression f;
-		if (AsterixBuiltinFunctions.isBuiltinAggregateFunction(fi)) {
-			f = AsterixBuiltinFunctions.makeAggregateFunctionExpression(fi,
-					args);
-		} else if (AsterixBuiltinFunctions.isBuiltinUnnestingFunction(fi)) {
-			UnnestingFunctionCallExpression ufce = new UnnestingFunctionCallExpression(
-					FunctionUtils.getFunctionInfo(fi), args);
-			ufce.setReturnsUniqueValues(AsterixBuiltinFunctions
-					.returnsUniqueValues(fi));
-			f = ufce;
-		} else {
-			f = new ScalarFunctionCallExpression(
-					FunctionUtils.getFunctionInfo(fi), args);
-		}
-		// Put hints into function call expr.
-		if (fcall.hasHints()) {
-			for (IExpressionAnnotation hint : fcall.getHints()) {
-				f.getAnnotations().put(hint, hint);
-			}
-		}
-		AssignOperator op = new AssignOperator(v,
-				new MutableObject<ILogicalExpression>(f));
-		if (topOp != null) {
-			op.getInputs().add(topOp);
-		}
+        } else {
+            Mutable<ILogicalOperator> baseOp = new MutableObject<ILogicalOperator>(flworPlan.getValue());
+            Pair<ILogicalOperator, LogicalVariable> rRes = r.accept(this, baseOp);
+            ILogicalOperator rOp = rRes.first;
+            ILogicalOperator resOp;
+            if (expressionNeedsNoNesting(r)) {
+                baseOp.setValue(flworPlan.getValue());
+                resOp = rOp;
+            } else {
+                SubplanOperator s = new SubplanOperator(rOp);
+                s.getInputs().add(flworPlan);
+                resOp = s;
+                baseOp.setValue(new NestedTupleSourceOperator(new MutableObject<ILogicalOperator>(s)));
+            }
+            Mutable<ILogicalOperator> resOpRef = new MutableObject<ILogicalOperator>(resOp);
+            return produceFlwrResult(noFlworClause, isTop, resOpRef, rRes.second);
+        }
+    }
 
-		return new Pair<ILogicalOperator, LogicalVariable>(op, v);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitFieldAccessor(FieldAccessor fa,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(fa.getExpr(), tupSource);
+        LogicalVariable v = context.newVar();
+        AbstractFunctionCallExpression fldAccess = new ScalarFunctionCallExpression(
+                FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME));
+        fldAccess.getArguments().add(new MutableObject<ILogicalExpression>(p.first));
+        ILogicalExpression faExpr = new ConstantExpression(new AsterixConstantValue(new AString(fa.getIdent()
+                .getValue())));
+        fldAccess.getArguments().add(new MutableObject<ILogicalExpression>(faExpr));
+        AssignOperator a = new AssignOperator(v, new MutableObject<ILogicalExpression>(fldAccess));
+        a.getInputs().add(p.second);
+        return new Pair<ILogicalOperator, LogicalVariable>(a, v);
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitFunctionDecl(
-			FunctionDecl fd, Mutable<ILogicalOperator> tupSource) {
-		// TODO Auto-generated method stub
-		throw new NotImplementedException();
-	}
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitGroupbyClause(
-			GroupbyClause gc, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		GroupByOperator gOp = new GroupByOperator();
-		Mutable<ILogicalOperator> topOp = tupSource;
-		for (GbyVariableExpressionPair ve : gc.getGbyPairList()) {
-			LogicalVariable v;
-			VariableExpr vexpr = ve.getVar();
-			if (vexpr != null) {
-				v = context.newVar(vexpr);
-			} else {
-				v = context.newVar();
-			}
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(
-					ve.getExpr(), topOp);
-			gOp.addGbyExpression(v, eo.first);
-			topOp = eo.second;
-		}
-		for (GbyVariableExpressionPair ve : gc.getDecorPairList()) {
-			LogicalVariable v;
-			VariableExpr vexpr = ve.getVar();
-			if (vexpr != null) {
-				v = context.newVar(vexpr);
-			} else {
-				v = context.newVar();
-			}
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(
-					ve.getExpr(), topOp);
-			gOp.addDecorExpression(v, eo.first);
-			topOp = eo.second;
-		}
-		gOp.getInputs().add(topOp);
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitIndexAccessor(IndexAccessor ia,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(ia.getExpr(), tupSource);
+        LogicalVariable v = context.newVar();
+        AbstractFunctionCallExpression f;
+        int i = ia.getIndex();
+        if (i == IndexAccessor.ANY) {
+            f = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.ANY_COLLECTION_MEMBER));
+            f.getArguments().add(new MutableObject<ILogicalExpression>(p.first));
+        } else {
+            f = new ScalarFunctionCallExpression(FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.GET_ITEM));
+            f.getArguments().add(new MutableObject<ILogicalExpression>(p.first));
+            f.getArguments().add(
+                    new MutableObject<ILogicalExpression>(new ConstantExpression(
+                            new AsterixConstantValue(new AInt32(i)))));
+        }
+        AssignOperator a = new AssignOperator(v, new MutableObject<ILogicalExpression>(f));
+        a.getInputs().add(p.second);
+        return new Pair<ILogicalOperator, LogicalVariable>(a, v);
+    }
 
-		for (VariableExpr var : gc.getWithVarList()) {
-			LogicalVariable aggVar = context.newVar();
-			LogicalVariable oldVar = context.getVar(var);
-			List<Mutable<ILogicalExpression>> flArgs = new ArrayList<Mutable<ILogicalExpression>>(
-					1);
-			flArgs.add(new MutableObject<ILogicalExpression>(
-					new VariableReferenceExpression(oldVar)));
-			AggregateFunctionCallExpression fListify = AsterixBuiltinFunctions
-					.makeAggregateFunctionExpression(
-							AsterixBuiltinFunctions.LISTIFY, flArgs);
-			AggregateOperator agg = new AggregateOperator(
-					mkSingletonArrayList(aggVar),
-					(List) mkSingletonArrayList(new MutableObject<ILogicalExpression>(
-							fListify)));
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitCallExpr(CallExpr fcall, Mutable<ILogicalOperator> tupSource)
+            throws AsterixException {
+        LogicalVariable v = context.newVar();
+        AsterixFunction fid = fcall.getIdent();
+        List<Mutable<ILogicalExpression>> args = new ArrayList<Mutable<ILogicalExpression>>();
+        Mutable<ILogicalOperator> topOp = tupSource;
 
-			agg.getInputs().add(
-					new MutableObject<ILogicalOperator>(
-							new NestedTupleSourceOperator(
-									new MutableObject<ILogicalOperator>(gOp))));
-			ILogicalPlan plan = new ALogicalPlanImpl(
-					new MutableObject<ILogicalOperator>(agg));
-			gOp.getNestedPlans().add(plan);
-			// Hide the variable that was part of the "with", replacing it with
-			// the one bound by the aggregation op.
-			context.setVar(var, aggVar);
-		}
+        for (Expression expr : fcall.getExprList()) {
+            switch (expr.getKind()) {
+                case VARIABLE_EXPRESSION: {
+                    LogicalVariable var = context.getVar(((VariableExpr) expr).getVar().getId());
+                    args.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(var)));
+                    break;
+                }
+                case LITERAL_EXPRESSION: {
+                    LiteralExpr val = (LiteralExpr) expr;
+                    args.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
+                            ConstantHelper.objectFromLiteral(val.getValue())))));
+                    break;
+                }
+                default: {
+                    Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(expr, topOp);
+                    AbstractLogicalOperator o1 = (AbstractLogicalOperator) eo.second.getValue();
+                    args.add(new MutableObject<ILogicalExpression>(eo.first));
+                    if (o1 != null && !(o1.getOperatorTag() == LogicalOperatorTag.ASSIGN && hasOnlyChild(o1, topOp))) {
+                        topOp = eo.second;
+                    }
+                    break;
+                }
+            }
+        }
 
-		gOp.getAnnotations().put(OperatorAnnotations.USE_HASH_GROUP_BY,
-				gc.hasHashGroupByHint());
-		return new Pair<ILogicalOperator, LogicalVariable>(gOp, null);
-	}
+        AbstractFunctionCallExpression f;
+        FunctionIdentifier fi = new FunctionIdentifier(dataverse, fid.getName(), fid.getArity());
+        if ((f = lookupUserDefinedFunction(fi, args)) == null) {
+            f = lookupBuiltinFunction(fid.getName(), fid.getArity(), args);
+        }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitIfExpr(IfExpr ifexpr,
-			Mutable<ILogicalOperator> tupSource) throws AsterixException {
-		// In the most general case, IfThenElse is translated in the following
-		// way.
-		//
-		// We assign the result of the condition to one variable varCond.
-		// We create one subplan which contains the plan for the "then" branch,
-		// on top of which there is a selection whose condition is varCond.
-		// Similarly, we create one subplan for the "else" branch, in which the
-		// selection is not(varCond).
-		// Finally, we concatenate the results. (??)
+        if (f == null) {
+            throw new AsterixException(" Unknown function " + fid);
+        }
 
-		Pair<ILogicalOperator, LogicalVariable> pCond = ifexpr.getCondExpr()
-				.accept(this, tupSource);
-		ILogicalOperator opCond = pCond.first;
-		LogicalVariable varCond = pCond.second;
+        // Put hints into function call expr.
+        if (fcall.hasHints()) {
+            for (IExpressionAnnotation hint : fcall.getHints()) {
+                f.getAnnotations().put(hint, hint);
+            }
+        }
 
-		SubplanOperator sp = new SubplanOperator();
-		Mutable<ILogicalOperator> nestedSource = new MutableObject<ILogicalOperator>(
-				new NestedTupleSourceOperator(
-						new MutableObject<ILogicalOperator>(sp)));
+        AssignOperator op = new AssignOperator(v, new MutableObject<ILogicalExpression>(f));
+        if (topOp != null) {
+            op.getInputs().add(topOp);
+        }
 
-		Pair<ILogicalOperator, LogicalVariable> pThen = ifexpr.getThenExpr()
-				.accept(this, nestedSource);
-		SelectOperator sel1 = new SelectOperator(
-				new MutableObject<ILogicalExpression>(
-						new VariableReferenceExpression(varCond)));
-		sel1.getInputs().add(new MutableObject<ILogicalOperator>(pThen.first));
+        return new Pair<ILogicalOperator, LogicalVariable>(op, v);
+    }
 
-		Pair<ILogicalOperator, LogicalVariable> pElse = ifexpr.getElseExpr()
-				.accept(this, nestedSource);
-		AbstractFunctionCallExpression notVarCond = new ScalarFunctionCallExpression(
-				FunctionUtils.getFunctionInfo(AlgebricksBuiltinFunctions.NOT),
-				new MutableObject<ILogicalExpression>(
-						new VariableReferenceExpression(varCond)));
-		SelectOperator sel2 = new SelectOperator(
-				new MutableObject<ILogicalExpression>(notVarCond));
-		sel2.getInputs().add(new MutableObject<ILogicalOperator>(pElse.first));
+    private AbstractFunctionCallExpression lookupUserDefinedFunction(FunctionIdentifier fid,
+            List<Mutable<ILogicalExpression>> args) throws MetadataException {
+        if (dataverse == null) {
+            return null;
+        }
+        Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx,
+                new FunctionSignature(dataverse, fid.getName(), fid.getArity()));
+        if (function == null) {
+            return null;
+        }
+        AbstractFunctionCallExpression f = null;
+        if (function.getLanguage().equalsIgnoreCase(Function.LANGUAGE_AQL)) {
+            IFunctionInfo finfo = new AsterixFunctionInfo(fid);
+            return new ScalarFunctionCallExpression(finfo, args);
+        } else {
+            throw new MetadataException(" User defined functions written in " + function.getLanguage()
+                    + " are not supported");
+        }
+    }
 
-		ILogicalPlan p1 = new ALogicalPlanImpl(
-				new MutableObject<ILogicalOperator>(sel1));
-		sp.getNestedPlans().add(p1);
-		ILogicalPlan p2 = new ALogicalPlanImpl(
-				new MutableObject<ILogicalOperator>(sel2));
-		sp.getNestedPlans().add(p2);
+    private AbstractFunctionCallExpression lookupBuiltinFunction(String functionName, int arity,
+            List<Mutable<ILogicalExpression>> args) {
+        AbstractFunctionCallExpression f = null;
 
-		Mutable<ILogicalOperator> opCondRef = new MutableObject<ILogicalOperator>(
-				opCond);
-		sp.getInputs().add(opCondRef);
+        FunctionIdentifier fi = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, functionName, arity);
+        AsterixFunctionInfo afi = AsterixBuiltinFunctions.lookupFunction(fi);
+        FunctionIdentifier builtinAquafi = afi == null ? null : afi.getFunctionIdentifier();
 
-		LogicalVariable resV = context.newVar();
-		AbstractFunctionCallExpression concatNonNull = new ScalarFunctionCallExpression(
-				FunctionUtils
-						.getFunctionInfo(AsterixBuiltinFunctions.CONCAT_NON_NULL),
-				new MutableObject<ILogicalExpression>(
-						new VariableReferenceExpression(pThen.second)),
-				new MutableObject<ILogicalExpression>(
-						new VariableReferenceExpression(pElse.second)));
-		AssignOperator a = new AssignOperator(resV,
-				new MutableObject<ILogicalExpression>(concatNonNull));
-		a.getInputs().add(new MutableObject<ILogicalOperator>(sp));
+        if (builtinAquafi != null) {
+            fi = builtinAquafi;
+        } else {
+            fi = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, functionName, arity);
+            FunctionIdentifier builtinAsterixFi = AsterixBuiltinFunctions.getBuiltinFunctionIdentifier(fi);
+            if (builtinAsterixFi != null) {
+                fi = builtinAsterixFi;
+            }
+        }
+        if (AsterixBuiltinFunctions.isBuiltinAggregateFunction(fi)) {
+            f = AsterixBuiltinFunctions.makeAggregateFunctionExpression(fi, args);
+        } else if (AsterixBuiltinFunctions.isBuiltinUnnestingFunction(fi)) {
+            UnnestingFunctionCallExpression ufce = new UnnestingFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(fi), args);
+            ufce.setReturnsUniqueValues(AsterixBuiltinFunctions.returnsUniqueValues(fi));
+            f = ufce;
+        } else {
+            f = new ScalarFunctionCallExpression(FunctionUtils.getFunctionInfo(fi), args);
+        }
+        return f;
+    }
 
-		return new Pair<ILogicalOperator, LogicalVariable>(a, resV);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitFunctionDecl(FunctionDecl fd,
+            Mutable<ILogicalOperator> tupSource) {
+        // TODO Auto-generated method stub
+        throw new NotImplementedException();
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitLiteralExpr(
-			LiteralExpr l, Mutable<ILogicalOperator> tupSource) {
-		LogicalVariable var = context.newVar();
-		AssignOperator a = new AssignOperator(var,
-				new MutableObject<ILogicalExpression>(new ConstantExpression(
-						new AsterixConstantValue(ConstantHelper
-								.objectFromLiteral(l.getValue())))));
-		if (tupSource != null) {
-			a.getInputs().add(tupSource);
-		}
-		return new Pair<ILogicalOperator, LogicalVariable>(a, var);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitGroupbyClause(GroupbyClause gc,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        GroupByOperator gOp = new GroupByOperator();
+        Mutable<ILogicalOperator> topOp = tupSource;
+        for (GbyVariableExpressionPair ve : gc.getGbyPairList()) {
+            LogicalVariable v;
+            VariableExpr vexpr = ve.getVar();
+            if (vexpr != null) {
+                v = context.newVar(vexpr);
+            } else {
+                v = context.newVar();
+            }
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(ve.getExpr(), topOp);
+            gOp.addGbyExpression(v, eo.first);
+            topOp = eo.second;
+        }
+        for (GbyVariableExpressionPair ve : gc.getDecorPairList()) {
+            LogicalVariable v;
+            VariableExpr vexpr = ve.getVar();
+            if (vexpr != null) {
+                v = context.newVar(vexpr);
+            } else {
+                v = context.newVar();
+            }
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(ve.getExpr(), topOp);
+            gOp.addDecorExpression(v, eo.first);
+            topOp = eo.second;
+        }
+        gOp.getInputs().add(topOp);
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitOperatorExpr(
-			OperatorExpr op, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		ArrayList<OperatorType> ops = op.getOpList();
-		int nOps = ops.size();
+        for (VariableExpr var : gc.getWithVarList()) {
+            LogicalVariable aggVar = context.newVar();
+            LogicalVariable oldVar = context.getVar(var);
+            List<Mutable<ILogicalExpression>> flArgs = new ArrayList<Mutable<ILogicalExpression>>(1);
+            flArgs.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(oldVar)));
+            AggregateFunctionCallExpression fListify = AsterixBuiltinFunctions.makeAggregateFunctionExpression(
+                    AsterixBuiltinFunctions.LISTIFY, flArgs);
+            AggregateOperator agg = new AggregateOperator(mkSingletonArrayList(aggVar),
+                    (List) mkSingletonArrayList(new MutableObject<ILogicalExpression>(fListify)));
 
-		if (nOps > 0
-				&& (ops.get(0) == OperatorType.AND || ops.get(0) == OperatorType.OR)) {
-			return visitAndOrOperator(op, tupSource);
-		}
+            agg.getInputs().add(
+                    new MutableObject<ILogicalOperator>(new NestedTupleSourceOperator(
+                            new MutableObject<ILogicalOperator>(gOp))));
+            ILogicalPlan plan = new ALogicalPlanImpl(new MutableObject<ILogicalOperator>(agg));
+            gOp.getNestedPlans().add(plan);
+            // Hide the variable that was part of the "with", replacing it with
+            // the one bound by the aggregation op.
+            context.setVar(var, aggVar);
+        }
 
-		ArrayList<Expression> exprs = op.getExprList();
+        gOp.getAnnotations().put(OperatorAnnotations.USE_HASH_GROUP_BY, gc.hasHashGroupByHint());
+        return new Pair<ILogicalOperator, LogicalVariable>(gOp, null);
+    }
 
-		Mutable<ILogicalOperator> topOp = tupSource;
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitIfExpr(IfExpr ifexpr, Mutable<ILogicalOperator> tupSource)
+            throws AsterixException {
+        // In the most general case, IfThenElse is translated in the following
+        // way.
+        //
+        // We assign the result of the condition to one variable varCond.
+        // We create one subplan which contains the plan for the "then" branch,
+        // on top of which there is a selection whose condition is varCond.
+        // Similarly, we create one subplan for the "else" branch, in which the
+        // selection is not(varCond).
+        // Finally, we concatenate the results. (??)
 
-		ILogicalExpression currExpr = null;
-		for (int i = 0; i <= nOps; i++) {
+        Pair<ILogicalOperator, LogicalVariable> pCond = ifexpr.getCondExpr().accept(this, tupSource);
+        ILogicalOperator opCond = pCond.first;
+        LogicalVariable varCond = pCond.second;
 
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(
-					exprs.get(i), topOp);
-			topOp = p.second;
-			ILogicalExpression e = p.first;
-			// now look at the operator
-			if (i < nOps) {
-				if (OperatorExpr.opIsComparison(ops.get(i))) {
-					AbstractFunctionCallExpression c = createComparisonExpression(ops
-							.get(i));
+        SubplanOperator sp = new SubplanOperator();
+        Mutable<ILogicalOperator> nestedSource = new MutableObject<ILogicalOperator>(new NestedTupleSourceOperator(
+                new MutableObject<ILogicalOperator>(sp)));
 
-					// chain the operators
-					if (i == 0) {
-						c.getArguments().add(
-								new MutableObject<ILogicalExpression>(e));
-						currExpr = c;
-						if (op.isBroadcastOperand(i)) {
-							BroadcastExpressionAnnotation bcast = new BroadcastExpressionAnnotation();
-							bcast.setObject(BroadcastSide.LEFT);
-							c.getAnnotations()
-									.put(BroadcastExpressionAnnotation.BROADCAST_ANNOTATION_KEY,
-											bcast);
-						}
-					} else {
-						((AbstractFunctionCallExpression) currExpr)
-								.getArguments()
-								.add(new MutableObject<ILogicalExpression>(e));
-						c.getArguments()
-								.add(new MutableObject<ILogicalExpression>(
-										currExpr));
-						currExpr = c;
-						if (i == 1 && op.isBroadcastOperand(i)) {
-							BroadcastExpressionAnnotation bcast = new BroadcastExpressionAnnotation();
-							bcast.setObject(BroadcastSide.RIGHT);
-							c.getAnnotations()
-									.put(BroadcastExpressionAnnotation.BROADCAST_ANNOTATION_KEY,
-											bcast);
-						}
-					}
-				} else {
-					AbstractFunctionCallExpression f = createFunctionCallExpressionForBuiltinOperator(ops
-							.get(i));
+        Pair<ILogicalOperator, LogicalVariable> pThen = ifexpr.getThenExpr().accept(this, nestedSource);
+        SelectOperator sel1 = new SelectOperator(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(
+                varCond)));
+        sel1.getInputs().add(new MutableObject<ILogicalOperator>(pThen.first));
 
-					if (i == 0) {
-						f.getArguments().add(
-								new MutableObject<ILogicalExpression>(e));
-						currExpr = f;
-					} else {
-						((AbstractFunctionCallExpression) currExpr)
-								.getArguments()
-								.add(new MutableObject<ILogicalExpression>(e));
-						f.getArguments()
-								.add(new MutableObject<ILogicalExpression>(
-										currExpr));
-						currExpr = f;
-					}
-				}
-			} else { // don't forget the last expression...
-				((AbstractFunctionCallExpression) currExpr).getArguments().add(
-						new MutableObject<ILogicalExpression>(e));
-				if (i == 1 && op.isBroadcastOperand(i)) {
-					BroadcastExpressionAnnotation bcast = new BroadcastExpressionAnnotation();
-					bcast.setObject(BroadcastSide.RIGHT);
-					((AbstractFunctionCallExpression) currExpr)
-							.getAnnotations()
-							.put(BroadcastExpressionAnnotation.BROADCAST_ANNOTATION_KEY,
-									bcast);
-				}
-			}
-		}
+        Pair<ILogicalOperator, LogicalVariable> pElse = ifexpr.getElseExpr().accept(this, nestedSource);
+        AbstractFunctionCallExpression notVarCond = new ScalarFunctionCallExpression(
+                FunctionUtils.getFunctionInfo(AlgebricksBuiltinFunctions.NOT), new MutableObject<ILogicalExpression>(
+                        new VariableReferenceExpression(varCond)));
+        SelectOperator sel2 = new SelectOperator(new MutableObject<ILogicalExpression>(notVarCond));
+        sel2.getInputs().add(new MutableObject<ILogicalOperator>(pElse.first));
 
-		// Add hints as annotations.
-		if (op.hasHints() && currExpr instanceof AbstractFunctionCallExpression) {
-			AbstractFunctionCallExpression currFuncExpr = (AbstractFunctionCallExpression) currExpr;
-			for (IExpressionAnnotation hint : op.getHints()) {
-				currFuncExpr.getAnnotations().put(hint, hint);
-			}
-		}
-		
-		LogicalVariable assignedVar = context.newVar();
-		AssignOperator a = new AssignOperator(assignedVar,
-				new MutableObject<ILogicalExpression>(currExpr));
+        ILogicalPlan p1 = new ALogicalPlanImpl(new MutableObject<ILogicalOperator>(sel1));
+        sp.getNestedPlans().add(p1);
+        ILogicalPlan p2 = new ALogicalPlanImpl(new MutableObject<ILogicalOperator>(sel2));
+        sp.getNestedPlans().add(p2);
 
-		a.getInputs().add(topOp);
+        Mutable<ILogicalOperator> opCondRef = new MutableObject<ILogicalOperator>(opCond);
+        sp.getInputs().add(opCondRef);
 
-		return new Pair<ILogicalOperator, LogicalVariable>(a, assignedVar);
-	}
+        LogicalVariable resV = context.newVar();
+        AbstractFunctionCallExpression concatNonNull = new ScalarFunctionCallExpression(
+                FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.CONCAT_NON_NULL),
+                new MutableObject<ILogicalExpression>(new VariableReferenceExpression(pThen.second)),
+                new MutableObject<ILogicalExpression>(new VariableReferenceExpression(pElse.second)));
+        AssignOperator a = new AssignOperator(resV, new MutableObject<ILogicalExpression>(concatNonNull));
+        a.getInputs().add(new MutableObject<ILogicalOperator>(sp));
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitOrderbyClause(
-			OrderbyClause oc, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
+        return new Pair<ILogicalOperator, LogicalVariable>(a, resV);
+    }
 
-		OrderOperator ord = new OrderOperator();
-		Iterator<OrderModifier> modifIter = oc.getModifierList().iterator();
-		Mutable<ILogicalOperator> topOp = tupSource;
-		for (Expression e : oc.getOrderbyList()) {
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(
-					e, topOp);
-			OrderModifier m = modifIter.next();
-			OrderOperator.IOrder comp = (m == OrderModifier.ASC) ? OrderOperator.ASC_ORDER
-					: OrderOperator.DESC_ORDER;
-			ord.getOrderExpressions().add(
-					new Pair<IOrder, Mutable<ILogicalExpression>>(comp,
-							new MutableObject<ILogicalExpression>(p.first)));
-			topOp = p.second;
-		}
-		ord.getInputs().add(topOp);
-		if (oc.getNumTuples() > 0) {
-			ord.getAnnotations().put(OperatorAnnotations.CARDINALITY,
-					oc.getNumTuples());
-		}
-		if (oc.getNumFrames() > 0) {
-			ord.getAnnotations().put(OperatorAnnotations.MAX_NUMBER_FRAMES,
-					oc.getNumFrames());
-		}
-		return new Pair<ILogicalOperator, LogicalVariable>(ord, null);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitLiteralExpr(LiteralExpr l, Mutable<ILogicalOperator> tupSource) {
+        LogicalVariable var = context.newVar();
+        AssignOperator a = new AssignOperator(var, new MutableObject<ILogicalExpression>(new ConstantExpression(
+                new AsterixConstantValue(ConstantHelper.objectFromLiteral(l.getValue())))));
+        if (tupSource != null) {
+            a.getInputs().add(tupSource);
+        }
+        return new Pair<ILogicalOperator, LogicalVariable>(a, var);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitQuantifiedExpression(
-			QuantifiedExpression qe, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		Mutable<ILogicalOperator> topOp = tupSource;
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitOperatorExpr(OperatorExpr op,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        ArrayList<OperatorType> ops = op.getOpList();
+        int nOps = ops.size();
 
-		ILogicalOperator firstOp = null;
-		Mutable<ILogicalOperator> lastOp = null;
+        if (nOps > 0 && (ops.get(0) == OperatorType.AND || ops.get(0) == OperatorType.OR)) {
+            return visitAndOrOperator(op, tupSource);
+        }
 
-		for (QuantifiedPair qt : qe.getQuantifiedList()) {
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo1 = aqlExprToAlgExpression(
-					qt.getExpr(), topOp);
-			topOp = eo1.second;
-			LogicalVariable uVar = context.newVar(qt.getVarExpr());
-			ILogicalOperator u = new UnnestOperator(uVar,
-					new MutableObject<ILogicalExpression>(
-							makeUnnestExpression(eo1.first)));
+        ArrayList<Expression> exprs = op.getExprList();
 
-			if (firstOp == null) {
-				firstOp = u;
-			}
-			if (lastOp != null) {
-				u.getInputs().add(lastOp);
-			}
-			lastOp = new MutableObject<ILogicalOperator>(u);
-		}
+        Mutable<ILogicalOperator> topOp = tupSource;
+
+        ILogicalExpression currExpr = null;
+        for (int i = 0; i <= nOps; i++) {
+
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(exprs.get(i), topOp);
+            topOp = p.second;
+            ILogicalExpression e = p.first;
+            // now look at the operator
+            if (i < nOps) {
+                if (OperatorExpr.opIsComparison(ops.get(i))) {
+                    AbstractFunctionCallExpression c = createComparisonExpression(ops.get(i));
+
+                    // chain the operators
+                    if (i == 0) {
+                        c.getArguments().add(new MutableObject<ILogicalExpression>(e));
+                        currExpr = c;
+                        if (op.isBroadcastOperand(i)) {
+                            BroadcastExpressionAnnotation bcast = new BroadcastExpressionAnnotation();
+                            bcast.setObject(BroadcastSide.LEFT);
+                            c.getAnnotations().put(BroadcastExpressionAnnotation.BROADCAST_ANNOTATION_KEY, bcast);
+                        }
+                    } else {
+                        ((AbstractFunctionCallExpression) currExpr).getArguments().add(
+                                new MutableObject<ILogicalExpression>(e));
+                        c.getArguments().add(new MutableObject<ILogicalExpression>(currExpr));
+                        currExpr = c;
+                        if (i == 1 && op.isBroadcastOperand(i)) {
+                            BroadcastExpressionAnnotation bcast = new BroadcastExpressionAnnotation();
+                            bcast.setObject(BroadcastSide.RIGHT);
+                            c.getAnnotations().put(BroadcastExpressionAnnotation.BROADCAST_ANNOTATION_KEY, bcast);
+                        }
+                    }
+                } else {
+                    AbstractFunctionCallExpression f = createFunctionCallExpressionForBuiltinOperator(ops.get(i));
+
+                    if (i == 0) {
+                        f.getArguments().add(new MutableObject<ILogicalExpression>(e));
+                        currExpr = f;
+                    } else {
+                        ((AbstractFunctionCallExpression) currExpr).getArguments().add(
+                                new MutableObject<ILogicalExpression>(e));
+                        f.getArguments().add(new MutableObject<ILogicalExpression>(currExpr));
+                        currExpr = f;
+                    }
+                }
+            } else { // don't forget the last expression...
+                ((AbstractFunctionCallExpression) currExpr).getArguments()
+                        .add(new MutableObject<ILogicalExpression>(e));
+                if (i == 1 && op.isBroadcastOperand(i)) {
+                    BroadcastExpressionAnnotation bcast = new BroadcastExpressionAnnotation();
+                    bcast.setObject(BroadcastSide.RIGHT);
+                    ((AbstractFunctionCallExpression) currExpr).getAnnotations().put(
+                            BroadcastExpressionAnnotation.BROADCAST_ANNOTATION_KEY, bcast);
+                }
+            }
+        }
+
+        // Add hints as annotations.
+        if (op.hasHints() && currExpr instanceof AbstractFunctionCallExpression) {
+            AbstractFunctionCallExpression currFuncExpr = (AbstractFunctionCallExpression) currExpr;
+            for (IExpressionAnnotation hint : op.getHints()) {
+                currFuncExpr.getAnnotations().put(hint, hint);
+            }
+        }
+
+        LogicalVariable assignedVar = context.newVar();
+        AssignOperator a = new AssignOperator(assignedVar, new MutableObject<ILogicalExpression>(currExpr));
+
+        a.getInputs().add(topOp);
+
+        return new Pair<ILogicalOperator, LogicalVariable>(a, assignedVar);
+    }
+
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitOrderbyClause(OrderbyClause oc,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+
+        OrderOperator ord = new OrderOperator();
+        Iterator<OrderModifier> modifIter = oc.getModifierList().iterator();
+        Mutable<ILogicalOperator> topOp = tupSource;
+        for (Expression e : oc.getOrderbyList()) {
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(e, topOp);
+            OrderModifier m = modifIter.next();
+            OrderOperator.IOrder comp = (m == OrderModifier.ASC) ? OrderOperator.ASC_ORDER : OrderOperator.DESC_ORDER;
+            ord.getOrderExpressions()
+                    .add(new Pair<IOrder, Mutable<ILogicalExpression>>(comp, new MutableObject<ILogicalExpression>(
+                            p.first)));
+            topOp = p.second;
+        }
+        ord.getInputs().add(topOp);
+        if (oc.getNumTuples() > 0) {
+            ord.getAnnotations().put(OperatorAnnotations.CARDINALITY, oc.getNumTuples());
+        }
+        if (oc.getNumFrames() > 0) {
+            ord.getAnnotations().put(OperatorAnnotations.MAX_NUMBER_FRAMES, oc.getNumFrames());
+        }
+        return new Pair<ILogicalOperator, LogicalVariable>(ord, null);
+    }
+
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitQuantifiedExpression(QuantifiedExpression qe,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        Mutable<ILogicalOperator> topOp = tupSource;
+
+        ILogicalOperator firstOp = null;
+        Mutable<ILogicalOperator> lastOp = null;
+
+        for (QuantifiedPair qt : qe.getQuantifiedList()) {
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo1 = aqlExprToAlgExpression(qt.getExpr(), topOp);
+            topOp = eo1.second;
+            LogicalVariable uVar = context.newVar(qt.getVarExpr());
+            ILogicalOperator u = new UnnestOperator(uVar, new MutableObject<ILogicalExpression>(
+                    makeUnnestExpression(eo1.first)));
+
+            if (firstOp == null) {
+                firstOp = u;
+            }
+            if (lastOp != null) {
+                u.getInputs().add(lastOp);
+            }
+            lastOp = new MutableObject<ILogicalOperator>(u);
+        }
 
-		// We make all the unnest correspond. to quantif. vars. sit on top
-		// in the hope of enabling joins & other optimiz.
-		firstOp.getInputs().add(topOp);
-		topOp = lastOp;
+        // We make all the unnest correspond. to quantif. vars. sit on top
+        // in the hope of enabling joins & other optimiz.
+        firstOp.getInputs().add(topOp);
+        topOp = lastOp;
 
-		Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo2 = aqlExprToAlgExpression(
-				qe.getSatisfiesExpr(), topOp);
+        Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo2 = aqlExprToAlgExpression(qe.getSatisfiesExpr(), topOp);
 
-		AggregateFunctionCallExpression fAgg;
-		SelectOperator s;
-		if (qe.getQuantifier() == Quantifier.SOME) {
-			s = new SelectOperator(new MutableObject<ILogicalExpression>(
-					eo2.first));
-			s.getInputs().add(eo2.second);
-			fAgg = AsterixBuiltinFunctions.makeAggregateFunctionExpression(
-					AsterixBuiltinFunctions.NON_EMPTY_STREAM,
-					new ArrayList<Mutable<ILogicalExpression>>());
-		} else { // EVERY
-			List<Mutable<ILogicalExpression>> satExprList = new ArrayList<Mutable<ILogicalExpression>>(
-					1);
-			satExprList.add(new MutableObject<ILogicalExpression>(eo2.first));
-			s = new SelectOperator(new MutableObject<ILogicalExpression>(
-					new ScalarFunctionCallExpression(FunctionUtils
-							.getFunctionInfo(AlgebricksBuiltinFunctions.NOT),
-							satExprList)));
-			s.getInputs().add(eo2.second);
-			fAgg = AsterixBuiltinFunctions.makeAggregateFunctionExpression(
-					AsterixBuiltinFunctions.EMPTY_STREAM,
-					new ArrayList<Mutable<ILogicalExpression>>());
-		}
-		LogicalVariable qeVar = context.newVar();
-		AggregateOperator a = new AggregateOperator(
-				mkSingletonArrayList(qeVar),
-				(List) mkSingletonArrayList(new MutableObject<ILogicalExpression>(
-						fAgg)));
-		a.getInputs().add(new MutableObject<ILogicalOperator>(s));
-		return new Pair<ILogicalOperator, LogicalVariable>(a, qeVar);
-	}
+        AggregateFunctionCallExpression fAgg;
+        SelectOperator s;
+        if (qe.getQuantifier() == Quantifier.SOME) {
+            s = new SelectOperator(new MutableObject<ILogicalExpression>(eo2.first));
+            s.getInputs().add(eo2.second);
+            fAgg = AsterixBuiltinFunctions.makeAggregateFunctionExpression(AsterixBuiltinFunctions.NON_EMPTY_STREAM,
+                    new ArrayList<Mutable<ILogicalExpression>>());
+        } else { // EVERY
+            List<Mutable<ILogicalExpression>> satExprList = new ArrayList<Mutable<ILogicalExpression>>(1);
+            satExprList.add(new MutableObject<ILogicalExpression>(eo2.first));
+            s = new SelectOperator(new MutableObject<ILogicalExpression>(new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AlgebricksBuiltinFunctions.NOT), satExprList)));
+            s.getInputs().add(eo2.second);
+            fAgg = AsterixBuiltinFunctions.makeAggregateFunctionExpression(AsterixBuiltinFunctions.EMPTY_STREAM,
+                    new ArrayList<Mutable<ILogicalExpression>>());
+        }
+        LogicalVariable qeVar = context.newVar();
+        AggregateOperator a = new AggregateOperator(mkSingletonArrayList(qeVar),
+                (List) mkSingletonArrayList(new MutableObject<ILogicalExpression>(fAgg)));
+        a.getInputs().add(new MutableObject<ILogicalOperator>(s));
+        return new Pair<ILogicalOperator, LogicalVariable>(a, qeVar);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitQuery(Query q,
-			Mutable<ILogicalOperator> tupSource) throws AsterixException {
-		return q.getBody().accept(this, tupSource);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitQuery(Query q, Mutable<ILogicalOperator> tupSource)
+            throws AsterixException {
+        return q.getBody().accept(this, tupSource);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitRecordConstructor(
-			RecordConstructor rc, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		AbstractFunctionCallExpression f = new ScalarFunctionCallExpression(
-				FunctionUtils
-						.getFunctionInfo(AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR));
-		LogicalVariable v1 = context.newVar();
-		AssignOperator a = new AssignOperator(v1,
-				new MutableObject<ILogicalExpression>(f));
-		Mutable<ILogicalOperator> topOp = tupSource;
-		for (FieldBinding fb : rc.getFbList()) {
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo1 = aqlExprToAlgExpression(
-					fb.getLeftExpr(), topOp);
-			f.getArguments().add(
-					new MutableObject<ILogicalExpression>(eo1.first));
-			topOp = eo1.second;
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo2 = aqlExprToAlgExpression(
-					fb.getRightExpr(), topOp);
-			f.getArguments().add(
-					new MutableObject<ILogicalExpression>(eo2.first));
-			topOp = eo2.second;
-		}
-		a.getInputs().add(topOp);
-		return new Pair<ILogicalOperator, LogicalVariable>(a, v1);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitRecordConstructor(RecordConstructor rc,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        AbstractFunctionCallExpression f = new ScalarFunctionCallExpression(
+                FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR));
+        LogicalVariable v1 = context.newVar();
+        AssignOperator a = new AssignOperator(v1, new MutableObject<ILogicalExpression>(f));
+        Mutable<ILogicalOperator> topOp = tupSource;
+        for (FieldBinding fb : rc.getFbList()) {
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo1 = aqlExprToAlgExpression(fb.getLeftExpr(), topOp);
+            f.getArguments().add(new MutableObject<ILogicalExpression>(eo1.first));
+            topOp = eo1.second;
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo2 = aqlExprToAlgExpression(fb.getRightExpr(), topOp);
+            f.getArguments().add(new MutableObject<ILogicalExpression>(eo2.first));
+            topOp = eo2.second;
+        }
+        a.getInputs().add(topOp);
+        return new Pair<ILogicalOperator, LogicalVariable>(a, v1);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitListConstructor(
-			ListConstructor lc, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		FunctionIdentifier fid = (lc.getType() == Type.ORDERED_LIST_CONSTRUCTOR) ? AsterixBuiltinFunctions.ORDERED_LIST_CONSTRUCTOR
-				: AsterixBuiltinFunctions.UNORDERED_LIST_CONSTRUCTOR;
-		AbstractFunctionCallExpression f = new ScalarFunctionCallExpression(
-				FunctionUtils.getFunctionInfo(fid));
-		LogicalVariable v1 = context.newVar();
-		AssignOperator a = new AssignOperator(v1,
-				new MutableObject<ILogicalExpression>(f));
-		Mutable<ILogicalOperator> topOp = tupSource;
-		for (Expression expr : lc.getExprList()) {
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(
-					expr, topOp);
-			f.getArguments().add(
-					new MutableObject<ILogicalExpression>(eo.first));
-			topOp = eo.second;
-		}
-		a.getInputs().add(topOp);
-		return new Pair<ILogicalOperator, LogicalVariable>(a, v1);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitListConstructor(ListConstructor lc,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        FunctionIdentifier fid = (lc.getType() == Type.ORDERED_LIST_CONSTRUCTOR) ? AsterixBuiltinFunctions.ORDERED_LIST_CONSTRUCTOR
+                : AsterixBuiltinFunctions.UNORDERED_LIST_CONSTRUCTOR;
+        AbstractFunctionCallExpression f = new ScalarFunctionCallExpression(FunctionUtils.getFunctionInfo(fid));
+        LogicalVariable v1 = context.newVar();
+        AssignOperator a = new AssignOperator(v1, new MutableObject<ILogicalExpression>(f));
+        Mutable<ILogicalOperator> topOp = tupSource;
+        for (Expression expr : lc.getExprList()) {
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(expr, topOp);
+            f.getArguments().add(new MutableObject<ILogicalExpression>(eo.first));
+            topOp = eo.second;
+        }
+        a.getInputs().add(topOp);
+        return new Pair<ILogicalOperator, LogicalVariable>(a, v1);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitUnaryExpr(UnaryExpr u,
-			Mutable<ILogicalOperator> tupSource) throws AsterixException {
-		Expression expr = u.getExpr();
-		Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(
-				expr, tupSource);
-		LogicalVariable v1 = context.newVar();
-		AssignOperator a;
-		if (u.getSign() == Sign.POSITIVE) {
-			a = new AssignOperator(v1, new MutableObject<ILogicalExpression>(
-					eo.first));
-		} else {
-			AbstractFunctionCallExpression m = new ScalarFunctionCallExpression(
-					FunctionUtils
-							.getFunctionInfo(AsterixBuiltinFunctions.NUMERIC_UNARY_MINUS));
-			m.getArguments().add(
-					new MutableObject<ILogicalExpression>(eo.first));
-			a = new AssignOperator(v1, new MutableObject<ILogicalExpression>(m));
-		}
-		a.getInputs().add(eo.second);
-		return new Pair<ILogicalOperator, LogicalVariable>(a, v1);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitUnaryExpr(UnaryExpr u, Mutable<ILogicalOperator> tupSource)
+            throws AsterixException {
+        Expression expr = u.getExpr();
+        Pair<ILogicalExpression, Mutable<ILogicalOperator>> eo = aqlExprToAlgExpression(expr, tupSource);
+        LogicalVariable v1 = context.newVar();
+        AssignOperator a;
+        if (u.getSign() == Sign.POSITIVE) {
+            a = new AssignOperator(v1, new MutableObject<ILogicalExpression>(eo.first));
+        } else {
+            AbstractFunctionCallExpression m = new ScalarFunctionCallExpression(
+                    FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.NUMERIC_UNARY_MINUS));
+            m.getArguments().add(new MutableObject<ILogicalExpression>(eo.first));
+            a = new AssignOperator(v1, new MutableObject<ILogicalExpression>(m));
+        }
+        a.getInputs().add(eo.second);
+        return new Pair<ILogicalOperator, LogicalVariable>(a, v1);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitVariableExpr(
-			VariableExpr v, Mutable<ILogicalOperator> tupSource) {
-		// Should we ever get to this method?
-		LogicalVariable var = context.newVar();
-		LogicalVariable oldV = context.getVar(v.getVar().getId());
-		AssignOperator a = new AssignOperator(var,
-				new MutableObject<ILogicalExpression>(
-						new VariableReferenceExpression(oldV)));
-		a.getInputs().add(tupSource);
-		return new Pair<ILogicalOperator, LogicalVariable>(a, var);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitVariableExpr(VariableExpr v, Mutable<ILogicalOperator> tupSource) {
+        // Should we ever get to this method?
+        LogicalVariable var = context.newVar();
+        LogicalVariable oldV = context.getVar(v.getVar().getId());
+        AssignOperator a = new AssignOperator(var, new MutableObject<ILogicalExpression>(
+                new VariableReferenceExpression(oldV)));
+        a.getInputs().add(tupSource);
+        return new Pair<ILogicalOperator, LogicalVariable>(a, var);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitWhereClause(
-			WhereClause w, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(
-				w.getWhereExpr(), tupSource);
-		SelectOperator s = new SelectOperator(
-				new MutableObject<ILogicalExpression>(p.first));
-		s.getInputs().add(p.second);
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitWhereClause(WhereClause w, Mutable<ILogicalOperator> tupSource)
+            throws AsterixException {
+        Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(w.getWhereExpr(), tupSource);
+        SelectOperator s = new SelectOperator(new MutableObject<ILogicalExpression>(p.first));
+        s.getInputs().add(p.second);
 
-		return new Pair<ILogicalOperator, LogicalVariable>(s, null);
-	}
+        return new Pair<ILogicalOperator, LogicalVariable>(s, null);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitLimitClause(
-			LimitClause lc, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		Pair<ILogicalExpression, Mutable<ILogicalOperator>> p1 = aqlExprToAlgExpression(
-				lc.getLimitExpr(), tupSource);
-		LimitOperator opLim;
-		Expression offset = lc.getOffset();
-		if (offset != null) {
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> p2 = aqlExprToAlgExpression(
-					offset, p1.second);
-			opLim = new LimitOperator(p1.first, p2.first);
-			opLim.getInputs().add(p2.second);
-		} else {
-			opLim = new LimitOperator(p1.first);
-			opLim.getInputs().add(p1.second);
-		}
-		return new Pair<ILogicalOperator, LogicalVariable>(opLim, null);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitLimitClause(LimitClause lc, Mutable<ILogicalOperator> tupSource)
+            throws AsterixException {
+        Pair<ILogicalExpression, Mutable<ILogicalOperator>> p1 = aqlExprToAlgExpression(lc.getLimitExpr(), tupSource);
+        LimitOperator opLim;
+        Expression offset = lc.getOffset();
+        if (offset != null) {
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> p2 = aqlExprToAlgExpression(offset, p1.second);
+            opLim = new LimitOperator(p1.first, p2.first);
+            opLim.getInputs().add(p2.second);
+        } else {
+            opLim = new LimitOperator(p1.first);
+            opLim.getInputs().add(p1.second);
+        }
+        return new Pair<ILogicalOperator, LogicalVariable>(opLim, null);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitDieClause(DieClause lc,
-			Mutable<ILogicalOperator> tupSource) throws AsterixException {
-		Pair<ILogicalExpression, Mutable<ILogicalOperator>> p1 = aqlExprToAlgExpression(
-				lc.getDieExpr(), tupSource);
-		DieOperator opDie = new DieOperator(p1.first);
-		opDie.getInputs().add(p1.second);
-		return new Pair<ILogicalOperator, LogicalVariable>(opDie, null);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitDieClause(DieClause lc, Mutable<ILogicalOperator> tupSource)
+            throws AsterixException {
+        Pair<ILogicalExpression, Mutable<ILogicalOperator>> p1 = aqlExprToAlgExpression(lc.getDieExpr(), tupSource);
+        DieOperator opDie = new DieOperator(p1.first);
+        opDie.getInputs().add(p1.second);
+        return new Pair<ILogicalOperator, LogicalVariable>(opDie, null);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitDistinctClause(
-			DistinctClause dc, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		List<Mutable<ILogicalExpression>> exprList = new ArrayList<Mutable<ILogicalExpression>>();
-		Mutable<ILogicalOperator> input = null;
-		for (Expression expr : dc.getDistinctByExpr()) {
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(
-					expr, tupSource);
-			exprList.add(new MutableObject<ILogicalExpression>(p.first));
-			input = p.second;
-		}
-		DistinctOperator opDistinct = new DistinctOperator(exprList);
-		opDistinct.getInputs().add(input);
-		return new Pair<ILogicalOperator, LogicalVariable>(opDistinct, null);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitDistinctClause(DistinctClause dc,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        List<Mutable<ILogicalExpression>> exprList = new ArrayList<Mutable<ILogicalExpression>>();
+        Mutable<ILogicalOperator> input = null;
+        for (Expression expr : dc.getDistinctByExpr()) {
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(expr, tupSource);
+            exprList.add(new MutableObject<ILogicalExpression>(p.first));
+            input = p.second;
+        }
+        DistinctOperator opDistinct = new DistinctOperator(exprList);
+        opDistinct.getInputs().add(input);
+        return new Pair<ILogicalOperator, LogicalVariable>(opDistinct, null);
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitUnionExpr(
-			UnionExpr unionExpr, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		Mutable<ILogicalOperator> ts = tupSource;
-		ILogicalOperator lastOp = null;
-		LogicalVariable lastVar = null;
-		boolean first = true;
-		for (Expression e : unionExpr.getExprs()) {
-			if (first) {
-				first = false;
-			} else {
-				ts = new MutableObject<ILogicalOperator>(
-						new EmptyTupleSourceOperator());
-			}
-			Pair<ILogicalOperator, LogicalVariable> p1 = e.accept(this, ts);
-			if (lastOp == null) {
-				lastOp = p1.first;
-				lastVar = p1.second;
-			} else {
-				LogicalVariable unnestVar1 = context.newVar();
-				UnnestOperator unnest1 = new UnnestOperator(
-						unnestVar1,
-						new MutableObject<ILogicalExpression>(
-								makeUnnestExpression(new VariableReferenceExpression(
-										lastVar))));
-				unnest1.getInputs().add(
-						new MutableObject<ILogicalOperator>(lastOp));
-				LogicalVariable unnestVar2 = context.newVar();
-				UnnestOperator unnest2 = new UnnestOperator(
-						unnestVar2,
-						new MutableObject<ILogicalExpression>(
-								makeUnnestExpression(new VariableReferenceExpression(
-										p1.second))));
-				unnest2.getInputs().add(
-						new MutableObject<ILogicalOperator>(p1.first));
-				List<Triple<LogicalVariable, LogicalVariable, LogicalVariable>> varMap = new ArrayList<Triple<LogicalVariable, LogicalVariable, LogicalVariable>>(
-						1);
-				LogicalVariable resultVar = context.newVar();
-				Triple<LogicalVariable, LogicalVariable, LogicalVariable> triple = new Triple<LogicalVariable, LogicalVariable, LogicalVariable>(
-						unnestVar1, unnestVar2, resultVar);
-				varMap.add(triple);
-				UnionAllOperator unionOp = new UnionAllOperator(varMap);
-				unionOp.getInputs().add(
-						new MutableObject<ILogicalOperator>(unnest1));
-				unionOp.getInputs().add(
-						new MutableObject<ILogicalOperator>(unnest2));
-				lastVar = resultVar;
-				lastOp = unionOp;
-			}
-		}
-		LogicalVariable aggVar = context.newVar();
-		ArrayList<LogicalVariable> aggregVars = new ArrayList<LogicalVariable>(
-				1);
-		aggregVars.add(aggVar);
-		List<Mutable<ILogicalExpression>> afcExprs = new ArrayList<Mutable<ILogicalExpression>>(
-				1);
-		afcExprs.add(new MutableObject<ILogicalExpression>(
-				new VariableReferenceExpression(lastVar)));
-		AggregateFunctionCallExpression afc = AsterixBuiltinFunctions
-				.makeAggregateFunctionExpression(
-						AsterixBuiltinFunctions.LISTIFY, afcExprs);
-		ArrayList<Mutable<ILogicalExpression>> aggregExprs = new ArrayList<Mutable<ILogicalExpression>>(
-				1);
-		aggregExprs.add(new MutableObject<ILogicalExpression>(afc));
-		AggregateOperator agg = new AggregateOperator(aggregVars, aggregExprs);
-		agg.getInputs().add(new MutableObject<ILogicalOperator>(lastOp));
-		return new Pair<ILogicalOperator, LogicalVariable>(agg, aggVar);
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitUnionExpr(UnionExpr unionExpr,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        Mutable<ILogicalOperator> ts = tupSource;
+        ILogicalOperator lastOp = null;
+        LogicalVariable lastVar = null;
+        boolean first = true;
+        for (Expression e : unionExpr.getExprs()) {
+            if (first) {
+                first = false;
+            } else {
+                ts = new MutableObject<ILogicalOperator>(new EmptyTupleSourceOperator());
+            }
+            Pair<ILogicalOperator, LogicalVariable> p1 = e.accept(this, ts);
+            if (lastOp == null) {
+                lastOp = p1.first;
+                lastVar = p1.second;
+            } else {
+                LogicalVariable unnestVar1 = context.newVar();
+                UnnestOperator unnest1 = new UnnestOperator(unnestVar1, new MutableObject<ILogicalExpression>(
+                        makeUnnestExpression(new VariableReferenceExpression(lastVar))));
+                unnest1.getInputs().add(new MutableObject<ILogicalOperator>(lastOp));
+                LogicalVariable unnestVar2 = context.newVar();
+                UnnestOperator unnest2 = new UnnestOperator(unnestVar2, new MutableObject<ILogicalExpression>(
+                        makeUnnestExpression(new VariableReferenceExpression(p1.second))));
+                unnest2.getInputs().add(new MutableObject<ILogicalOperator>(p1.first));
+                List<Triple<LogicalVariable, LogicalVariable, LogicalVariable>> varMap = new ArrayList<Triple<LogicalVariable, LogicalVariable, LogicalVariable>>(
+                        1);
+                LogicalVariable resultVar = context.newVar();
+                Triple<LogicalVariable, LogicalVariable, LogicalVariable> triple = new Triple<LogicalVariable, LogicalVariable, LogicalVariable>(
+                        unnestVar1, unnestVar2, resultVar);
+                varMap.add(triple);
+                UnionAllOperator unionOp = new UnionAllOperator(varMap);
+                unionOp.getInputs().add(new MutableObject<ILogicalOperator>(unnest1));
+                unionOp.getInputs().add(new MutableObject<ILogicalOperator>(unnest2));
+                lastVar = resultVar;
+                lastOp = unionOp;
+            }
+        }
+        LogicalVariable aggVar = context.newVar();
+        ArrayList<LogicalVariable> aggregVars = new ArrayList<LogicalVariable>(1);
+        aggregVars.add(aggVar);
+        List<Mutable<ILogicalExpression>> afcExprs = new ArrayList<Mutable<ILogicalExpression>>(1);
+        afcExprs.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(lastVar)));
+        AggregateFunctionCallExpression afc = AsterixBuiltinFunctions.makeAggregateFunctionExpression(
+                AsterixBuiltinFunctions.LISTIFY, afcExprs);
+        ArrayList<Mutable<ILogicalExpression>> aggregExprs = new ArrayList<Mutable<ILogicalExpression>>(1);
+        aggregExprs.add(new MutableObject<ILogicalExpression>(afc));
+        AggregateOperator agg = new AggregateOperator(aggregVars, aggregExprs);
+        agg.getInputs().add(new MutableObject<ILogicalOperator>(lastOp));
+        return new Pair<ILogicalOperator, LogicalVariable>(agg, aggVar);
+    }
 
-	private AbstractFunctionCallExpression createComparisonExpression(
-			OperatorType t) {
-		FunctionIdentifier fi = operatorTypeToFunctionIdentifier(t);
-		IFunctionInfo finfo = FunctionUtils.getFunctionInfo(fi);
-		return new ScalarFunctionCallExpression(finfo);
-	}
+    private AbstractFunctionCallExpression createComparisonExpression(OperatorType t) {
+        FunctionIdentifier fi = operatorTypeToFunctionIdentifier(t);
+        IFunctionInfo finfo = FunctionUtils.getFunctionInfo(fi);
+        return new ScalarFunctionCallExpression(finfo);
+    }
 
-	private FunctionIdentifier operatorTypeToFunctionIdentifier(OperatorType t) {
-		switch (t) {
-		case EQ: {
-			return AlgebricksBuiltinFunctions.EQ;
-		}
-		case NEQ: {
-			return AlgebricksBuiltinFunctions.NEQ;
-		}
-		case GT: {
-			return AlgebricksBuiltinFunctions.GT;
-		}
-		case GE: {
-			return AlgebricksBuiltinFunctions.GE;
-		}
-		case LT: {
-			return AlgebricksBuiltinFunctions.LT;
-		}
-		case LE: {
-			return AlgebricksBuiltinFunctions.LE;
-		}
-		default: {
-			throw new IllegalStateException();
-		}
-		}
-	}
+    private FunctionIdentifier operatorTypeToFunctionIdentifier(OperatorType t) {
+        switch (t) {
+            case EQ: {
+                return AlgebricksBuiltinFunctions.EQ;
+            }
+            case NEQ: {
+                return AlgebricksBuiltinFunctions.NEQ;
+            }
+            case GT: {
+                return AlgebricksBuiltinFunctions.GT;
+            }
+            case GE: {
+                return AlgebricksBuiltinFunctions.GE;
+            }
+            case LT: {
+                return AlgebricksBuiltinFunctions.LT;
+            }
+            case LE: {
+                return AlgebricksBuiltinFunctions.LE;
+            }
+            default: {
+                throw new IllegalStateException();
+            }
+        }
+    }
 
-	private AbstractFunctionCallExpression createFunctionCallExpressionForBuiltinOperator(
-			OperatorType t) throws AsterixException {
+    private AbstractFunctionCallExpression createFunctionCallExpressionForBuiltinOperator(OperatorType t)
+            throws AsterixException {
 
-		FunctionIdentifier fid = null;
-		switch (t) {
-		case PLUS: {
-			fid = AlgebricksBuiltinFunctions.NUMERIC_ADD;
-			break;
-		}
-		case MINUS: {
-			fid = AsterixBuiltinFunctions.NUMERIC_SUBTRACT;
-			break;
-		}
-		case MUL: {
-			fid = AsterixBuiltinFunctions.NUMERIC_MULTIPLY;
-			break;
-		}
-		case DIV: {
-			fid = AsterixBuiltinFunctions.NUMERIC_DIVIDE;
-			break;
-		}
-		case MOD: {
-			fid = AsterixBuiltinFunctions.NUMERIC_MOD;
-			break;
-		}
-		case IDIV: {
-			fid = AsterixBuiltinFunctions.NUMERIC_IDIV;
-			break;
-		}
-		case CARET: {
-			fid = AsterixBuiltinFunctions.CARET;
-			break;
-		}
-		case AND: {
-			fid = AlgebricksBuiltinFunctions.AND;
-			break;
-		}
-		case OR: {
-			fid = AlgebricksBuiltinFunctions.OR;
-			break;
-		}
-		case FUZZY_EQ: {
-			fid = AsterixBuiltinFunctions.FUZZY_EQ;
-			break;
-		}
+        FunctionIdentifier fid = null;
+        switch (t) {
+            case PLUS: {
+                fid = AlgebricksBuiltinFunctions.NUMERIC_ADD;
+                break;
+            }
+            case MINUS: {
+                fid = AsterixBuiltinFunctions.NUMERIC_SUBTRACT;
+                break;
+            }
+            case MUL: {
+                fid = AsterixBuiltinFunctions.NUMERIC_MULTIPLY;
+                break;
+            }
+            case DIV: {
+                fid = AsterixBuiltinFunctions.NUMERIC_DIVIDE;
+                break;
+            }
+            case MOD: {
+                fid = AsterixBuiltinFunctions.NUMERIC_MOD;
+                break;
+            }
+            case IDIV: {
+                fid = AsterixBuiltinFunctions.NUMERIC_IDIV;
+                break;
+            }
+            case CARET: {
+                fid = AsterixBuiltinFunctions.CARET;
+                break;
+            }
+            case AND: {
+                fid = AlgebricksBuiltinFunctions.AND;
+                break;
+            }
+            case OR: {
+                fid = AlgebricksBuiltinFunctions.OR;
+                break;
+            }
+            case FUZZY_EQ: {
+                fid = AsterixBuiltinFunctions.FUZZY_EQ;
+                break;
+            }
 
-		default: {
-			throw new NotImplementedException("Operator " + t
-					+ " is not yet implemented");
-		}
-		}
-		return new ScalarFunctionCallExpression(
-				FunctionUtils.getFunctionInfo(fid));
-	}
+            default: {
+                throw new NotImplementedException("Operator " + t + " is not yet implemented");
+            }
+        }
+        return new ScalarFunctionCallExpression(FunctionUtils.getFunctionInfo(fid));
+    }
 
-	private static boolean hasOnlyChild(ILogicalOperator parent,
-			Mutable<ILogicalOperator> childCandidate) {
-		List<Mutable<ILogicalOperator>> inp = parent.getInputs();
-		if (inp == null || inp.size() != 1) {
-			return false;
-		}
-		return inp.get(0) == childCandidate;
-	}
+    private static boolean hasOnlyChild(ILogicalOperator parent, Mutable<ILogicalOperator> childCandidate) {
+        List<Mutable<ILogicalOperator>> inp = parent.getInputs();
+        if (inp == null || inp.size() != 1) {
+            return false;
+        }
+        return inp.get(0) == childCandidate;
+    }
 
-	private Pair<ILogicalExpression, Mutable<ILogicalOperator>> aqlExprToAlgExpression(
-			Expression expr, Mutable<ILogicalOperator> topOp)
-			throws AsterixException {
-		switch (expr.getKind()) {
-		case VARIABLE_EXPRESSION: {
-			VariableReferenceExpression ve = new VariableReferenceExpression(
-					context.getVar(((VariableExpr) expr).getVar().getId()));
-			return new Pair<ILogicalExpression, Mutable<ILogicalOperator>>(ve,
-					topOp);
-		}
-		case LITERAL_EXPRESSION: {
-			LiteralExpr val = (LiteralExpr) expr;
-			return new Pair<ILogicalExpression, Mutable<ILogicalOperator>>(
-					new ConstantExpression(new AsterixConstantValue(
-							ConstantHelper.objectFromLiteral(val.getValue()))),
-					topOp);
-		}
-		default: {
-			// Mutable<ILogicalOperator> src = new
-			// Mutable<ILogicalOperator>();
-			// Mutable<ILogicalOperator> src = topOp;
-			if (expressionNeedsNoNesting(expr)) {
-				Pair<ILogicalOperator, LogicalVariable> p = expr.accept(this,
-						topOp);
-				ILogicalExpression exp = ((AssignOperator) p.first)
-						.getExpressions().get(0).getValue();
-				return new Pair<ILogicalExpression, Mutable<ILogicalOperator>>(
-						exp, p.first.getInputs().get(0));
-			} else {
-				Mutable<ILogicalOperator> src = new MutableObject<ILogicalOperator>();
+    private Pair<ILogicalExpression, Mutable<ILogicalOperator>> aqlExprToAlgExpression(Expression expr,
+            Mutable<ILogicalOperator> topOp) throws AsterixException {
+        switch (expr.getKind()) {
+            case VARIABLE_EXPRESSION: {
+                VariableReferenceExpression ve = new VariableReferenceExpression(context.getVar(((VariableExpr) expr)
+                        .getVar().getId()));
+                return new Pair<ILogicalExpression, Mutable<ILogicalOperator>>(ve, topOp);
+            }
+            case LITERAL_EXPRESSION: {
+                LiteralExpr val = (LiteralExpr) expr;
+                return new Pair<ILogicalExpression, Mutable<ILogicalOperator>>(new ConstantExpression(
+                        new AsterixConstantValue(ConstantHelper.objectFromLiteral(val.getValue()))), topOp);
+            }
+            default: {
+                // Mutable<ILogicalOperator> src = new
+                // Mutable<ILogicalOperator>();
+                // Mutable<ILogicalOperator> src = topOp;
+                if (expressionNeedsNoNesting(expr)) {
+                    Pair<ILogicalOperator, LogicalVariable> p = expr.accept(this, topOp);
+                    ILogicalExpression exp = ((AssignOperator) p.first).getExpressions().get(0).getValue();
+                    return new Pair<ILogicalExpression, Mutable<ILogicalOperator>>(exp, p.first.getInputs().get(0));
+                } else {
+                    Mutable<ILogicalOperator> src = new MutableObject<ILogicalOperator>();
 
-				Pair<ILogicalOperator, LogicalVariable> p = expr.accept(this,
-						src);
+                    Pair<ILogicalOperator, LogicalVariable> p = expr.accept(this, src);
 
-				if (((AbstractLogicalOperator) p.first).getOperatorTag() == LogicalOperatorTag.SUBPLAN) {
-					// src.setOperator(topOp.getOperator());
-					Mutable<ILogicalOperator> top2 = new MutableObject<ILogicalOperator>(
-							p.first);
-					return new Pair<ILogicalExpression, Mutable<ILogicalOperator>>(
-							new VariableReferenceExpression(p.second), top2);
-				} else {
-					SubplanOperator s = new SubplanOperator();
-					s.getInputs().add(topOp);
-					src.setValue(new NestedTupleSourceOperator(
-							new MutableObject<ILogicalOperator>(s)));
-					Mutable<ILogicalOperator> planRoot = new MutableObject<ILogicalOperator>(
-							p.first);
-					s.setRootOp(planRoot);
-					return new Pair<ILogicalExpression, Mutable<ILogicalOperator>>(
-							new VariableReferenceExpression(p.second),
-							new MutableObject<ILogicalOperator>(s));
-				}
-			}
-		}
-		}
+                    if (((AbstractLogicalOperator) p.first).getOperatorTag() == LogicalOperatorTag.SUBPLAN) {
+                        // src.setOperator(topOp.getOperator());
+                        Mutable<ILogicalOperator> top2 = new MutableObject<ILogicalOperator>(p.first);
+                        return new Pair<ILogicalExpression, Mutable<ILogicalOperator>>(new VariableReferenceExpression(
+                                p.second), top2);
+                    } else {
+                        SubplanOperator s = new SubplanOperator();
+                        s.getInputs().add(topOp);
+                        src.setValue(new NestedTupleSourceOperator(new MutableObject<ILogicalOperator>(s)));
+                        Mutable<ILogicalOperator> planRoot = new MutableObject<ILogicalOperator>(p.first);
+                        s.setRootOp(planRoot);
+                        return new Pair<ILogicalExpression, Mutable<ILogicalOperator>>(new VariableReferenceExpression(
+                                p.second), new MutableObject<ILogicalOperator>(s));
+                    }
+                }
+            }
+        }
 
-	}
+    }
 
-	private Pair<ILogicalOperator, LogicalVariable> produceFlwrResult(
-			boolean noForClause, boolean isTop,
-			Mutable<ILogicalOperator> resOpRef, LogicalVariable resVar) {
-		if (isTop) {
-			ProjectOperator pr = new ProjectOperator(resVar);
-			pr.getInputs().add(resOpRef);
-			return new Pair<ILogicalOperator, LogicalVariable>(pr, resVar);
+    private Pair<ILogicalOperator, LogicalVariable> produceFlwrResult(boolean noForClause, boolean isTop,
+            Mutable<ILogicalOperator> resOpRef, LogicalVariable resVar) {
+        if (isTop) {
+            ProjectOperator pr = new ProjectOperator(resVar);
+            pr.getInputs().add(resOpRef);
+            return new Pair<ILogicalOperator, LogicalVariable>(pr, resVar);
 
-		} else if (noForClause) {
-			return new Pair<ILogicalOperator, LogicalVariable>(
-					resOpRef.getValue(), resVar);
-		} else {
-			return aggListify(resVar, resOpRef, false);
-		}
-	}
+        } else if (noForClause) {
+            return new Pair<ILogicalOperator, LogicalVariable>(resOpRef.getValue(), resVar);
+        } else {
+            return aggListify(resVar, resOpRef, false);
+        }
+    }
 
-	private Pair<ILogicalOperator, LogicalVariable> aggListify(
-			LogicalVariable var, Mutable<ILogicalOperator> opRef,
-			boolean bProject) {
-		AggregateFunctionCallExpression funAgg = AsterixBuiltinFunctions
-				.makeAggregateFunctionExpression(
-						AsterixBuiltinFunctions.LISTIFY,
-						new ArrayList<Mutable<ILogicalExpression>>());
-		funAgg.getArguments().add(
-				new MutableObject<ILogicalExpression>(
-						new VariableReferenceExpression(var)));
-		LogicalVariable varListified = context.newVar();
-		AggregateOperator agg = new AggregateOperator(
-				mkSingletonArrayList(varListified),
-				(List) mkSingletonArrayList(new MutableObject<ILogicalExpression>(
-						funAgg)));
-		agg.getInputs().add(opRef);
-		ILogicalOperator res;
-		if (bProject) {
-			ProjectOperator pr = new ProjectOperator(varListified);
-			pr.getInputs().add(new MutableObject<ILogicalOperator>(agg));
-			res = pr;
-		} else {
-			res = agg;
-		}
-		return new Pair<ILogicalOperator, LogicalVariable>(res, varListified);
-	}
+    private Pair<ILogicalOperator, LogicalVariable> aggListify(LogicalVariable var, Mutable<ILogicalOperator> opRef,
+            boolean bProject) {
+        AggregateFunctionCallExpression funAgg = AsterixBuiltinFunctions.makeAggregateFunctionExpression(
+                AsterixBuiltinFunctions.LISTIFY, new ArrayList<Mutable<ILogicalExpression>>());
+        funAgg.getArguments().add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(var)));
+        LogicalVariable varListified = context.newVar();
+        AggregateOperator agg = new AggregateOperator(mkSingletonArrayList(varListified),
+                (List) mkSingletonArrayList(new MutableObject<ILogicalExpression>(funAgg)));
+        agg.getInputs().add(opRef);
+        ILogicalOperator res;
+        if (bProject) {
+            ProjectOperator pr = new ProjectOperator(varListified);
+            pr.getInputs().add(new MutableObject<ILogicalOperator>(agg));
+            res = pr;
+        } else {
+            res = agg;
+        }
+        return new Pair<ILogicalOperator, LogicalVariable>(res, varListified);
+    }
 
-	private Pair<ILogicalOperator, LogicalVariable> visitAndOrOperator(
-			OperatorExpr op, Mutable<ILogicalOperator> tupSource)
-			throws AsterixException {
-		ArrayList<OperatorType> ops = op.getOpList();
-		int nOps = ops.size();
+    private Pair<ILogicalOperator, LogicalVariable> visitAndOrOperator(OperatorExpr op,
+            Mutable<ILogicalOperator> tupSource) throws AsterixException {
+        ArrayList<OperatorType> ops = op.getOpList();
+        int nOps = ops.size();
 
-		ArrayList<Expression> exprs = op.getExprList();
+        ArrayList<Expression> exprs = op.getExprList();
 
-		Mutable<ILogicalOperator> topOp = tupSource;
+        Mutable<ILogicalOperator> topOp = tupSource;
 
-		OperatorType opLogical = ops.get(0);
-		AbstractFunctionCallExpression f = createFunctionCallExpressionForBuiltinOperator(opLogical);
+        OperatorType opLogical = ops.get(0);
+        AbstractFunctionCallExpression f = createFunctionCallExpressionForBuiltinOperator(opLogical);
 
-		for (int i = 0; i <= nOps; i++) {
-			Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(
-					exprs.get(i), topOp);
-			topOp = p.second;
-			// now look at the operator
-			if (i < nOps) {
-				if (ops.get(i) != opLogical) {
-					throw new TranslationException("Unexpected operator "
-							+ ops.get(i) + " in an OperatorExpr starting with "
-							+ opLogical);
-				}
-			}
-			f.getArguments()
-					.add(new MutableObject<ILogicalExpression>(p.first));
-		}
+        for (int i = 0; i <= nOps; i++) {
+            Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = aqlExprToAlgExpression(exprs.get(i), topOp);
+            topOp = p.second;
+            // now look at the operator
+            if (i < nOps) {
+                if (ops.get(i) != opLogical) {
+                    throw new TranslationException("Unexpected operator " + ops.get(i)
+                            + " in an OperatorExpr starting with " + opLogical);
+                }
+            }
+            f.getArguments().add(new MutableObject<ILogicalExpression>(p.first));
+        }
 
-		LogicalVariable assignedVar = context.newVar();
-		AssignOperator a = new AssignOperator(assignedVar,
-				new MutableObject<ILogicalExpression>(f));
-		a.getInputs().add(topOp);
+        LogicalVariable assignedVar = context.newVar();
+        AssignOperator a = new AssignOperator(assignedVar, new MutableObject<ILogicalExpression>(f));
+        a.getInputs().add(topOp);
 
-		return new Pair<ILogicalOperator, LogicalVariable>(a, assignedVar);
+        return new Pair<ILogicalOperator, LogicalVariable>(a, assignedVar);
 
-	}
+    }
 
-	private static boolean expressionNeedsNoNesting(Expression expr) {
-		Kind k = expr.getKind();
-		return k == Kind.LITERAL_EXPRESSION
-				|| k == Kind.LIST_CONSTRUCTOR_EXPRESSION
-				|| k == Kind.RECORD_CONSTRUCTOR_EXPRESSION
-				|| k == Kind.VARIABLE_EXPRESSION || k == Kind.CALL_EXPRESSION
-				|| k == Kind.OP_EXPRESSION
-				|| k == Kind.FIELD_ACCESSOR_EXPRESSION
-				|| k == Kind.INDEX_ACCESSOR_EXPRESSION
-				|| k == Kind.UNARY_EXPRESSION;
-	}
+    private static boolean expressionNeedsNoNesting(Expression expr) {
+        Kind k = expr.getKind();
+        return k == Kind.LITERAL_EXPRESSION || k == Kind.LIST_CONSTRUCTOR_EXPRESSION
+                || k == Kind.RECORD_CONSTRUCTOR_EXPRESSION || k == Kind.VARIABLE_EXPRESSION
+                || k == Kind.CALL_EXPRESSION || k == Kind.OP_EXPRESSION || k == Kind.FIELD_ACCESSOR_EXPRESSION
+                || k == Kind.INDEX_ACCESSOR_EXPRESSION || k == Kind.UNARY_EXPRESSION;
+    }
 
-	private <T> ArrayList<T> mkSingletonArrayList(T item) {
-		ArrayList<T> array = new ArrayList<T>(1);
-		array.add(item);
-		return array;
-	}
+    private <T> ArrayList<T> mkSingletonArrayList(T item) {
+        ArrayList<T> array = new ArrayList<T>(1);
+        array.add(item);
+        return array;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitTypeDecl(TypeDecl td,
-			Mutable<ILogicalOperator> arg) throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitTypeDecl(TypeDecl td, Mutable<ILogicalOperator> arg)
+            throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitRecordTypeDefiniton(
-			RecordTypeDefinition tre, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitRecordTypeDefiniton(RecordTypeDefinition tre,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitTypeReferenceExpression(
-			TypeReferenceExpression tre, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitTypeReferenceExpression(TypeReferenceExpression tre,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitNodegroupDecl(
-			NodegroupDecl ngd, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitNodegroupDecl(NodegroupDecl ngd, Mutable<ILogicalOperator> arg)
+            throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitLoadFromFileStatement(
-			LoadFromFileStatement stmtLoad, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitLoadFromFileStatement(LoadFromFileStatement stmtLoad,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitWriteFromQueryResultStatement(
-			WriteFromQueryResultStatement stmtLoad,
-			Mutable<ILogicalOperator> arg) throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitWriteFromQueryResultStatement(
+            WriteFromQueryResultStatement stmtLoad, Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitDropStatement(
-			DropStatement del, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitDropStatement(DropStatement del, Mutable<ILogicalOperator> arg)
+            throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitControlFeedStatement(
-			ControlFeedStatement del, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitControlFeedStatement(ControlFeedStatement del,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitCreateIndexStatement(
-			CreateIndexStatement cis, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitCreateIndexStatement(CreateIndexStatement cis,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitOrderedListTypeDefiniton(
-			OrderedListTypeDefinition olte, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitOrderedListTypeDefiniton(OrderedListTypeDefinition olte,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitUnorderedListTypeDefiniton(
-			UnorderedListTypeDefinition ulte, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitUnorderedListTypeDefiniton(UnorderedListTypeDefinition ulte,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	private ILogicalExpression makeUnnestExpression(ILogicalExpression expr) {
-		switch (expr.getExpressionTag()) {
-		case VARIABLE: {
-			return new UnnestingFunctionCallExpression(
-					FunctionUtils
-							.getFunctionInfo(AsterixBuiltinFunctions.SCAN_COLLECTION),
-					new MutableObject<ILogicalExpression>(expr));
-		}
-		case FUNCTION_CALL: {
-			AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expr;
-			if (fce.getKind() == FunctionKind.UNNEST) {
-				return expr;
-			} else {
-				return new UnnestingFunctionCallExpression(
-						FunctionUtils
-								.getFunctionInfo(AsterixBuiltinFunctions.SCAN_COLLECTION),
-						new MutableObject<ILogicalExpression>(expr));
-			}
-		}
-		default: {
-			return expr;
-		}
-		}
-	}
+    private ILogicalExpression makeUnnestExpression(ILogicalExpression expr) {
+        switch (expr.getExpressionTag()) {
+            case VARIABLE: {
+                return new UnnestingFunctionCallExpression(
+                        FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.SCAN_COLLECTION),
+                        new MutableObject<ILogicalExpression>(expr));
+            }
+            case FUNCTION_CALL: {
+                AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expr;
+                if (fce.getKind() == FunctionKind.UNNEST) {
+                    return expr;
+                } else {
+                    return new UnnestingFunctionCallExpression(
+                            FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.SCAN_COLLECTION),
+                            new MutableObject<ILogicalExpression>(expr));
+                }
+            }
+            default: {
+                return expr;
+            }
+        }
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitInsertStatement(
-			InsertStatement insert, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitInsertStatement(InsertStatement insert,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitDeleteStatement(
-			DeleteStatement del, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitDeleteStatement(DeleteStatement del,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitUpdateStatement(
-			UpdateStatement update, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitUpdateStatement(UpdateStatement update,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitUpdateClause(
-			UpdateClause del, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitUpdateClause(UpdateClause del, Mutable<ILogicalOperator> arg)
+            throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitDataverseDecl(
-			DataverseDecl dv, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitDataverseDecl(DataverseDecl dv, Mutable<ILogicalOperator> arg)
+            throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitDatasetDecl(
-			DatasetDecl dd, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitDatasetDecl(DatasetDecl dd, Mutable<ILogicalOperator> arg)
+            throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitSetStatement(
-			SetStatement ss, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitSetStatement(SetStatement ss, Mutable<ILogicalOperator> arg)
+            throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitWriteStatement(
-			WriteStatement ws, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitWriteStatement(WriteStatement ws, Mutable<ILogicalOperator> arg)
+            throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitLoadFromQueryResultStatement(
-			WriteFromQueryResultStatement stmtLoad,
-			Mutable<ILogicalOperator> arg) throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitLoadFromQueryResultStatement(
+            WriteFromQueryResultStatement stmtLoad, Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitCreateDataverseStatement(
-			CreateDataverseStatement del, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitCreateDataverseStatement(CreateDataverseStatement del,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitIndexDropStatement(
-			IndexDropStatement del, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitIndexDropStatement(IndexDropStatement del,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitNodeGroupDropStatement(
-			NodeGroupDropStatement del, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitNodeGroupDropStatement(NodeGroupDropStatement del,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitDataverseDropStatement(
-			DataverseDropStatement del, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitDataverseDropStatement(DataverseDropStatement del,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitTypeDropStatement(
-			TypeDropStatement del, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitTypeDropStatement(TypeDropStatement del,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visit(
-			CreateFunctionStatement cfs, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visit(CreateFunctionStatement cfs, Mutable<ILogicalOperator> arg)
+            throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitFunctionDropStatement(
-			FunctionDropStatement del, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitFunctionDropStatement(FunctionDropStatement del,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 
-	@Override
-	public Pair<ILogicalOperator, LogicalVariable> visitBeginFeedStatement(
-			BeginFeedStatement bf, Mutable<ILogicalOperator> arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-		return null;
-	}
+    @Override
+    public Pair<ILogicalOperator, LogicalVariable> visitBeginFeedStatement(BeginFeedStatement bf,
+            Mutable<ILogicalOperator> arg) throws AsterixException {
+        // TODO Auto-generated method stub
+        return null;
+    }
 }
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 4fc1fc8..a765a35 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
@@ -237,7 +237,7 @@
 		}
 		if (!compiledDeclarations.isConnectedToDataverse())
 			compiledDeclarations.connectToDataverse(compiledDeclarations
-					.getDataverseName());
+					.getDefaultDataverseName());
 		IDataFormat format = compiledDeclarations.getFormat();
 		if (format == null) {
 			throw new AlgebricksException("Data format has not been set.");
@@ -533,7 +533,7 @@
 		}
 
 		FunctionIdentifier fi = new FunctionIdentifier(
-				AlgebricksBuiltinFunctions.ALGEBRICKS_NS, fid.getFunctionName());
+				AlgebricksBuiltinFunctions.ALGEBRICKS_NS, fid.getName());
 		AsterixFunctionInfo afi = AsterixBuiltinFunctions.lookupFunction(fi);
 		FunctionIdentifier builtinAquafi = afi == null ? null : afi
 				.getFunctionIdentifier();
@@ -542,7 +542,7 @@
 			fi = builtinAquafi;
 		} else {
 			fi = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-					fid.getFunctionName());
+					fid.getName());
 			FunctionIdentifier builtinAsterixFi = AsterixBuiltinFunctions
 					.getBuiltinFunctionIdentifier(fi);
 			if (builtinAsterixFi != null) {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/DmlTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/DmlTranslator.java
index c8b1079..13bef32 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/DmlTranslator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/DmlTranslator.java
@@ -31,6 +31,7 @@
 import edu.uci.ics.asterix.aql.literal.StringLiteral;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.config.DatasetConfig.IndexType;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.IDatasetDetails;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataManager;
@@ -57,7 +58,7 @@
         this.aqlStatements = aqlStatements;
     }
 
-    public void translate() throws AlgebricksException, RemoteException, ACIDException, MetadataException {
+    public void translate() throws AsterixException, RemoteException, ACIDException, MetadataException {
         compiledDeclarations = compileMetadata(mdTxnCtx, aqlStatements, true);
         compiledDmlStatements = compileDmlStatements();
     }
@@ -70,27 +71,29 @@
         return compiledDmlStatements;
     }
 
-    private List<ICompiledDmlStatement> compileDmlStatements() throws AlgebricksException, MetadataException {
+    private List<ICompiledDmlStatement> compileDmlStatements() throws AsterixException, MetadataException {
         List<ICompiledDmlStatement> dmlStatements = new ArrayList<ICompiledDmlStatement>();
         for (Statement stmt : aqlStatements) {
             validateOperation(compiledDeclarations, stmt);
             switch (stmt.getKind()) {
                 case LOAD_FROM_FILE: {
                     LoadFromFileStatement loadStmt = (LoadFromFileStatement) stmt;
-                    CompiledLoadFromFileStatement cls = new CompiledLoadFromFileStatement(loadStmt.getDatasetName()
-                            .getValue(), loadStmt.getAdapter(), loadStmt.getProperties(),
+                    String dataverseName = loadStmt.getDataverseName() == null ? compiledDeclarations
+                            .getDefaultDataverseName() : loadStmt.getDataverseName().getValue();
+                    CompiledLoadFromFileStatement cls = new CompiledLoadFromFileStatement(dataverseName, loadStmt
+                            .getDatasetName().getValue(), loadStmt.getAdapter(), loadStmt.getProperties(),
                             loadStmt.dataIsAlreadySorted());
                     dmlStatements.add(cls);
                     // Also load the dataset's secondary indexes.
-                    List<Index> datasetIndexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx,
-                            compiledDeclarations.getDataverseName(), loadStmt.getDatasetName().getValue());
+                    List<Index> datasetIndexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dataverseName,
+                            loadStmt.getDatasetName().getValue());
                     for (Index index : datasetIndexes) {
                         if (!index.isSecondaryIndex()) {
                             continue;
                         }
                         // Create CompiledCreateIndexStatement from metadata entity 'index'.
                         CompiledCreateIndexStatement cis = new CompiledCreateIndexStatement(index.getIndexName(),
-                                index.getDatasetName(), index.getKeyFieldNames(), index.getGramLength(),
+                                dataverseName, index.getDatasetName(), index.getKeyFieldNames(), index.getGramLength(),
                                 index.getIndexType());
                         dmlStatements.add(cis);
                     }
@@ -98,8 +101,10 @@
                 }
                 case WRITE_FROM_QUERY_RESULT: {
                     WriteFromQueryResultStatement st1 = (WriteFromQueryResultStatement) stmt;
-                    CompiledWriteFromQueryResultStatement clfrqs = new CompiledWriteFromQueryResultStatement(st1
-                            .getDatasetName().getValue(), st1.getQuery(), st1.getVarCounter());
+                    String dataverseName = st1.getDataverseName() == null ? compiledDeclarations.getDefaultDataverseName()
+                            : st1.getDataverseName().getValue();
+                    CompiledWriteFromQueryResultStatement clfrqs = new CompiledWriteFromQueryResultStatement(
+                            dataverseName, st1.getDatasetName().getValue(), st1.getQuery(), st1.getVarCounter());
                     dmlStatements.add(clfrqs);
                     break;
                 }
@@ -112,34 +117,47 @@
                     // 1. There may be more secondary indexes to load, which were possibly created in an earlier session.
                     // 2. If the create index stmt came before the load stmt, then we would first create an empty index only to load it again later. 
                     // This may cause problems because the index would be considered loaded (even though it was loaded empty). 
+                    String loadDatasetStmtDataverse = null;
+                    String ciStmtDataverse = null;
                     for (Statement s : aqlStatements) {
                         if (s.getKind() != Kind.LOAD_FROM_FILE) {
                             continue;
                         }
                         LoadFromFileStatement loadStmt = (LoadFromFileStatement) s;
-                        if (loadStmt.getDatasetName().equals(cis.getDatasetName())) {
+                        loadDatasetStmtDataverse = loadStmt.getDataverseName() == null ? compiledDeclarations
+                                .getDefaultDataverseName() : loadStmt.getDataverseName().getValue();
+                        ciStmtDataverse = loadStmt.getDataverseName() == null ? compiledDeclarations.getDefaultDataverseName()
+                                : loadStmt.getDataverseName().getValue();
+
+                        if (loadStmt.getDatasetName().equals(cis.getDatasetName())
+                                && loadDatasetStmtDataverse.equals(ciStmtDataverse)) {
                             cis.setNeedToCreate(false);
                         }
                     }
                     if (cis.getNeedToCreate()) {
                         CompiledCreateIndexStatement ccis = new CompiledCreateIndexStatement(cis.getIndexName()
-                                .getValue(), cis.getDatasetName().getValue(), cis.getFieldExprs(), cis.getGramLength(),
-                                cis.getIndexType());
+                                .getValue(), ciStmtDataverse, cis.getDatasetName().getValue(), cis.getFieldExprs(),
+                                cis.getGramLength(), cis.getIndexType());
                         dmlStatements.add(ccis);
                     }
                     break;
                 }
                 case INSERT: {
                     InsertStatement is = (InsertStatement) stmt;
-                    CompiledInsertStatement clfrqs = new CompiledInsertStatement(is.getDatasetName().getValue(),
-                            is.getQuery(), is.getVarCounter());
+                    String dataverseName = is.getDataverseName() == null ? compiledDeclarations.getDefaultDataverseName() : is
+                            .getDataverseName().getValue();
+                    CompiledInsertStatement clfrqs = new CompiledInsertStatement(dataverseName, is.getDatasetName()
+                            .getValue(), is.getQuery(), is.getVarCounter());
                     dmlStatements.add(clfrqs);
                     break;
                 }
                 case DELETE: {
                     DeleteStatement ds = (DeleteStatement) stmt;
-                    CompiledDeleteStatement clfrqs = new CompiledDeleteStatement(ds.getVariableExpr(),
-                            ds.getDatasetName(), ds.getCondition(), ds.getDieClause(), ds.getVarCounter(),
+                    String dataverseName = ds.getDataverseName() == null ? compiledDeclarations.getDefaultDataverseName() : ds
+                            .getDataverseName().getValue();
+
+                    CompiledDeleteStatement clfrqs = new CompiledDeleteStatement(ds.getVariableExpr(), dataverseName,
+                            ds.getDatasetName().getValue(), ds.getCondition(), ds.getDieClause(), ds.getVarCounter(),
                             compiledDeclarations);
                     dmlStatements.add(clfrqs);
                     break;
@@ -147,16 +165,15 @@
 
                 case BEGIN_FEED: {
                     BeginFeedStatement bfs = (BeginFeedStatement) stmt;
-                    CompiledBeginFeedStatement cbfs = new CompiledBeginFeedStatement(bfs.getDatasetName(),
-                            bfs.getQuery(), bfs.getVarCounter());
+                    String dataverseName = bfs.getDataverseName() == null ? compiledDeclarations.getDefaultDataverseName()
+                            : bfs.getDataverseName().getValue();
+
+                    CompiledBeginFeedStatement cbfs = new CompiledBeginFeedStatement(dataverseName, bfs
+                            .getDatasetName().getValue(), bfs.getQuery(), bfs.getVarCounter());
                     dmlStatements.add(cbfs);
                     Dataset dataset;
-                    try {
-                        dataset = MetadataManager.INSTANCE.getDataset(mdTxnCtx,
-                                compiledDeclarations.getDataverseName(), bfs.getDatasetName().getValue());
-                    } catch (MetadataException me) {
-                        throw new AlgebricksException(me);
-                    }
+                    dataset = MetadataManager.INSTANCE.getDataset(mdTxnCtx, compiledDeclarations.getDefaultDataverseName(),
+                            bfs.getDatasetName().getValue());
                     IDatasetDetails datasetDetails = dataset.getDatasetDetails();
                     if (datasetDetails.getDatasetType() != DatasetType.FEED) {
                         throw new IllegalArgumentException("Dataset " + bfs.getDatasetName().getValue()
@@ -169,8 +186,9 @@
 
                 case CONTROL_FEED: {
                     ControlFeedStatement cfs = (ControlFeedStatement) stmt;
-                    CompiledControlFeedStatement clcfs = new CompiledControlFeedStatement(cfs.getOperationType(),
-                            cfs.getDatasetName(), cfs.getAlterAdapterConfParams());
+                    CompiledControlFeedStatement clcfs = new CompiledControlFeedStatement(cfs.getOperationType(), cfs
+                            .getDataverseName().getValue(), cfs.getDatasetName().getValue(),
+                            cfs.getAlterAdapterConfParams());
                     dmlStatements.add(clcfs);
                     break;
 
@@ -183,10 +201,15 @@
     public static interface ICompiledDmlStatement {
 
         public abstract Kind getKind();
+
+        public String getDataverseName();
+
+        public String getDatasetName();
     }
 
     public static class CompiledCreateIndexStatement implements ICompiledDmlStatement {
         private final String indexName;
+        private final String dataverseName;
         private final String datasetName;
         private final List<String> keyFields;
         private final IndexType indexType;
@@ -194,9 +217,10 @@
         // Specific to NGram index.
         private final int gramLength;
 
-        public CompiledCreateIndexStatement(String indexName, String datasetName, List<String> keyFields,
-                int gramLength, IndexType indexType) {
+        public CompiledCreateIndexStatement(String indexName, String dataverseName, String datasetName,
+                List<String> keyFields, int gramLength, IndexType indexType) {
             this.indexName = indexName;
+            this.dataverseName = dataverseName;
             this.datasetName = datasetName;
             this.keyFields = keyFields;
             this.gramLength = gramLength;
@@ -207,6 +231,10 @@
             return datasetName;
         }
 
+        public String getDataverseName() {
+            return dataverseName;
+        }
+
         public String getIndexName() {
             return indexName;
         }
@@ -230,19 +258,25 @@
     }
 
     public static class CompiledLoadFromFileStatement implements ICompiledDmlStatement {
+        private String dataverseName;
         private String datasetName;
         private boolean alreadySorted;
         private String adapter;
         private Map<String, String> properties;
 
-        public CompiledLoadFromFileStatement(String datasetName, String adapter, Map<String, String> properties,
-                boolean alreadySorted) {
+        public CompiledLoadFromFileStatement(String dataverseName, String datasetName, String adapter,
+                Map<String, String> properties, boolean alreadySorted) {
+            this.dataverseName = dataverseName;
             this.datasetName = datasetName;
             this.alreadySorted = alreadySorted;
             this.adapter = adapter;
             this.properties = properties;
         }
 
+        public String getDataverseName() {
+            return dataverseName;
+        }
+
         public String getDatasetName() {
             return datasetName;
         }
@@ -267,20 +301,29 @@
 
     public static class CompiledWriteFromQueryResultStatement implements ICompiledDmlStatement {
 
+        private String dataverseName;
         private String datasetName;
         private Query query;
         private int varCounter;
 
-        public CompiledWriteFromQueryResultStatement(String datasetName, Query query, int varCounter) {
+        public CompiledWriteFromQueryResultStatement(String dataverseName, String datasetName, Query query,
+                int varCounter) {
+            this.dataverseName = dataverseName;
             this.datasetName = datasetName;
             this.query = query;
             this.varCounter = varCounter;
         }
 
+        @Override
         public String getDatasetName() {
             return datasetName;
         }
 
+        @Override
+        public String getDataverseName() {
+            return dataverseName;
+        }
+
         public int getVarCounter() {
             return varCounter;
         }
@@ -297,16 +340,22 @@
     }
 
     public static class CompiledInsertStatement implements ICompiledDmlStatement {
-        private String datasetName;
-        private Query query;
-        private int varCounter;
+        private final String dataverseName;
+        private final String datasetName;
+        private final Query query;
+        private final int varCounter;
 
-        public CompiledInsertStatement(String datasetName, Query query, int varCounter) {
+        public CompiledInsertStatement(String dataverseName, String datasetName, Query query, int varCounter) {
+            this.dataverseName = dataverseName;
             this.datasetName = datasetName;
             this.query = query;
             this.varCounter = varCounter;
         }
 
+        public String getDataverseName() {
+            return dataverseName;
+        }
+
         public String getDatasetName() {
             return datasetName;
         }
@@ -326,17 +375,25 @@
     }
 
     public static class CompiledBeginFeedStatement implements ICompiledDmlStatement {
-        private Identifier datasetName;
+        private String dataverseName;
+        private String datasetName;
         private Query query;
         private int varCounter;
 
-        public CompiledBeginFeedStatement(Identifier datasetName, Query query, int varCounter) {
+        public CompiledBeginFeedStatement(String dataverseName, String datasetName, Query query, int varCounter) {
+            this.dataverseName = dataverseName;
             this.datasetName = datasetName;
             this.query = query;
             this.varCounter = varCounter;
         }
 
-        public Identifier getDatasetName() {
+        @Override
+        public String getDataverseName() {
+            return dataverseName;
+        }
+
+        @Override
+        public String getDatasetName() {
             return datasetName;
         }
 
@@ -359,20 +416,28 @@
     }
 
     public static class CompiledControlFeedStatement implements ICompiledDmlStatement {
-        private Identifier datasetName;
+        private String dataverseName;
+        private String datasetName;
         private OperationType operationType;
         private Query query;
         private int varCounter;
         private Map<String, String> alteredParams;
 
-        public CompiledControlFeedStatement(OperationType operationType, Identifier datasetName,
+        public CompiledControlFeedStatement(OperationType operationType, String dataverseName, String datasetName,
                 Map<String, String> alteredParams) {
+            this.dataverseName = dataverseName;
             this.datasetName = datasetName;
             this.operationType = operationType;
             this.alteredParams = alteredParams;
         }
 
-        public Identifier getDatasetName() {
+        @Override
+        public String getDataverseName() {
+            return dataverseName;
+        }
+
+        @Override
+        public String getDatasetName() {
             return datasetName;
         }
 
@@ -404,28 +469,33 @@
 
     public static class CompiledDeleteStatement implements ICompiledDmlStatement {
         private VariableExpr var;
-        private Identifier dataset;
+        private String dataverseName;
+        private String datasetName;
         private Expression condition;
         private Clause dieClause;
         private int varCounter;
         private AqlCompiledMetadataDeclarations compiledDeclarations;
 
-        public CompiledDeleteStatement(VariableExpr var, Identifier dataset, Expression condition, Clause dieClause,
-                int varCounter, AqlCompiledMetadataDeclarations compiledDeclarations) {
+        public CompiledDeleteStatement(VariableExpr var, String dataverseName, String datasetName,
+                Expression condition, Clause dieClause, int varCounter,
+                AqlCompiledMetadataDeclarations compiledDeclarations) {
             this.var = var;
-            this.dataset = dataset;
+            this.dataverseName = dataverseName;
+            this.datasetName = datasetName;
             this.condition = condition;
             this.dieClause = dieClause;
             this.varCounter = varCounter;
             this.compiledDeclarations = compiledDeclarations;
         }
 
-        public Identifier getDataset() {
-            return dataset;
+        @Override
+        public String getDatasetName() {
+            return datasetName;
         }
 
-        public String getDatasetName() {
-            return dataset.getValue();
+        @Override
+        public String getDataverseName() {
+            return dataverseName;
         }
 
         public int getVarCounter() {
@@ -441,7 +511,6 @@
         }
 
         public Query getQuery() throws AlgebricksException {
-            String datasetName = dataset.getValue();
 
             List<Expression> arguments = new ArrayList<Expression>();
             LiteralExpr argumentLiteral = new LiteralExpr(new StringLiteral(datasetName));
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/MetadataDeclTranslator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/MetadataDeclTranslator.java
index 77b8a04..1bf3365 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/MetadataDeclTranslator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/MetadataDeclTranslator.java
@@ -16,6 +16,7 @@
 import edu.uci.ics.asterix.common.annotations.IRecordFieldDataGen;
 import edu.uci.ics.asterix.common.annotations.RecordDataGenAnnotation;
 import edu.uci.ics.asterix.common.annotations.TypeDataGen;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
@@ -30,22 +31,21 @@
 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.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.data.IAWriterFactory;
 import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 
 public final class MetadataDeclTranslator {
     private final MetadataTransactionContext mdTxnCtx;
-    private final String dataverseName;
+    private final String defaultDataverse;
     private final List<TypeDecl> typeDeclarations;
     private final FileSplit outputFile;
     private final Map<String, String> config;
     private final IAWriterFactory writerFactory;
 
-    public MetadataDeclTranslator(MetadataTransactionContext mdTxnCtx, String dataverseName, FileSplit outputFile,
+    public MetadataDeclTranslator(MetadataTransactionContext mdTxnCtx, String defaultDataverse, FileSplit outputFile,
             IAWriterFactory writerFactory, Map<String, String> config, List<TypeDecl> typeDeclarations) {
         this.mdTxnCtx = mdTxnCtx;
-        this.dataverseName = dataverseName;
+        this.defaultDataverse = defaultDataverse;
         this.outputFile = outputFile;
         this.writerFactory = writerFactory;
         this.config = config;
@@ -53,7 +53,7 @@
     }
 
     // TODO: Should this not throw an AsterixException?
-    public AqlCompiledMetadataDeclarations computeMetadataDeclarations(boolean online) throws AlgebricksException,
+    public AqlCompiledMetadataDeclarations computeMetadataDeclarations(boolean online) throws AsterixException,
             MetadataException {
         Map<String, TypeDataGen> typeDataGenMap = new HashMap<String, TypeDataGen>();
         for (TypeDecl td : typeDeclarations) {
@@ -64,11 +64,12 @@
         }
         Map<String, IAType> typeMap = computeTypes();
         Map<String, String[]> stores = AsterixProperties.INSTANCE.getStores();
-        return new AqlCompiledMetadataDeclarations(mdTxnCtx, dataverseName, outputFile, config, stores, typeMap,
-                typeDataGenMap, writerFactory, online);
+        AqlCompiledMetadataDeclarations compiledDeclarations = new AqlCompiledMetadataDeclarations(mdTxnCtx,
+                defaultDataverse, outputFile, config, stores, typeMap, typeDataGenMap, writerFactory, online);
+        return compiledDeclarations;
     }
 
-    private Map<String, IAType> computeTypes() throws AlgebricksException, MetadataException {
+    private Map<String, IAType> computeTypes() throws AsterixException, MetadataException {
         Map<String, IAType> typeMap = new HashMap<String, IAType>();
         Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes = new HashMap<String, Map<ARecordType, List<Integer>>>();
         Map<String, List<AbstractCollectionType>> incompleteItemTypes = new HashMap<String, List<AbstractCollectionType>>();
@@ -82,12 +83,12 @@
     private void secondPass(Map<String, IAType> typeMap,
             Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
             Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AlgebricksException, MetadataException {
+            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AsterixException, MetadataException {
         // solve remaining top level references
         for (String trefName : incompleteTopLevelTypeReferences.keySet()) {
             IAType t = typeMap.get(trefName);
             if (t == null) {
-                throw new AlgebricksException("Could not resolve type " + trefName);
+                throw new AsterixException("Could not resolve type " + trefName);
             }
             for (String tname : incompleteTopLevelTypeReferences.get(trefName)) {
                 typeMap.put(tname, t);
@@ -98,9 +99,9 @@
             IAType t = typeMap.get(trefName);
             if (t == null) {
                 // Try to get type from the metadata manager.
-                Datatype metadataDataType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName, trefName);
+                Datatype metadataDataType = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, defaultDataverse, trefName);
                 if (metadataDataType == null) {
-                    throw new AlgebricksException("Could not resolve type " + trefName);
+                    throw new AsterixException("Could not resolve type " + trefName);
                 }
                 t = metadataDataType.getDatatype();
                 typeMap.put(trefName, t);
@@ -123,7 +124,7 @@
         for (String trefName : incompleteItemTypes.keySet()) {
             IAType t = typeMap.get(trefName);
             if (t == null) {
-                throw new AlgebricksException("Could not resolve type " + trefName);
+                throw new AsterixException("Could not resolve type " + trefName);
             }
             for (AbstractCollectionType act : incompleteItemTypes.get(trefName)) {
                 act.setItemType(t);
@@ -134,12 +135,12 @@
     private void firstPass(Map<String, IAType> typeMap,
             Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
             Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AlgebricksException {
+            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AsterixException {
         for (TypeDecl td : typeDeclarations) {
             TypeExpression texpr = td.getTypeDef();
             String tdname = td.getIdent().getValue();
             if (AsterixBuiltinTypeMap.getBuiltinTypes().get(tdname) != null) {
-                throw new AlgebricksException("Cannot redefine builtin type " + tdname + " .");
+                throw new AsterixException("Cannot redefine builtin type " + tdname + " .");
             }
             switch (texpr.getTypeKind()) {
                 case TYPEREFERENCE: {
diff --git a/asterix-algebra/src/main/javacc/AQLPlus.jj b/asterix-algebra/src/main/javacc/AQLPlus.jj
index 3422652..1a7f66c 100644
--- a/asterix-algebra/src/main/javacc/AQLPlus.jj
+++ b/asterix-algebra/src/main/javacc/AQLPlus.jj
@@ -187,7 +187,7 @@
      <DATASET> <IDENTIFIER> { datasetName = new Identifier(token.image); }
      <LEFTPAREN> query = Query() <RIGHTPAREN>
      {
-        stmt = new WriteFromQueryResultStatement(datasetName, query, getVarCounter());
+        stmt = new WriteFromQueryResultStatement(null, datasetName, query, getVarCounter());
      } ))  
         
     ";"
@@ -272,7 +272,7 @@
         
   ";"
   {
-     return new LoadFromFileStatement(datasetName, adapter, properties, alreadySorted);
+     return new LoadFromFileStatement(null, datasetName, adapter, properties, alreadySorted);
   }   
 }
 
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThread.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThread.java
index dee3ee0..0427729 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThread.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/aqlj/server/APIClientThread.java
@@ -111,10 +111,7 @@
         }
 
         // the "write output..." clause is inserted into incoming AQL statements
-        binaryOutputClause = "write output to "
-                + outputNodeName
-                + ":\""
-                + outputFilePath
+        binaryOutputClause = "write output to " + outputNodeName + ":\"" + outputFilePath
                 + "\" using \"edu.uci.ics.hyracks.algebricks.runtime.writers.SerializedDataWriterFactory\";";
 
     }
@@ -238,7 +235,7 @@
             }
 
             Pair<AqlCompiledMetadataDeclarations, JobSpecification> metadataAndSpec = APIFramework.compileQuery(
-                    dataverse, q, parser.getVarCounter(), null, metadata, pc, out, DisplayFormat.TEXT, null);
+                    dataverse, q, parser.getVarCounter(), null, metadata, pc, out, DisplayFormat.TEXT, null, null);
             JobSpecification spec = metadataAndSpec.second;
             metadata = metadataAndSpec.first;
             APIFramework.executeJobArray(hcc, new JobSpecification[] { spec }, out, DisplayFormat.TEXT);
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 57b2ff0..699be9a 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
@@ -30,6 +30,7 @@
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
 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;
@@ -144,8 +145,7 @@
     }
 
     public static String compileDdlStatements(IHyracksClientConnection hcc, Query query, PrintWriter out,
-            SessionConfig pc, DisplayFormat pdf) throws AsterixException, AlgebricksException, JSONException,
-            RemoteException, ACIDException {
+            SessionConfig pc, DisplayFormat pdf) throws Exception {
         // Begin a transaction against the metadata.
         // Lock the metadata in X mode to protect against other DDL and DML.
         MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
@@ -154,11 +154,10 @@
             DdlTranslator ddlt = new DdlTranslator(mdTxnCtx, query.getPrologDeclList(), out, pc, pdf);
             ddlt.translate(hcc, false);
             MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
-            return ddlt.getCompiledDeclarations().getDataverseName();
+            return ddlt.getCompiledDeclarations().getDefaultDataverseName();
         } catch (Exception e) {
             MetadataManager.INSTANCE.abortTransaction(mdTxnCtx);
-            e.printStackTrace();
-            throw new AlgebricksException(e);
+            throw e;
         }
     }
 
@@ -186,49 +185,50 @@
             AqlCompiledMetadataDeclarations metadata = dmlt.getCompiledDeclarations();
 
             if (!metadata.isConnectedToDataverse())
-                metadata.connectToDataverse(metadata.getDataverseName());
+                metadata.connectToDataverse(metadata.getDefaultDataverseName());
 
             for (ICompiledDmlStatement stmt : dmlt.getCompiledDmlStatements()) {
                 switch (stmt.getKind()) {
                     case LOAD_FROM_FILE: {
                         CompiledLoadFromFileStatement stmtLoad = (CompiledLoadFromFileStatement) stmt;
-                        dmlJobs.add(DatasetOperations.createLoadDatasetJobSpec(stmtLoad, metadata));
+                        IDataFormat format = getDataFormat(mdTxnCtx, dataverseName);
+                        dmlJobs.add(DatasetOperations.createLoadDatasetJobSpec(stmtLoad, metadata, format));
                         break;
                     }
                     case WRITE_FROM_QUERY_RESULT: {
-                        CompiledWriteFromQueryResultStatement stmtLoad = (CompiledWriteFromQueryResultStatement) stmt;
+                        CompiledWriteFromQueryResultStatement writeFromQueryStmt = (CompiledWriteFromQueryResultStatement) stmt;
                         SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
                                 pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
                                 pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
                         sc2.setGenerateJobSpec(true);
                         Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, stmtLoad.getQuery(), stmtLoad.getVarCounter(),
-                                stmtLoad.getDatasetName(), metadata, sc2, out, pdf,
-                                Statement.Kind.WRITE_FROM_QUERY_RESULT);
+                                dataverseName, writeFromQueryStmt.getQuery(), writeFromQueryStmt.getVarCounter(),
+                                writeFromQueryStmt.getDatasetName(), metadata, sc2, out, pdf,
+                                Statement.Kind.WRITE_FROM_QUERY_RESULT, writeFromQueryStmt);
                         dmlJobs.add(new Job(mj.second));
                         break;
                     }
                     case INSERT: {
-                        CompiledInsertStatement stmtLoad = (CompiledInsertStatement) stmt;
+                        CompiledInsertStatement stmtInsert = (CompiledInsertStatement) stmt;
                         SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
                                 pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
                                 pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
                         sc2.setGenerateJobSpec(true);
                         Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, stmtLoad.getQuery(), stmtLoad.getVarCounter(),
-                                stmtLoad.getDatasetName(), metadata, sc2, out, pdf, Statement.Kind.INSERT);
+                                dataverseName, stmtInsert.getQuery(), stmtInsert.getVarCounter(),
+                                stmtInsert.getDatasetName(), metadata, sc2, out, pdf, Statement.Kind.INSERT, stmtInsert);
                         dmlJobs.add(new Job(mj.second));
                         break;
                     }
                     case DELETE: {
-                        CompiledDeleteStatement stmtLoad = (CompiledDeleteStatement) stmt;
+                        CompiledDeleteStatement stmtDelete = (CompiledDeleteStatement) stmt;
                         SessionConfig sc2 = new SessionConfig(pc.getPort(), true, pc.isPrintExprParam(),
                                 pc.isPrintRewrittenExprParam(), pc.isPrintLogicalPlanParam(),
                                 pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
                         sc2.setGenerateJobSpec(true);
                         Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, stmtLoad.getQuery(), stmtLoad.getVarCounter(),
-                                stmtLoad.getDatasetName(), metadata, sc2, out, pdf, Statement.Kind.DELETE);
+                                dataverseName, stmtDelete.getQuery(), stmtDelete.getVarCounter(),
+                                stmtDelete.getDatasetName(), metadata, sc2, out, pdf, Statement.Kind.DELETE, stmtDelete);
                         dmlJobs.add(new Job(mj.second));
                         break;
                     }
@@ -246,8 +246,8 @@
                                 pc.isPrintOptimizedLogicalPlanParam(), pc.isPrintPhysicalOpsOnly(), pc.isPrintJob());
                         sc2.setGenerateJobSpec(true);
                         Pair<AqlCompiledMetadataDeclarations, JobSpecification> mj = compileQueryInternal(mdTxnCtx,
-                                dataverseName, cbfs.getQuery(), cbfs.getVarCounter(), cbfs.getDatasetName().getValue(),
-                                metadata, sc2, out, pdf, Statement.Kind.BEGIN_FEED);
+                                dataverseName, cbfs.getQuery(), cbfs.getVarCounter(), cbfs.getDatasetName(), metadata,
+                                sc2, out, pdf, Statement.Kind.BEGIN_FEED, cbfs);
                         dmlJobs.add(new Job(mj.second));
                         break;
 
@@ -301,13 +301,13 @@
 
     public static Pair<AqlCompiledMetadataDeclarations, JobSpecification> compileQuery(String dataverseName, Query q,
             int varCounter, String outputDatasetName, AqlCompiledMetadataDeclarations metadataDecls, SessionConfig pc,
-            PrintWriter out, DisplayFormat pdf, Statement.Kind dmlKind) throws AsterixException, AlgebricksException,
-            JSONException, RemoteException, ACIDException {
+            PrintWriter out, DisplayFormat pdf, Statement.Kind dmlKind, ICompiledDmlStatement statement)
+            throws AsterixException, AlgebricksException, JSONException, RemoteException, ACIDException {
         MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
         try {
             MetadataManager.INSTANCE.lock(mdTxnCtx, LockMode.SHARED);
             Pair<AqlCompiledMetadataDeclarations, JobSpecification> result = compileQueryInternal(mdTxnCtx,
-                    dataverseName, q, varCounter, outputDatasetName, metadataDecls, pc, out, pdf, dmlKind);
+                    dataverseName, q, varCounter, outputDatasetName, metadataDecls, pc, out, pdf, dmlKind, statement);
             MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
             return result;
         } catch (AsterixException e) {
@@ -334,8 +334,8 @@
     public static Pair<AqlCompiledMetadataDeclarations, JobSpecification> compileQueryInternal(
             MetadataTransactionContext mdTxnCtx, String dataverseName, Query q, int varCounter,
             String outputDatasetName, AqlCompiledMetadataDeclarations metadataDecls, SessionConfig pc, PrintWriter out,
-            DisplayFormat pdf, Statement.Kind dmlKind) throws AsterixException, AlgebricksException, JSONException,
-            RemoteException, ACIDException {
+            DisplayFormat pdf, Statement.Kind dmlKind, ICompiledDmlStatement stmt) throws AsterixException,
+            AlgebricksException, JSONException, RemoteException, ACIDException {
 
         if (!pc.isPrintPhysicalOpsOnly() && pc.isPrintExprParam()) {
             out.println();
@@ -392,7 +392,7 @@
         }
         long txnId = TransactionIDFactory.generateTransactionId();
         AqlExpressionToPlanTranslator t = new AqlExpressionToPlanTranslator(txnId, mdTxnCtx, rw.getVarCounter(),
-                outputDatasetName, dmlKind);
+                outputDatasetName, dmlKind, dataverseName, stmt);
 
         ILogicalPlanAndMetadata planAndMetadata = t.translate(rwQ, metadataDecls);
         boolean isWriteTransaction = false;
@@ -469,38 +469,38 @@
         ICompiler compiler = compilerFactory.createCompiler(planAndMetadata.getPlan(),
                 planAndMetadata.getMetadataProvider(), t.getVarCounter());
         if (pc.isOptimize()) {
-        	compiler.optimize();        	
-        	if (pc.isPrintOptimizedLogicalPlanParam()) {
-        		if (pc.isPrintPhysicalOpsOnly()) {
-        			// For Optimizer tests.
-        			StringBuilder buffer = new StringBuilder();
-        			PlanPrettyPrinter.printPhysicalOps(planAndMetadata.getPlan(), buffer, 0);
-        			out.print(buffer);
-        		} else {
-        			switch (pdf) {
-        			case HTML: {
-        				out.println("<H1>Optimized logical plan:</H1>");
-        				out.println("<PRE>");
-        				break;
-        			}
-        			case TEXT: {
-        				out.println("----------Optimized plan ");
-        				break;
-        			}
-        			}
-        			if (q != null) {
-        				StringBuilder buffer = new StringBuilder();
-        				PlanPrettyPrinter.printPlan(planAndMetadata.getPlan(), buffer, pvisitor, 0);
-        				out.print(buffer);
-        			}
-        			switch (pdf) {
-        			case HTML: {
-        				out.println("</PRE>");
-        				break;
-        			}
-        			}
-        		}
-        	}
+            compiler.optimize();
+            if (pc.isPrintOptimizedLogicalPlanParam()) {
+                if (pc.isPrintPhysicalOpsOnly()) {
+                    // For Optimizer tests.
+                    StringBuilder buffer = new StringBuilder();
+                    PlanPrettyPrinter.printPhysicalOps(planAndMetadata.getPlan(), buffer, 0);
+                    out.print(buffer);
+                } else {
+                    switch (pdf) {
+                        case HTML: {
+                            out.println("<H1>Optimized logical plan:</H1>");
+                            out.println("<PRE>");
+                            break;
+                        }
+                        case TEXT: {
+                            out.println("----------Optimized plan ");
+                            break;
+                        }
+                    }
+                    if (q != null) {
+                        StringBuilder buffer = new StringBuilder();
+                        PlanPrettyPrinter.printPlan(planAndMetadata.getPlan(), buffer, pvisitor, 0);
+                        out.print(buffer);
+                    }
+                    switch (pdf) {
+                        case HTML: {
+                            out.println("</PRE>");
+                            break;
+                        }
+                    }
+                }
+            }
         }
 
         if (!pc.isGenerateJobSpec()) {
@@ -589,4 +589,16 @@
 
     }
 
+    private static IDataFormat getDataFormat(MetadataTransactionContext mdTxnCtx, String dataverseName)
+            throws AsterixException {
+        Dataverse dataverse = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverseName);
+        IDataFormat format;
+        try {
+            format = (IDataFormat) Class.forName(dataverse.getDataFormat()).newInstance();
+        } catch (Exception e) {
+            throw new AsterixException(e);
+        }
+        return format;
+    }
+
 }
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 cf2b54c..dbdb81b 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
@@ -5,7 +5,6 @@
 import java.io.FileReader;
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.io.StringReader;
 
 import javax.servlet.ServletContext;
 import javax.servlet.http.HttpServlet;
@@ -58,7 +57,7 @@
                     context.setAttribute(HYRACKS_CONNECTION_ATTR, hcc);
                 }
             }
-            AQLParser parser = new AQLParser(new StringReader(query));
+            AQLParser parser = new AQLParser(query);
             Query q = (Query) parser.Statement();
             SessionConfig pc = new SessionConfig(port, true, isSet(printExprParam), isSet(printRewrittenExprParam),
                     isSet(printLogicalPlanParam), isSet(printOptimizedLogicalPlanParam), false, isSet(printJob));
@@ -76,7 +75,7 @@
             }
 
             Pair<AqlCompiledMetadataDeclarations, JobSpecification> metadataAndSpec = APIFramework.compileQuery(
-                    dataverseName, q, parser.getVarCounter(), null, null, pc, out, DisplayFormat.HTML, null);
+                    dataverseName, q, parser.getVarCounter(), null, null, pc, out, DisplayFormat.HTML, null, null);
             JobSpecification spec = metadataAndSpec.second;
             GlobalConfig.ASTERIX_LOGGER.info(spec.toJSON().toString(1));
             AqlCompiledMetadataDeclarations metadata = metadataAndSpec.first;
@@ -98,20 +97,21 @@
                 out.println("</PRE>");
             }
         } catch (ParseException pe) {
-        	String message = pe.getMessage();
-        	message = message.replace("<", "&lt");
-        	message = message.replace(">", "&gt");
-        	out.println("SyntaxError:" + message);
-        	int pos = message.indexOf("line");
-        	if (pos > 0) {
-        		int columnPos = message.indexOf(",", pos + 1 + "line".length());
-        		int lineNo = Integer.parseInt(message.substring(pos + "line".length() + 1, columnPos));
-        		String line = query.split("\n")[lineNo - 1];            
-        		out.println("==> " + line);
-        	}
+            String message = pe.getMessage();
+            message = message.replace("<", "&lt");
+            message = message.replace(">", "&gt");
+            out.println("SyntaxError:" + message);
+            int pos = message.indexOf("line");
+            if (pos > 0) {
+                int columnPos = message.indexOf(",", pos + 1 + "line".length());
+                int lineNo = Integer.parseInt(message.substring(pos + "line".length() + 1, columnPos));
+                String line = query.split("\n")[lineNo - 1];
+                out.println("==> " + line);
+            }
         } catch (Exception e) {
+            e.printStackTrace();
             out.println(e.getMessage());
-       }
+        }
     }
 
     @Override
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 7ccfdef..f43dfea 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
@@ -2,9 +2,6 @@
 
 import java.io.PrintWriter;
 import java.io.Reader;
-import java.rmi.RemoteException;
-
-import org.json.JSONException;
 
 import edu.uci.ics.asterix.api.common.APIFramework;
 import edu.uci.ics.asterix.api.common.APIFramework.DisplayFormat;
@@ -17,8 +14,6 @@
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
@@ -47,7 +42,7 @@
 
     public void compile(boolean optimize, boolean printRewrittenExpressions, boolean printLogicalPlan,
             boolean printOptimizedPlan, boolean printPhysicalOpsOnly, boolean generateBinaryRuntime, boolean printJob)
-            throws AsterixException, AlgebricksException, JSONException, RemoteException, ACIDException {
+            throws Exception {
         queryJobSpec = null;
         dmlJobs = null;
 
@@ -78,7 +73,7 @@
         }
 
         Pair<AqlCompiledMetadataDeclarations, JobSpecification> metadataAndSpec = APIFramework.compileQuery(
-                dataverseName, q, parser.getVarCounter(), null, null, pc, writer, DisplayFormat.TEXT, null);
+                dataverseName, q, parser.getVarCounter(), null, null, pc, writer, DisplayFormat.TEXT, null, null);
         if (metadataAndSpec != null) {
             queryJobSpec = metadataAndSpec.second;
         }
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/DdlTranslator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/DdlTranslator.java
index c68817c..5961c79 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/DdlTranslator.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/DdlTranslator.java
@@ -49,7 +49,6 @@
 import edu.uci.ics.asterix.aql.expression.TypeExpression;
 import edu.uci.ics.asterix.aql.expression.TypeReferenceExpression;
 import edu.uci.ics.asterix.aql.expression.UnorderedListTypeDefinition;
-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.AsterixException;
@@ -62,8 +61,6 @@
 import edu.uci.ics.asterix.metadata.MetadataManager;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
-import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinArtifactMap;
-import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinArtifactMap.ARTIFACT_KIND;
 import edu.uci.ics.asterix.metadata.entities.AsterixBuiltinTypeMap;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
@@ -74,6 +71,7 @@
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.entities.InternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.om.functions.FunctionSignature;
 import edu.uci.ics.asterix.om.types.AOrderedListType;
 import edu.uci.ics.asterix.om.types.ARecordType;
 import edu.uci.ics.asterix.om.types.ATypeTag;
@@ -85,7 +83,7 @@
 import edu.uci.ics.asterix.translator.AbstractAqlTranslator;
 import edu.uci.ics.asterix.translator.DmlTranslator.CompiledCreateIndexStatement;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
 import edu.uci.ics.hyracks.api.client.IHyracksClientConnection;
 import edu.uci.ics.hyracks.api.job.JobId;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
@@ -93,1090 +91,928 @@
 
 public class DdlTranslator extends AbstractAqlTranslator {
 
-	private final MetadataTransactionContext mdTxnCtx;
-	private final List<Statement> aqlStatements;
-	private final PrintWriter out;
-	private final SessionConfig pc;
-	private final DisplayFormat pdf;
-	private AqlCompiledMetadataDeclarations compiledDeclarations;
+    private final MetadataTransactionContext mdTxnCtx;
+    private final List<Statement> aqlStatements;
+    private final PrintWriter out;
+    private final SessionConfig pc;
+    private final DisplayFormat pdf;
+    private AqlCompiledMetadataDeclarations compiledDeclarations;
 
-	private static Map<String, BuiltinType> builtinTypeMap;
+    private static Map<String, BuiltinType> builtinTypeMap;
 
-	public DdlTranslator(MetadataTransactionContext mdTxnCtx,
-			List<Statement> aqlStatements, PrintWriter out, SessionConfig pc,
-			DisplayFormat pdf) {
-		this.mdTxnCtx = mdTxnCtx;
-		this.aqlStatements = aqlStatements;
-		this.out = out;
-		this.pc = pc;
-		this.pdf = pdf;
-		builtinTypeMap = AsterixBuiltinTypeMap.getBuiltinTypes();
-	}
+    public DdlTranslator(MetadataTransactionContext mdTxnCtx, List<Statement> aqlStatements, PrintWriter out,
+            SessionConfig pc, DisplayFormat pdf) {
+        this.mdTxnCtx = mdTxnCtx;
+        this.aqlStatements = aqlStatements;
+        this.out = out;
+        this.pc = pc;
+        this.pdf = pdf;
+        builtinTypeMap = AsterixBuiltinTypeMap.getBuiltinTypes();
+    }
 
-	public void translate(IHyracksClientConnection hcc,
-			boolean disconnectFromDataverse) throws AlgebricksException {
-		try {
-			compiledDeclarations = compileMetadata(mdTxnCtx, aqlStatements,
-					true);
-			compileAndExecuteDDLstatements(hcc, mdTxnCtx,
-					disconnectFromDataverse);
-		} catch (Exception e) {
-			throw new AlgebricksException(e);
-		}
-	}
+    public void translate(IHyracksClientConnection hcc, boolean disconnectFromDataverse) throws AlgebricksException {
+        try {
+            compiledDeclarations = compileMetadata(mdTxnCtx, aqlStatements, true);
+            compileAndExecuteDDLstatements(hcc, mdTxnCtx, disconnectFromDataverse);
+        } catch (Exception e) {
+            throw new AlgebricksException(e);
+        }
+    }
 
-	private void compileAndExecuteDDLstatements(IHyracksClientConnection hcc,
-			MetadataTransactionContext mdTxnCtx, boolean disconnectFromDataverse)
-			throws Exception {
-		for (Statement stmt : aqlStatements) {
-			validateOperation(compiledDeclarations, stmt);
-			switch (stmt.getKind()) {
-			case DATAVERSE_DECL: {
-				checkForDataverseConnection(false);
-				DataverseDecl dvd = (DataverseDecl) stmt;
-				String dataverseName = dvd.getDataverseName().getValue();
-				compiledDeclarations.connectToDataverse(dataverseName);
-				break;
-			}
+    private void compileAndExecuteDDLstatements(IHyracksClientConnection hcc, MetadataTransactionContext mdTxnCtx,
+            boolean disconnectFromDataverse) throws Exception {
+        for (Statement stmt : aqlStatements) {
+            validateOperation(compiledDeclarations, stmt);
+            switch (stmt.getKind()) {
+                case DATAVERSE_DECL: {
+                    checkForDataverseConnection(false);
+                    DataverseDecl dvd = (DataverseDecl) stmt;
+                    String defaultDataverse = dvd.getDataverseName().getValue();
+                    compiledDeclarations.connectToDataverse(defaultDataverse);
+                    break;
+                }
 
-			case CREATE_DATAVERSE: {
-				checkForDataverseConnection(false);
-				CreateDataverseStatement stmtCreateDataverse = (CreateDataverseStatement) stmt;
-				String dvName = stmtCreateDataverse.getDataverseName()
-						.getValue();
-				Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx,
-						dvName);
-				if (dv != null && !stmtCreateDataverse.getIfNotExists()) {
-					throw new AlgebricksException("A dataverse with this name "
-							+ dvName + " already exists.");
-				}
-				MetadataManager.INSTANCE.addDataverse(mdTxnCtx, new Dataverse(
-						dvName, stmtCreateDataverse.getFormat()));
-				break;
-			}
+                case CREATE_DATAVERSE: {
+                    CreateDataverseStatement stmtCreateDataverse = (CreateDataverseStatement) stmt;
+                    String dvName = stmtCreateDataverse.getDataverseName().getValue();
+                    Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dvName);
+                    if (dv != null && !stmtCreateDataverse.getIfNotExists()) {
+                        throw new AlgebricksException("A dataverse with this name " + dvName + " already exists.");
+                    }
+                    MetadataManager.INSTANCE.addDataverse(mdTxnCtx,
+                            new Dataverse(dvName, stmtCreateDataverse.getFormat()));
+                    break;
+                }
 
-			case DATASET_DECL: {
-				checkForDataverseConnection(true);
-				DatasetDecl dd = (DatasetDecl) stmt;
-				String datasetName = dd.getName().getValue();
-				DatasetType dsType = dd.getDatasetType();
-				String itemTypeName = null;
-				IDatasetDetails datasetDetails = null;
-				Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx,
-						compiledDeclarations.getDataverseName(), datasetName);
-				if (ds != null) {
-					if (dd.getIfNotExists()) {
-						continue;
-					} else {
-						throw new AlgebricksException(
-								"A dataset with this name " + datasetName
-										+ " already exists.");
-					}
-				}
-				itemTypeName = dd.getItemTypeName().getValue();
-				Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-						compiledDeclarations.getDataverseName(), itemTypeName);
-				if (dt == null) {
-					throw new AlgebricksException(": type " + itemTypeName
-							+ " could not be found.");
-				}
-				switch (dd.getDatasetType()) {
-				case INTERNAL: {
-					IAType itemType = dt.getDatatype();
-					if (itemType.getTypeTag() != ATypeTag.RECORD) {
-						throw new AlgebricksException(
-								"Can only partition ARecord's.");
-					}
-					List<String> partitioningExprs = ((InternalDetailsDecl) dd
-							.getDatasetDetailsDecl()).getPartitioningExprs();
-					String ngName = ((InternalDetailsDecl) dd
-							.getDatasetDetailsDecl()).getNodegroupName()
-							.getValue();
-					datasetDetails = new InternalDatasetDetails(
-							InternalDatasetDetails.FileStructure.BTREE,
-							InternalDatasetDetails.PartitioningStrategy.HASH,
-							partitioningExprs, partitioningExprs, ngName);
-					break;
-				}
-				case EXTERNAL: {
-					String adapter = ((ExternalDetailsDecl) dd
-							.getDatasetDetailsDecl()).getAdapter();
-					Map<String, String> properties = ((ExternalDetailsDecl) dd
-							.getDatasetDetailsDecl()).getProperties();
-					datasetDetails = new ExternalDatasetDetails(adapter,
-							properties);
-					break;
-				}
-				case FEED: {
-					IAType itemType = dt.getDatatype();
-					if (itemType.getTypeTag() != ATypeTag.RECORD) {
-						throw new AlgebricksException(
-								"Can only partition ARecord's.");
-					}
-					List<String> partitioningExprs = ((FeedDetailsDecl) dd
-							.getDatasetDetailsDecl()).getPartitioningExprs();
-					String ngName = ((FeedDetailsDecl) dd
-							.getDatasetDetailsDecl()).getNodegroupName()
-							.getValue();
-					String adapter = ((FeedDetailsDecl) dd
-							.getDatasetDetailsDecl()).getAdapterClassname();
-					Map<String, String> properties = ((FeedDetailsDecl) dd
-							.getDatasetDetailsDecl()).getProperties();
-					String functionIdentifier = ((FeedDetailsDecl) dd
-							.getDatasetDetailsDecl()).getFunctionIdentifier();
-					datasetDetails = new FeedDatasetDetails(
-							InternalDatasetDetails.FileStructure.BTREE,
-							InternalDatasetDetails.PartitioningStrategy.HASH,
-							partitioningExprs, partitioningExprs, ngName,
-							adapter, properties, functionIdentifier,
-							FeedDatasetDetails.FeedState.INACTIVE.toString());
-					break;
-				}
-				}
-				MetadataManager.INSTANCE.addDataset(mdTxnCtx, new Dataset(
-						compiledDeclarations.getDataverseName(), datasetName,
-						itemTypeName, datasetDetails, dsType));
-				if (dd.getDatasetType() == DatasetType.INTERNAL
-						|| dd.getDatasetType() == DatasetType.FEED) {
-					runCreateDatasetJob(hcc, datasetName);
-				}
-				break;
-			}
+                case DATASET_DECL: {
+                    DatasetDecl dd = (DatasetDecl) stmt;
+                    String dataverseName = dd.getDataverse() == null ? compiledDeclarations.getDefaultDataverseName()
+                            : dd.getDataverse().getValue();
+                    String datasetName = dd.getName().getValue();
+                    DatasetType dsType = dd.getDatasetType();
+                    String itemTypeName = null;
+                    IDatasetDetails datasetDetails = null;
+                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+                    if (ds != null) {
+                        if (dd.getIfNotExists()) {
+                            continue;
+                        } else {
+                            throw new AlgebricksException("A dataset with this name " + datasetName
+                                    + " already exists.");
+                        }
+                    }
+                    itemTypeName = dd.getItemTypeName().getValue();
+                    Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx, dataverseName, itemTypeName);
+                    if (dt == null) {
+                        throw new AlgebricksException(": type " + itemTypeName + " could not be found.");
+                    }
+                    switch (dd.getDatasetType()) {
+                        case INTERNAL: {
+                            IAType itemType = dt.getDatatype();
+                            if (itemType.getTypeTag() != ATypeTag.RECORD) {
+                                throw new AlgebricksException("Can only partition ARecord's.");
+                            }
+                            List<String> partitioningExprs = ((InternalDetailsDecl) dd.getDatasetDetailsDecl())
+                                    .getPartitioningExprs();
+                            String ngName = ((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName()
+                                    .getValue();
+                            datasetDetails = new InternalDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
+                                    InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs,
+                                    partitioningExprs, ngName);
+                            break;
+                        }
+                        case EXTERNAL: {
+                            String adapter = ((ExternalDetailsDecl) dd.getDatasetDetailsDecl()).getAdapter();
+                            Map<String, String> properties = ((ExternalDetailsDecl) dd.getDatasetDetailsDecl())
+                                    .getProperties();
+                            datasetDetails = new ExternalDatasetDetails(adapter, properties);
+                            break;
+                        }
+                        case FEED: {
+                            IAType itemType = dt.getDatatype();
+                            if (itemType.getTypeTag() != ATypeTag.RECORD) {
+                                throw new AlgebricksException("Can only partition ARecord's.");
+                            }
+                            List<String> partitioningExprs = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
+                                    .getPartitioningExprs();
+                            String ngName = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getNodegroupName()
+                                    .getValue();
+                            String adapter = ((FeedDetailsDecl) dd.getDatasetDetailsDecl()).getAdapterClassname();
+                            Map<String, String> properties = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
+                                    .getProperties();
+                            String functionIdentifier = ((FeedDetailsDecl) dd.getDatasetDetailsDecl())
+                                    .getFunctionIdentifier();
+                            datasetDetails = new FeedDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
+                                    InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs,
+                                    partitioningExprs, ngName, adapter, properties, functionIdentifier,
+                                    FeedDatasetDetails.FeedState.INACTIVE.toString());
+                            break;
+                        }
+                    }
+                    MetadataManager.INSTANCE.addDataset(mdTxnCtx, new Dataset(dataverseName, datasetName, itemTypeName,
+                            datasetDetails, dsType));
+                    if (dd.getDatasetType() == DatasetType.INTERNAL || dd.getDatasetType() == DatasetType.FEED) {
+                        Dataverse dataverse = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverseName);
+                        runCreateDatasetJob(hcc, dataverse, datasetName);
+                    }
+                    break;
+                }
 
-			case CREATE_INDEX: {
-				checkForDataverseConnection(true);
-				CreateIndexStatement stmtCreateIndex = (CreateIndexStatement) stmt;
-				String datasetName = stmtCreateIndex.getDatasetName()
-						.getValue();
-				Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx,
-						compiledDeclarations.getDataverseName(), datasetName);
-				if (ds == null) {
-					throw new AlgebricksException(
-							"There is no dataset with this name " + datasetName);
-				}
-				String indexName = stmtCreateIndex.getIndexName().getValue();
-				Index idx = MetadataManager.INSTANCE.getIndex(mdTxnCtx,
-						compiledDeclarations.getDataverseName(), datasetName,
-						indexName);
-				if (idx != null) {
-					if (!stmtCreateIndex.getIfNotExists()) {
-						throw new AlgebricksException(
-								"An index with this name " + indexName
-										+ " already exists.");
-					} else {
-						stmtCreateIndex.setNeedToCreate(false);
-					}
-				} else {
-					MetadataManager.INSTANCE.addIndex(
-							mdTxnCtx,
-							new Index(compiledDeclarations.getDataverseName(),
-									datasetName, indexName, stmtCreateIndex
-											.getIndexType(), stmtCreateIndex
-											.getFieldExprs(), stmtCreateIndex
-											.getGramLength(), false));
-					runCreateIndexJob(hcc, stmtCreateIndex);
-				}
-				break;
-			}
-			case TYPE_DECL: {
-				checkForDataverseConnection(true);
-				TypeDecl stmtCreateType = (TypeDecl) stmt;
-				String typeName = stmtCreateType.getIdent().getValue();
-				Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-						compiledDeclarations.getDataverseName(), typeName);
-				if (dt != null) {
-					if (!stmtCreateType.getIfNotExists())
-						throw new AlgebricksException(
-								"A datatype with this name " + typeName
-										+ " already exists.");
-				} else {
-					if (builtinTypeMap.get(typeName) != null) {
-						throw new AlgebricksException(
-								"Cannot redefine builtin type " + typeName
-										+ ".");
-					} else {
-						Map<String, IAType> typeMap = computeTypes(mdTxnCtx,
-								(TypeDecl) stmt);
-						IAType type = typeMap.get(typeName);
-						MetadataManager.INSTANCE.addDatatype(
-								mdTxnCtx,
-								new Datatype(compiledDeclarations
-										.getDataverseName(), typeName, type,
-										false));
-					}
-				}
-				break;
-			}
-			case NODEGROUP_DECL: {
-				NodegroupDecl stmtCreateNodegroup = (NodegroupDecl) stmt;
-				String ngName = stmtCreateNodegroup.getNodegroupName()
-						.getValue();
-				NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx,
-						ngName);
-				if (ng != null) {
-					if (!stmtCreateNodegroup.getIfNotExists())
-						throw new AlgebricksException(
-								"A nodegroup with this name " + ngName
-										+ " already exists.");
-				} else {
-					List<Identifier> ncIdentifiers = stmtCreateNodegroup
-							.getNodeControllerNames();
-					List<String> ncNames = new ArrayList<String>(
-							ncIdentifiers.size());
-					for (Identifier id : ncIdentifiers) {
-						ncNames.add(id.getValue());
-					}
-					MetadataManager.INSTANCE.addNodegroup(mdTxnCtx,
-							new NodeGroup(ngName, ncNames));
-				}
-				break;
-			}
-			// drop statements
-			case DATAVERSE_DROP: {
-				DataverseDropStatement stmtDelete = (DataverseDropStatement) stmt;
-				String dvName = stmtDelete.getDataverseName().getValue();
-				if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(
-						ARTIFACT_KIND.DATAVERSE, dvName)) {
-					throw new AsterixException(
-							"Invalid Operation cannot drop dataverse " + dvName
-									+ " (protected by system)");
-				}
+                case CREATE_INDEX: {
+                    CreateIndexStatement stmtCreateIndex = (CreateIndexStatement) stmt;
+                    String dataverseName = stmtCreateIndex.getDataverseName() == null ? compiledDeclarations
+                            .getDefaultDataverseName() : stmtCreateIndex.getDataverseName().getValue();
+                    String datasetName = stmtCreateIndex.getDatasetName().getValue();
+                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+                    if (ds == null) {
+                        throw new AlgebricksException("There is no dataset with this name " + datasetName
+                                + " in dataverse " + dataverseName);
+                    }
+                    String indexName = stmtCreateIndex.getIndexName().getValue();
+                    Index idx = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataverseName, datasetName, indexName);
+                    if (idx != null) {
+                        if (!stmtCreateIndex.getIfNotExists()) {
+                            throw new AlgebricksException("An index with this name " + indexName + " already exists.");
+                        } else {
+                            stmtCreateIndex.setNeedToCreate(false);
+                        }
+                    } else {
+                        MetadataManager.INSTANCE.addIndex(mdTxnCtx,
+                                new Index(dataverseName, datasetName, indexName, stmtCreateIndex.getIndexType(),
+                                        stmtCreateIndex.getFieldExprs(), stmtCreateIndex.getGramLength(), false));
+                        runCreateIndexJob(hcc, stmtCreateIndex);
+                    }
+                    break;
+                }
+                case TYPE_DECL: {
+                    checkForDataverseConnection(true);
+                    TypeDecl stmtCreateType = (TypeDecl) stmt;
+                    String typeName = stmtCreateType.getIdent().getValue();
+                    Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
+                            compiledDeclarations.getDefaultDataverseName(), typeName);
+                    if (dt != null) {
+                        if (!stmtCreateType.getIfNotExists())
+                            throw new AlgebricksException("A datatype with this name " + typeName + " already exists.");
+                    } else {
+                        if (builtinTypeMap.get(typeName) != null) {
+                            throw new AlgebricksException("Cannot redefine builtin type " + typeName + ".");
+                        } else {
+                            Map<String, IAType> typeMap = computeTypes(mdTxnCtx, (TypeDecl) stmt);
+                            IAType type = typeMap.get(typeName);
+                            MetadataManager.INSTANCE
+                                    .addDatatype(mdTxnCtx, new Datatype(compiledDeclarations.getDefaultDataverseName(),
+                                            typeName, type, false));
+                        }
+                    }
+                    break;
+                }
+                case NODEGROUP_DECL: {
+                    NodegroupDecl stmtCreateNodegroup = (NodegroupDecl) stmt;
+                    String ngName = stmtCreateNodegroup.getNodegroupName().getValue();
+                    NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, ngName);
+                    if (ng != null) {
+                        if (!stmtCreateNodegroup.getIfNotExists())
+                            throw new AlgebricksException("A nodegroup with this name " + ngName + " already exists.");
+                    } else {
+                        List<Identifier> ncIdentifiers = stmtCreateNodegroup.getNodeControllerNames();
+                        List<String> ncNames = new ArrayList<String>(ncIdentifiers.size());
+                        for (Identifier id : ncIdentifiers) {
+                            ncNames.add(id.getValue());
+                        }
+                        MetadataManager.INSTANCE.addNodegroup(mdTxnCtx, new NodeGroup(ngName, ncNames));
+                    }
+                    break;
+                }
+                // drop statements
+                case DATAVERSE_DROP: {
+                    DataverseDropStatement stmtDelete = (DataverseDropStatement) stmt;
+                    String dvName = stmtDelete.getDataverseName().getValue();
 
-				if (compiledDeclarations.isConnectedToDataverse())
-					compiledDeclarations.disconnectFromDataverse();
-				checkForDataverseConnection(false);
+                    Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dvName);
+                    if (dv == null) {
+                        if (!stmtDelete.getIfExists()) {
+                            throw new AlgebricksException("There is no dataverse with this name " + dvName + ".");
+                        }
+                    } else {
+                        String prevDataverse = compiledDeclarations.getDefaultDataverseName();
+                        if (compiledDeclarations.isConnectedToDataverse()) {
+                            compiledDeclarations.disconnectFromDataverse();
+                        }
+                        compiledDeclarations.connectToDataverse(dvName);
+                        List<Dataset> datasets = MetadataManager.INSTANCE.getDataverseDatasets(mdTxnCtx, dvName);
+                        for (int j = 0; j < datasets.size(); j++) {
+                            String datasetName = datasets.get(j).getDatasetName();
+                            DatasetType dsType = datasets.get(j).getDatasetType();
+                            if (dsType == DatasetType.INTERNAL || dsType == DatasetType.FEED) {
+                                List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dvName,
+                                        datasetName);
+                                for (int k = 0; k < indexes.size(); k++) {
+                                    if (indexes.get(k).isSecondaryIndex()) {
+                                        compileIndexDropStatement(hcc, mdTxnCtx, dvName, datasetName, indexes.get(k)
+                                                .getIndexName());
+                                    }
+                                }
+                            }
+                            compileDatasetDropStatement(hcc, mdTxnCtx, dvName, datasetName);
+                        }
 
-				Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx,
-						dvName);
-				if (dv == null) {
-					if (!stmtDelete.getIfExists()) {
-						throw new AlgebricksException(
-								"There is no dataverse with this name "
-										+ dvName + ".");
-					}
-				} else {
-					compiledDeclarations.connectToDataverse(dvName);
-					List<Dataset> datasets = MetadataManager.INSTANCE
-							.getDataverseDatasets(mdTxnCtx, dvName);
-					for (int j = 0; j < datasets.size(); j++) {
-						String datasetName = datasets.get(j).getDatasetName();
-						DatasetType dsType = datasets.get(j).getDatasetType();
-						if (dsType == DatasetType.INTERNAL
-								|| dsType == DatasetType.FEED) {
-							List<Index> indexes = MetadataManager.INSTANCE
-									.getDatasetIndexes(mdTxnCtx, dvName,
-											datasetName);
-							for (int k = 0; k < indexes.size(); k++) {
-								if (indexes.get(k).isSecondaryIndex()) {
-									compileIndexDropStatement(hcc, mdTxnCtx,
-											datasetName, indexes.get(k)
-													.getIndexName());
-								}
-							}
-						}
-						compileDatasetDropStatement(hcc, mdTxnCtx, datasetName);
-					}
-					MetadataManager.INSTANCE.dropDataverse(mdTxnCtx, dvName);
-					if (compiledDeclarations.isConnectedToDataverse())
-						compiledDeclarations.disconnectFromDataverse();
-				}
-				break;
-			}
-			case DATASET_DROP: {
-				checkForDataverseConnection(true);
-				DropStatement stmtDelete = (DropStatement) stmt;
-				String datasetName = stmtDelete.getDatasetName().getValue();
-				if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(
-						ARTIFACT_KIND.DATASET, datasetName)) {
-					throw new AsterixException(
-							"Invalid Operation cannot drop dataset "
-									+ datasetName + " (protected by system)");
-				}
-				Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx,
-						compiledDeclarations.getDataverseName(), datasetName);
-				if (ds == null) {
-					if (!stmtDelete.getIfExists())
-						throw new AlgebricksException(
-								"There is no dataset with this name "
-										+ datasetName + ".");
-				} else {
-					if (ds.getDatasetType() == DatasetType.INTERNAL
-							|| ds.getDatasetType() == DatasetType.FEED) {
-						List<Index> indexes = MetadataManager.INSTANCE
-								.getDatasetIndexes(
-										mdTxnCtx,
-										compiledDeclarations.getDataverseName(),
-										datasetName);
-						for (int j = 0; j < indexes.size(); j++) {
-							if (indexes.get(j).isPrimaryIndex()) {
-								compileIndexDropStatement(hcc, mdTxnCtx,
-										datasetName, indexes.get(j)
-												.getIndexName());
-							}
-						}
-					}
-					compileDatasetDropStatement(hcc, mdTxnCtx, datasetName);
-				}
-				break;
-			}
-			case INDEX_DROP: {
-				checkForDataverseConnection(true);
-				IndexDropStatement stmtDelete = (IndexDropStatement) stmt;
-				String datasetName = stmtDelete.getDatasetName().getValue();
-				Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx,
-						compiledDeclarations.getDataverseName(), datasetName);
-				if (ds == null)
-					throw new AlgebricksException(
-							"There is no dataset with this name " + datasetName
-									+ ".");
-				if (ds.getDatasetType() == DatasetType.INTERNAL
-						|| ds.getDatasetType() == DatasetType.FEED) {
-					String indexName = stmtDelete.getIndexName().getValue();
-					Index idx = MetadataManager.INSTANCE.getIndex(mdTxnCtx,
-							compiledDeclarations.getDataverseName(),
-							datasetName, indexName);
-					if (idx == null) {
-						if (!stmtDelete.getIfExists())
-							throw new AlgebricksException(
-									"There is no index with this name "
-											+ indexName + ".");
-					} else
-						compileIndexDropStatement(hcc, mdTxnCtx, datasetName,
-								indexName);
-				} else {
-					throw new AlgebricksException(
-							datasetName
-									+ " is an external dataset. Indexes are not maintained for external datasets.");
-				}
-				break;
-			}
-			case TYPE_DROP: {
-				checkForDataverseConnection(true);
-				TypeDropStatement stmtDelete = (TypeDropStatement) stmt;
-				String typeName = stmtDelete.getTypeName().getValue();
-				Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-						compiledDeclarations.getDataverseName(), typeName);
-				if (dt == null) {
-					if (!stmtDelete.getIfExists())
-						throw new AlgebricksException(
-								"There is no datatype with this name "
-										+ typeName + ".");
-				} else
-					MetadataManager.INSTANCE.dropDatatype(mdTxnCtx,
-							compiledDeclarations.getDataverseName(), typeName);
-				break;
-			}
-			case NODEGROUP_DROP: {
-				NodeGroupDropStatement stmtDelete = (NodeGroupDropStatement) stmt;
-				String nodegroupName = stmtDelete.getNodeGroupName().getValue();
-				if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(
-						ARTIFACT_KIND.NODEGROUP, nodegroupName)) {
-					throw new AsterixException(
-							"Invalid Operation cannot drop nodegroup "
-									+ nodegroupName + " (protected by system)");
-				}
-				NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx,
-						nodegroupName);
-				if (ng == null) {
-					if (!stmtDelete.getIfExists())
-						throw new AlgebricksException(
-								"There is no nodegroup with this name "
-										+ nodegroupName + ".");
-				} else
-					MetadataManager.INSTANCE.dropNodegroup(mdTxnCtx,
-							nodegroupName);
-				break;
-			}
+                        MetadataManager.INSTANCE.dropDataverse(mdTxnCtx, dvName);
+                        compiledDeclarations.disconnectFromDataverse();
+                        if (prevDataverse != null && !prevDataverse.equals(dvName)) {
+                            compiledDeclarations.connectToDataverse(prevDataverse);
+                        }
+                    }
+                    break;
+                }
+                case DATASET_DROP: {
+                    DropStatement stmtDelete = (DropStatement) stmt;
+                    String dataverseName = stmtDelete.getDataverseName() == null ? compiledDeclarations
+                            .getDefaultDataverseName() : stmtDelete.getDataverseName().getValue();
+                    String datasetName = stmtDelete.getDatasetName().getValue();
+                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+                    if (ds == null) {
+                        if (!stmtDelete.getIfExists())
+                            throw new AlgebricksException("There is no dataset with this name " + datasetName
+                                    + " in dataverse " + dataverseName + ".");
+                    } else {
+                        if (ds.getDatasetType() == DatasetType.INTERNAL || ds.getDatasetType() == DatasetType.FEED) {
+                            List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dataverseName,
+                                    datasetName);
+                            for (int j = 0; j < indexes.size(); j++) {
+                                if (indexes.get(j).isPrimaryIndex()) {
+                                    compileIndexDropStatement(hcc, mdTxnCtx, dataverseName, datasetName, indexes.get(j)
+                                            .getIndexName());
+                                }
+                            }
+                        }
+                        compileDatasetDropStatement(hcc, mdTxnCtx, dataverseName, datasetName);
+                    }
+                    break;
+                }
+                case INDEX_DROP: {
+                    IndexDropStatement stmtIndexDrop = (IndexDropStatement) stmt;
+                    String datasetName = stmtIndexDrop.getDatasetName().getValue();
+                    String dataverseName = stmtIndexDrop.getDataverseName() == null ? compiledDeclarations
+                            .getDefaultDataverseName() : stmtIndexDrop.getDataverseName().getValue();
 
-			case CREATE_FUNCTION: {
-				CreateFunctionStatement cfs = (CreateFunctionStatement) stmt;
-				Function function = new Function(
-						compiledDeclarations.getDataverseName(), cfs
-								.getFunctionIdentifier().getFunctionName(), cfs
-								.getFunctionIdentifier().getArity(),
-						cfs.getParamList(), cfs.getFunctionBody());
-				try {
-					FunctionUtils.getFunctionDecl(function);
-				} catch (Exception e) {
-					throw new AsterixException(
-							"Unable to compile function definition", e);
-				}
-				MetadataManager.INSTANCE
-						.addFunction(mdTxnCtx, new Function(
-								compiledDeclarations.getDataverseName(), cfs
-										.getFunctionIdentifier()
-										.getFunctionName(), cfs
-										.getFunctionIdentifier().getArity(),
-								cfs.getParamList(), cfs.getFunctionBody()));
-				break;
-			}
+                    Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+                    if (ds == null)
+                        throw new AlgebricksException("There is no dataset with this name " + datasetName
+                                + " in dataverse " + dataverseName);
+                    if (ds.getDatasetType() == DatasetType.INTERNAL || ds.getDatasetType() == DatasetType.FEED) {
+                        String indexName = stmtIndexDrop.getIndexName().getValue();
+                        Index idx = MetadataManager.INSTANCE.getIndex(mdTxnCtx, dataverseName, datasetName, indexName);
+                        if (idx == null) {
+                            if (!stmtIndexDrop.getIfExists())
+                                throw new AlgebricksException("There is no index with this name " + indexName + ".");
+                        } else
+                            compileIndexDropStatement(hcc, mdTxnCtx, dataverseName, datasetName, indexName);
+                    } else {
+                        throw new AlgebricksException(datasetName
+                                + " is an external dataset. Indexes are not maintained for external datasets.");
+                    }
+                    break;
+                }
+                case TYPE_DROP: {
+                    checkForDataverseConnection(true);
+                    TypeDropStatement stmtDelete = (TypeDropStatement) stmt;
+                    String typeName = stmtDelete.getTypeName().getValue();
+                    Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
+                            compiledDeclarations.getDefaultDataverseName(), typeName);
+                    if (dt == null) {
+                        if (!stmtDelete.getIfExists())
+                            throw new AlgebricksException("There is no datatype with this name " + typeName + ".");
+                    } else
+                        MetadataManager.INSTANCE.dropDatatype(mdTxnCtx, compiledDeclarations.getDefaultDataverseName(),
+                                typeName);
+                    break;
+                }
+                case NODEGROUP_DROP: {
+                    NodeGroupDropStatement stmtDelete = (NodeGroupDropStatement) stmt;
+                    String nodegroupName = stmtDelete.getNodeGroupName().getValue();
+                    NodeGroup ng = MetadataManager.INSTANCE.getNodegroup(mdTxnCtx, nodegroupName);
+                    if (ng == null) {
+                        if (!stmtDelete.getIfExists())
+                            throw new AlgebricksException("There is no nodegroup with this name " + nodegroupName + ".");
+                    } else
+                        MetadataManager.INSTANCE.dropNodegroup(mdTxnCtx, nodegroupName);
+                    break;
+                }
 
-			case FUNCTION_DROP: {
-				checkForDataverseConnection(true);
-				FunctionDropStatement stmtDropFunction = (FunctionDropStatement) stmt;
-				String functionName = stmtDropFunction.getFunctionName()
-						.getValue();
-                    FunctionIdentifier fId = new FunctionIdentifier(
-						FunctionConstants.ASTERIX_NS, functionName,
-						stmtDropFunction.getArity());
-				if (AsterixBuiltinArtifactMap.isSystemProtectedArtifact(
-						ARTIFACT_KIND.FUNCTION, fId)) {
-					throw new AsterixException(
-							"Invalid Operation cannot drop function "
-									+ functionName + " (protected by system)");
-				}
-				Function function = MetadataManager.INSTANCE.getFunction(
-						mdTxnCtx, compiledDeclarations.getDataverseName(),
-						functionName, stmtDropFunction.getArity());
-				if (function == null) {
-					if (!stmtDropFunction.getIfExists())
-						throw new AlgebricksException(
-								"There is no function with this name "
-										+ functionName + ".");
-				} else {
-					MetadataManager.INSTANCE.dropFunction(mdTxnCtx,
-							compiledDeclarations.getDataverseName(),
-							functionName, stmtDropFunction.getArity());
-				}
-				break;
-			}
-			}
-		}
+                case CREATE_FUNCTION: {
+                    checkForDataverseConnection(true);
+                    CreateFunctionStatement cfs = (CreateFunctionStatement) stmt;
+                    Function function = new Function(compiledDeclarations.getDefaultDataverseName(), cfs
+                            .getaAterixFunction().getName(), cfs.getaAterixFunction().getArity(), cfs.getParamList(),
+                            Function.RETURNTYPE_VOID, cfs.getFunctionBody(), Function.LANGUAGE_AQL,
+                            FunctionKind.SCALAR.toString());
+                    MetadataManager.INSTANCE.addFunction(mdTxnCtx, function);
+                    break;
+                }
 
-		if (disconnectFromDataverse) {
-			if (compiledDeclarations.isConnectedToDataverse()) {
-				compiledDeclarations.disconnectFromDataverse();
-			}
-		}
-	}
+                case FUNCTION_DROP: {
+                    checkForDataverseConnection(true);
+                    FunctionDropStatement stmtDropFunction = (FunctionDropStatement) stmt;
+                    String functionName = stmtDropFunction.getAsterixFunction().getName();
+                    FunctionSignature signature = new FunctionSignature(compiledDeclarations.getDefaultDataverseName(),
+                            functionName, stmtDropFunction.getAsterixFunction().getArity());
+                    Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, signature);
+                    if (function == null) {
+                        if (!stmtDropFunction.getIfExists())
+                            throw new AlgebricksException("There is no function with this name " + functionName + ".");
+                    } else {
+                        MetadataManager.INSTANCE.dropFunction(mdTxnCtx, signature);
+                    }
+                    break;
+                }
+            }
+        }
 
-	private void checkForDataverseConnection(boolean needConnection)
-			throws AlgebricksException {
-		if (compiledDeclarations.isConnectedToDataverse() != needConnection) {
-			if (needConnection)
-				throw new AlgebricksException(
-						"You need first to connect to a dataverse.");
-			else
-				throw new AlgebricksException(
-						"You need first to disconnect from the dataverse.");
-		}
-	}
+        if (disconnectFromDataverse) {
+            if (compiledDeclarations.isConnectedToDataverse()) {
+                compiledDeclarations.disconnectFromDataverse();
+            }
+        }
+    }
 
-	private void runJob(IHyracksClientConnection hcc, JobSpecification jobSpec)
-			throws Exception {
-		System.out.println(jobSpec.toString());
-		executeJobArray(hcc, new JobSpecification[] { jobSpec }, out, pdf);
-	}
+    private void checkForDataverseConnection(boolean needConnection) throws AlgebricksException {
+        if (compiledDeclarations.isConnectedToDataverse() != needConnection) {
+            if (needConnection)
+                throw new AlgebricksException("You need first to connect to a dataverse.");
+            else
+                throw new AlgebricksException("You need first to disconnect from the dataverse.");
+        }
+    }
 
-	public void executeJobArray(IHyracksClientConnection hcc,
-			JobSpecification[] specs, PrintWriter out, DisplayFormat pdf)
-			throws Exception {
-		for (int i = 0; i < specs.length; i++) {
-			specs[i].setMaxReattempts(0);
-			JobId jobId = hcc.startJob(GlobalConfig.HYRACKS_APP_NAME, specs[i]);
-			hcc.waitForCompletion(jobId);
-		}
-	}
+    private void runJob(IHyracksClientConnection hcc, JobSpecification jobSpec) throws Exception {
+        System.out.println(jobSpec.toString());
+        executeJobArray(hcc, new JobSpecification[] { jobSpec }, out, pdf);
+    }
 
-	private void runCreateDatasetJob(IHyracksClientConnection hcc,
-			String datasetName) throws AsterixException, AlgebricksException,
-			Exception {
-		runJob(hcc, DatasetOperations.createDatasetJobSpec(datasetName,
-				compiledDeclarations));
-	}
+    public void executeJobArray(IHyracksClientConnection hcc, JobSpecification[] specs, PrintWriter out,
+            DisplayFormat pdf) throws Exception {
+        for (int i = 0; i < specs.length; i++) {
+            specs[i].setMaxReattempts(0);
+            JobId jobId = hcc.startJob(GlobalConfig.HYRACKS_APP_NAME, specs[i]);
+            hcc.waitForCompletion(jobId);
+        }
+    }
 
-	private void runCreateIndexJob(IHyracksClientConnection hcc,
-			CreateIndexStatement stmtCreateIndex) throws Exception {
-		// TODO: Eventually CreateIndexStatement and
-		// CompiledCreateIndexStatement should be replaced by the corresponding
-		// metadata entity.
-		// For now we must still convert to a CompiledCreateIndexStatement here.
-		CompiledCreateIndexStatement createIndexStmt = new CompiledCreateIndexStatement(
-				stmtCreateIndex.getIndexName().getValue(), stmtCreateIndex
-						.getDatasetName().getValue(),
-				stmtCreateIndex.getFieldExprs(),
-				stmtCreateIndex.getGramLength(), stmtCreateIndex.getIndexType());
-		JobSpecification spec = IndexOperations
-				.buildSecondaryIndexCreationJobSpec(createIndexStmt,
-						compiledDeclarations);
-		if (spec == null) {
-			throw new AsterixException(
-					"Failed to create job spec for creating index '"
-							+ stmtCreateIndex.getDatasetName() + "."
-							+ stmtCreateIndex.getIndexName() + "'");
-		}
-		runJob(hcc, spec);
-	}
+    private void runCreateDatasetJob(IHyracksClientConnection hcc, Dataverse dataverse, String datasetName)
+            throws AsterixException, AlgebricksException, Exception {
+        runJob(hcc, DatasetOperations.createDatasetJobSpec(dataverse, datasetName, compiledDeclarations));
+    }
 
-	private void compileDatasetDropStatement(IHyracksClientConnection hcc,
-			MetadataTransactionContext mdTxnCtx, String datasetName)
-			throws Exception {
-		CompiledDatasetDropStatement cds = new CompiledDatasetDropStatement(
-				datasetName);
-		Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx,
-				compiledDeclarations.getDataverseName(), datasetName);
-		if (ds.getDatasetType() == DatasetType.INTERNAL
-				|| ds.getDatasetType() == DatasetType.FEED) {
-			JobSpecification[] jobs = DatasetOperations
-					.createDropDatasetJobSpec(cds, compiledDeclarations);
-			for (JobSpecification job : jobs)
-				runJob(hcc, job);
-		}
-		MetadataManager.INSTANCE.dropDataset(mdTxnCtx,
-				compiledDeclarations.getDataverseName(), datasetName);
-	}
+    private void runCreateIndexJob(IHyracksClientConnection hcc, CreateIndexStatement stmtCreateIndex) throws Exception {
+        // TODO: Eventually CreateIndexStatement and
+        // CompiledCreateIndexStatement should be replaced by the corresponding
+        // metadata entity.
+        // For now we must still convert to a CompiledCreateIndexStatement here.
+        String dataverseName = stmtCreateIndex.getDataverseName() == null ? compiledDeclarations
+                .getDefaultDataverseName() : stmtCreateIndex.getDataverseName().getValue();
+        CompiledCreateIndexStatement createIndexStmt = new CompiledCreateIndexStatement(stmtCreateIndex.getIndexName()
+                .getValue(), dataverseName, stmtCreateIndex.getDatasetName().getValue(),
+                stmtCreateIndex.getFieldExprs(), stmtCreateIndex.getGramLength(), stmtCreateIndex.getIndexType());
+        JobSpecification spec = IndexOperations.buildSecondaryIndexCreationJobSpec(createIndexStmt,
+                compiledDeclarations);
+        if (spec == null) {
+            throw new AsterixException("Failed to create job spec for creating index '"
+                    + stmtCreateIndex.getDatasetName() + "." + stmtCreateIndex.getIndexName() + "'");
+        }
+        runJob(hcc, spec);
+    }
 
-	public AqlCompiledMetadataDeclarations getCompiledDeclarations() {
-		return compiledDeclarations;
-	}
+    private void compileDatasetDropStatement(IHyracksClientConnection hcc, MetadataTransactionContext mdTxnCtx,
+            String dataverseName, String datasetName) throws Exception {
+        CompiledDatasetDropStatement cds = new CompiledDatasetDropStatement(dataverseName, datasetName);
+        Dataset ds = MetadataManager.INSTANCE.getDataset(mdTxnCtx, dataverseName, datasetName);
+        if (ds.getDatasetType() == DatasetType.INTERNAL || ds.getDatasetType() == DatasetType.FEED) {
+            JobSpecification[] jobs = DatasetOperations.createDropDatasetJobSpec(cds, compiledDeclarations);
+            for (JobSpecification job : jobs)
+                runJob(hcc, job);
+        }
+        MetadataManager.INSTANCE.dropDataset(mdTxnCtx, compiledDeclarations.getDefaultDataverseName(), datasetName);
+    }
 
-	private void compileIndexDropStatement(IHyracksClientConnection hcc,
-			MetadataTransactionContext mdTxnCtx, String datasetName,
-			String indexName) throws Exception {
-		CompiledIndexDropStatement cds = new CompiledIndexDropStatement(
-				datasetName, indexName);
-		runJob(hcc, IndexOperations.buildDropSecondaryIndexJobSpec(cds,
-				compiledDeclarations));
-		MetadataManager.INSTANCE
-				.dropIndex(mdTxnCtx, compiledDeclarations.getDataverseName(),
-						datasetName, indexName);
-	}
+    public AqlCompiledMetadataDeclarations getCompiledDeclarations() {
+        return compiledDeclarations;
+    }
+
+    private void compileIndexDropStatement(IHyracksClientConnection hcc, MetadataTransactionContext mdTxnCtx,
+            String dataverseName, String datasetName, String indexName) throws Exception {
+        CompiledIndexDropStatement cds = new CompiledIndexDropStatement(dataverseName, datasetName, indexName);
+        runJob(hcc, IndexOperations.buildDropSecondaryIndexJobSpec(cds, compiledDeclarations));
+        MetadataManager.INSTANCE.dropIndex(mdTxnCtx, compiledDeclarations.getDefaultDataverseName(), datasetName,
+                indexName);
+    }
+
+    private Map<String, IAType> computeTypes(MetadataTransactionContext mdTxnCtx, TypeDecl tDec)
+            throws AlgebricksException, MetadataException {
+        Map<String, IAType> typeMap = new HashMap<String, IAType>();
+        Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes = new HashMap<String, Map<ARecordType, List<Integer>>>();
+        Map<String, List<AbstractCollectionType>> incompleteItemTypes = new HashMap<String, List<AbstractCollectionType>>();
+        Map<String, List<String>> incompleteTopLevelTypeReferences = new HashMap<String, List<String>>();
+
+        firstPass(tDec, typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences);
+        secondPass(mdTxnCtx, typeMap, incompleteFieldTypes, incompleteItemTypes, incompleteTopLevelTypeReferences);
+
+        return typeMap;
+    }
 
-	private Map<String, IAType> computeTypes(
-			MetadataTransactionContext mdTxnCtx, TypeDecl tDec)
-			throws AlgebricksException, MetadataException {
-		Map<String, IAType> typeMap = new HashMap<String, IAType>();
-		Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes = new HashMap<String, Map<ARecordType, List<Integer>>>();
-		Map<String, List<AbstractCollectionType>> incompleteItemTypes = new HashMap<String, List<AbstractCollectionType>>();
-		Map<String, List<String>> incompleteTopLevelTypeReferences = new HashMap<String, List<String>>();
+    private void secondPass(MetadataTransactionContext mdTxnCtx, Map<String, IAType> typeMap,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
+            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
+            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AlgebricksException, MetadataException {
+        // solve remaining top level references
+        for (String trefName : incompleteTopLevelTypeReferences.keySet()) {
+            IAType t;// = typeMap.get(trefName);
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
+                    compiledDeclarations.getDefaultDataverseName(), trefName);
+            if (dt == null) {
+                throw new AlgebricksException("Could not resolve type " + trefName);
+            } else
+                t = dt.getDatatype();
+            for (String tname : incompleteTopLevelTypeReferences.get(trefName)) {
+                typeMap.put(tname, t);
+            }
+        }
+        // solve remaining field type references
+        for (String trefName : incompleteFieldTypes.keySet()) {
+            IAType t;// = typeMap.get(trefName);
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
+                    compiledDeclarations.getDefaultDataverseName(), trefName);
+            if (dt == null) {
+                throw new AlgebricksException("Could not resolve type " + trefName);
+            } else
+                t = dt.getDatatype();
+            Map<ARecordType, List<Integer>> fieldsToFix = incompleteFieldTypes.get(trefName);
+            for (ARecordType recType : fieldsToFix.keySet()) {
+                List<Integer> positions = fieldsToFix.get(recType);
+                IAType[] fldTypes = recType.getFieldTypes();
+                for (Integer pos : positions) {
+                    if (fldTypes[pos] == null) {
+                        fldTypes[pos] = t;
+                    } else { // nullable
+                        AUnionType nullableUnion = (AUnionType) fldTypes[pos];
+                        nullableUnion.setTypeAtIndex(t, 1);
+                    }
+                }
+            }
+        }
+        // solve remaining item type references
+        for (String trefName : incompleteItemTypes.keySet()) {
+            IAType t;// = typeMap.get(trefName);
+            Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
+                    compiledDeclarations.getDefaultDataverseName(), trefName);
+            if (dt == null) {
+                throw new AlgebricksException("Could not resolve type " + trefName);
+            } else
+                t = dt.getDatatype();
+            for (AbstractCollectionType act : incompleteItemTypes.get(trefName)) {
+                act.setItemType(t);
+            }
+        }
+    }
 
-		firstPass(tDec, typeMap, incompleteFieldTypes, incompleteItemTypes,
-				incompleteTopLevelTypeReferences);
-		secondPass(mdTxnCtx, typeMap, incompleteFieldTypes,
-				incompleteItemTypes, incompleteTopLevelTypeReferences);
+    private void firstPass(TypeDecl td, Map<String, IAType> typeMap,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
+            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
+            Map<String, List<String>> incompleteTopLevelTypeReferences) throws AlgebricksException {
 
-		return typeMap;
-	}
+        TypeExpression texpr = td.getTypeDef();
+        String tdname = td.getIdent().getValue();
+        if (builtinTypeMap.get(tdname) != null) {
+            throw new AlgebricksException("Cannot redefine builtin type " + tdname + " .");
+        }
+        switch (texpr.getTypeKind()) {
+            case TYPEREFERENCE: {
+                TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
+                IAType t = solveTypeReference(tre, typeMap);
+                if (t != null) {
+                    typeMap.put(tdname, t);
+                } else {
+                    addIncompleteTopLevelTypeReference(tdname, tre, incompleteTopLevelTypeReferences);
+                }
+                break;
+            }
+            case RECORD: {
+                RecordTypeDefinition rtd = (RecordTypeDefinition) texpr;
+                ARecordType recType = computeRecordType(tdname, rtd, typeMap, incompleteFieldTypes, incompleteItemTypes);
+                typeMap.put(tdname, recType);
+                break;
+            }
+            case ORDEREDLIST: {
+                OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
+                AOrderedListType olType = computeOrderedListType(tdname, oltd, typeMap, incompleteItemTypes,
+                        incompleteFieldTypes);
+                typeMap.put(tdname, olType);
+                break;
+            }
+            case UNORDEREDLIST: {
+                UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
+                AUnorderedListType ulType = computeUnorderedListType(tdname, ultd, typeMap, incompleteItemTypes,
+                        incompleteFieldTypes);
+                typeMap.put(tdname, ulType);
+                break;
+            }
+            default: {
+                throw new IllegalStateException();
+            }
+        }
+    }
 
-	private void secondPass(MetadataTransactionContext mdTxnCtx,
-			Map<String, IAType> typeMap,
-			Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-			Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-			Map<String, List<String>> incompleteTopLevelTypeReferences)
-			throws AlgebricksException, MetadataException {
-		// solve remaining top level references
-		for (String trefName : incompleteTopLevelTypeReferences.keySet()) {
-			IAType t;// = typeMap.get(trefName);
-			Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-					compiledDeclarations.getDataverseName(), trefName);
-			if (dt == null) {
-				throw new AlgebricksException("Could not resolve type "
-						+ trefName);
-			} else
-				t = dt.getDatatype();
-			for (String tname : incompleteTopLevelTypeReferences.get(trefName)) {
-				typeMap.put(tname, t);
-			}
-		}
-		// solve remaining field type references
-		for (String trefName : incompleteFieldTypes.keySet()) {
-			IAType t;// = typeMap.get(trefName);
-			Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-					compiledDeclarations.getDataverseName(), trefName);
-			if (dt == null) {
-				throw new AlgebricksException("Could not resolve type "
-						+ trefName);
-			} else
-				t = dt.getDatatype();
-			Map<ARecordType, List<Integer>> fieldsToFix = incompleteFieldTypes
-					.get(trefName);
-			for (ARecordType recType : fieldsToFix.keySet()) {
-				List<Integer> positions = fieldsToFix.get(recType);
-				IAType[] fldTypes = recType.getFieldTypes();
-				for (Integer pos : positions) {
-					if (fldTypes[pos] == null) {
-						fldTypes[pos] = t;
-					} else { // nullable
-						AUnionType nullableUnion = (AUnionType) fldTypes[pos];
-						nullableUnion.setTypeAtIndex(t, 1);
-					}
-				}
-			}
-		}
-		// solve remaining item type references
-		for (String trefName : incompleteItemTypes.keySet()) {
-			IAType t;// = typeMap.get(trefName);
-			Datatype dt = MetadataManager.INSTANCE.getDatatype(mdTxnCtx,
-					compiledDeclarations.getDataverseName(), trefName);
-			if (dt == null) {
-				throw new AlgebricksException("Could not resolve type "
-						+ trefName);
-			} else
-				t = dt.getDatatype();
-			for (AbstractCollectionType act : incompleteItemTypes.get(trefName)) {
-				act.setItemType(t);
-			}
-		}
-	}
+    private AOrderedListType computeOrderedListType(String typeName, OrderedListTypeDefinition oltd,
+            Map<String, IAType> typeMap, Map<String, List<AbstractCollectionType>> incompleteItemTypes,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
+        TypeExpression tExpr = oltd.getItemTypeExpression();
+        AOrderedListType aolt = new AOrderedListType(null, typeName);
+        setCollectionItemType(tExpr, typeMap, incompleteItemTypes, incompleteFieldTypes, aolt);
+        return aolt;
+    }
 
-	private void firstPass(TypeDecl td, Map<String, IAType> typeMap,
-			Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-			Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-			Map<String, List<String>> incompleteTopLevelTypeReferences)
-			throws AlgebricksException {
+    private AUnorderedListType computeUnorderedListType(String typeName, UnorderedListTypeDefinition ultd,
+            Map<String, IAType> typeMap, Map<String, List<AbstractCollectionType>> incompleteItemTypes,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
+        TypeExpression tExpr = ultd.getItemTypeExpression();
+        AUnorderedListType ault = new AUnorderedListType(null, typeName);
+        setCollectionItemType(tExpr, typeMap, incompleteItemTypes, incompleteFieldTypes, ault);
+        return ault;
+    }
 
-		TypeExpression texpr = td.getTypeDef();
-		String tdname = td.getIdent().getValue();
-		if (builtinTypeMap.get(tdname) != null) {
-			throw new AlgebricksException("Cannot redefine builtin type "
-					+ tdname + " .");
-		}
-		switch (texpr.getTypeKind()) {
-		case TYPEREFERENCE: {
-			TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
-			IAType t = solveTypeReference(tre, typeMap);
-			if (t != null) {
-				typeMap.put(tdname, t);
-			} else {
-				addIncompleteTopLevelTypeReference(tdname, tre,
-						incompleteTopLevelTypeReferences);
-			}
-			break;
-		}
-		case RECORD: {
-			RecordTypeDefinition rtd = (RecordTypeDefinition) texpr;
-			ARecordType recType = computeRecordType(tdname, rtd, typeMap,
-					incompleteFieldTypes, incompleteItemTypes);
-			typeMap.put(tdname, recType);
-			break;
-		}
-		case ORDEREDLIST: {
-			OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
-			AOrderedListType olType = computeOrderedListType(tdname, oltd,
-					typeMap, incompleteItemTypes, incompleteFieldTypes);
-			typeMap.put(tdname, olType);
-			break;
-		}
-		case UNORDEREDLIST: {
-			UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
-			AUnorderedListType ulType = computeUnorderedListType(tdname, ultd,
-					typeMap, incompleteItemTypes, incompleteFieldTypes);
-			typeMap.put(tdname, ulType);
-			break;
-		}
-		default: {
-			throw new IllegalStateException();
-		}
-		}
-	}
+    private void setCollectionItemType(TypeExpression tExpr, Map<String, IAType> typeMap,
+            Map<String, List<AbstractCollectionType>> incompleteItemTypes,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes, AbstractCollectionType act) {
+        switch (tExpr.getTypeKind()) {
+            case ORDEREDLIST: {
+                OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) tExpr;
+                IAType t = computeOrderedListType(null, oltd, typeMap, incompleteItemTypes, incompleteFieldTypes);
+                act.setItemType(t);
+                break;
+            }
+            case UNORDEREDLIST: {
+                UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) tExpr;
+                IAType t = computeUnorderedListType(null, ultd, typeMap, incompleteItemTypes, incompleteFieldTypes);
+                act.setItemType(t);
+                break;
+            }
+            case RECORD: {
+                RecordTypeDefinition rtd = (RecordTypeDefinition) tExpr;
+                IAType t = computeRecordType(null, rtd, typeMap, incompleteFieldTypes, incompleteItemTypes);
+                act.setItemType(t);
+                break;
+            }
+            case TYPEREFERENCE: {
+                TypeReferenceExpression tre = (TypeReferenceExpression) tExpr;
+                IAType tref = solveTypeReference(tre, typeMap);
+                if (tref != null) {
+                    act.setItemType(tref);
+                } else {
+                    addIncompleteCollectionTypeReference(act, tre, incompleteItemTypes);
+                }
+                break;
+            }
+            default: {
+                throw new IllegalStateException();
+            }
+        }
+    }
 
-	private AOrderedListType computeOrderedListType(String typeName,
-			OrderedListTypeDefinition oltd, Map<String, IAType> typeMap,
-			Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-			Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-		TypeExpression tExpr = oltd.getItemTypeExpression();
-		AOrderedListType aolt = new AOrderedListType(null, typeName);
-		setCollectionItemType(tExpr, typeMap, incompleteItemTypes,
-				incompleteFieldTypes, aolt);
-		return aolt;
-	}
+    private ARecordType computeRecordType(String typeName, RecordTypeDefinition rtd, Map<String, IAType> typeMap,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
+            Map<String, List<AbstractCollectionType>> incompleteItemTypes) {
+        List<String> names = rtd.getFieldNames();
+        int n = names.size();
+        String[] fldNames = new String[n];
+        IAType[] fldTypes = new IAType[n];
+        int i = 0;
+        for (String s : names) {
+            fldNames[i++] = s;
+        }
+        boolean isOpen = rtd.getRecordKind() == RecordKind.OPEN;
+        ARecordType recType = new ARecordType(typeName, fldNames, fldTypes, isOpen);
+        for (int j = 0; j < n; j++) {
+            TypeExpression texpr = rtd.getFieldTypes().get(j);
+            switch (texpr.getTypeKind()) {
+                case TYPEREFERENCE: {
+                    TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
+                    IAType tref = solveTypeReference(tre, typeMap);
+                    if (tref != null) {
+                        if (!rtd.getNullableFields().get(j)) { // not nullable
+                            fldTypes[j] = tref;
+                        } else { // nullable
+                            fldTypes[j] = makeUnionWithNull(null, tref);
+                        }
+                    } else {
+                        addIncompleteFieldTypeReference(recType, j, tre, incompleteFieldTypes);
+                        if (rtd.getNullableFields().get(j)) {
+                            fldTypes[j] = makeUnionWithNull(null, null);
+                        }
+                    }
+                    break;
+                }
+                case RECORD: {
+                    RecordTypeDefinition recTypeDef2 = (RecordTypeDefinition) texpr;
+                    IAType t2 = computeRecordType(null, recTypeDef2, typeMap, incompleteFieldTypes, incompleteItemTypes);
+                    if (!rtd.getNullableFields().get(j)) { // not nullable
+                        fldTypes[j] = t2;
+                    } else { // nullable
+                        fldTypes[j] = makeUnionWithNull(null, t2);
+                    }
+                    break;
+                }
+                case ORDEREDLIST: {
+                    OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
+                    IAType t2 = computeOrderedListType(null, oltd, typeMap, incompleteItemTypes, incompleteFieldTypes);
+                    fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(null, t2) : t2;
+                    break;
+                }
+                case UNORDEREDLIST: {
+                    UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
+                    IAType t2 = computeUnorderedListType(null, ultd, typeMap, incompleteItemTypes, incompleteFieldTypes);
+                    fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(null, t2) : t2;
+                    break;
+                }
+                default: {
+                    throw new IllegalStateException();
+                }
+            }
 
-	private AUnorderedListType computeUnorderedListType(String typeName,
-			UnorderedListTypeDefinition ultd, Map<String, IAType> typeMap,
-			Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-			Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-		TypeExpression tExpr = ultd.getItemTypeExpression();
-		AUnorderedListType ault = new AUnorderedListType(null, typeName);
-		setCollectionItemType(tExpr, typeMap, incompleteItemTypes,
-				incompleteFieldTypes, ault);
-		return ault;
-	}
+        }
 
-	private void setCollectionItemType(TypeExpression tExpr,
-			Map<String, IAType> typeMap,
-			Map<String, List<AbstractCollectionType>> incompleteItemTypes,
-			Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-			AbstractCollectionType act) {
-		switch (tExpr.getTypeKind()) {
-		case ORDEREDLIST: {
-			OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) tExpr;
-			IAType t = computeOrderedListType(null, oltd, typeMap,
-					incompleteItemTypes, incompleteFieldTypes);
-			act.setItemType(t);
-			break;
-		}
-		case UNORDEREDLIST: {
-			UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) tExpr;
-			IAType t = computeUnorderedListType(null, ultd, typeMap,
-					incompleteItemTypes, incompleteFieldTypes);
-			act.setItemType(t);
-			break;
-		}
-		case RECORD: {
-			RecordTypeDefinition rtd = (RecordTypeDefinition) tExpr;
-			IAType t = computeRecordType(null, rtd, typeMap,
-					incompleteFieldTypes, incompleteItemTypes);
-			act.setItemType(t);
-			break;
-		}
-		case TYPEREFERENCE: {
-			TypeReferenceExpression tre = (TypeReferenceExpression) tExpr;
-			IAType tref = solveTypeReference(tre, typeMap);
-			if (tref != null) {
-				act.setItemType(tref);
-			} else {
-				addIncompleteCollectionTypeReference(act, tre,
-						incompleteItemTypes);
-			}
-			break;
-		}
-		default: {
-			throw new IllegalStateException();
-		}
-		}
-	}
+        return recType;
+    }
 
-	private ARecordType computeRecordType(String typeName,
-			RecordTypeDefinition rtd, Map<String, IAType> typeMap,
-			Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes,
-			Map<String, List<AbstractCollectionType>> incompleteItemTypes) {
-		List<String> names = rtd.getFieldNames();
-		int n = names.size();
-		String[] fldNames = new String[n];
-		IAType[] fldTypes = new IAType[n];
-		int i = 0;
-		for (String s : names) {
-			fldNames[i++] = s;
-		}
-		boolean isOpen = rtd.getRecordKind() == RecordKind.OPEN;
-		ARecordType recType = new ARecordType(typeName, fldNames, fldTypes,
-				isOpen);
-		for (int j = 0; j < n; j++) {
-			TypeExpression texpr = rtd.getFieldTypes().get(j);
-			switch (texpr.getTypeKind()) {
-			case TYPEREFERENCE: {
-				TypeReferenceExpression tre = (TypeReferenceExpression) texpr;
-				IAType tref = solveTypeReference(tre, typeMap);
-				if (tref != null) {
-					if (!rtd.getNullableFields().get(j)) { // not nullable
-						fldTypes[j] = tref;
-					} else { // nullable
-						fldTypes[j] = makeUnionWithNull(null, tref);
-					}
-				} else {
-					addIncompleteFieldTypeReference(recType, j, tre,
-							incompleteFieldTypes);
-					if (rtd.getNullableFields().get(j)) {
-						fldTypes[j] = makeUnionWithNull(null, null);
-					}
-				}
-				break;
-			}
-			case RECORD: {
-				RecordTypeDefinition recTypeDef2 = (RecordTypeDefinition) texpr;
-				IAType t2 = computeRecordType(null, recTypeDef2, typeMap,
-						incompleteFieldTypes, incompleteItemTypes);
-				if (!rtd.getNullableFields().get(j)) { // not nullable
-					fldTypes[j] = t2;
-				} else { // nullable
-					fldTypes[j] = makeUnionWithNull(null, t2);
-				}
-				break;
-			}
-			case ORDEREDLIST: {
-				OrderedListTypeDefinition oltd = (OrderedListTypeDefinition) texpr;
-				IAType t2 = computeOrderedListType(null, oltd, typeMap,
-						incompleteItemTypes, incompleteFieldTypes);
-				fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(
-						null, t2) : t2;
-				break;
-			}
-			case UNORDEREDLIST: {
-				UnorderedListTypeDefinition ultd = (UnorderedListTypeDefinition) texpr;
-				IAType t2 = computeUnorderedListType(null, ultd, typeMap,
-						incompleteItemTypes, incompleteFieldTypes);
-				fldTypes[j] = (rtd.getNullableFields().get(j)) ? makeUnionWithNull(
-						null, t2) : t2;
-				break;
-			}
-			default: {
-				throw new IllegalStateException();
-			}
-			}
+    private AUnionType makeUnionWithNull(String unionTypeName, IAType type) {
+        ArrayList<IAType> unionList = new ArrayList<IAType>(2);
+        unionList.add(BuiltinType.ANULL);
+        unionList.add(type);
+        return new AUnionType(unionList, unionTypeName);
+    }
 
-		}
+    private void addIncompleteCollectionTypeReference(AbstractCollectionType collType, TypeReferenceExpression tre,
+            Map<String, List<AbstractCollectionType>> incompleteItemTypes) {
+        String typeName = tre.getIdent().getValue();
+        List<AbstractCollectionType> typeList = incompleteItemTypes.get(typeName);
+        if (typeList == null) {
+            typeList = new LinkedList<AbstractCollectionType>();
+            incompleteItemTypes.put(typeName, typeList);
+        }
+        typeList.add(collType);
+    }
 
-		return recType;
-	}
+    private void addIncompleteFieldTypeReference(ARecordType recType, int fldPosition, TypeReferenceExpression tre,
+            Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
+        String typeName = tre.getIdent().getValue();
+        Map<ARecordType, List<Integer>> refMap = incompleteFieldTypes.get(typeName);
+        if (refMap == null) {
+            refMap = new HashMap<ARecordType, List<Integer>>();
+            incompleteFieldTypes.put(typeName, refMap);
+        }
+        List<Integer> typeList = refMap.get(recType);
+        if (typeList == null) {
+            typeList = new ArrayList<Integer>();
+            refMap.put(recType, typeList);
+        }
+        typeList.add(fldPosition);
+    }
 
-	private AUnionType makeUnionWithNull(String unionTypeName, IAType type) {
-		ArrayList<IAType> unionList = new ArrayList<IAType>(2);
-		unionList.add(BuiltinType.ANULL);
-		unionList.add(type);
-		return new AUnionType(unionList, unionTypeName);
-	}
+    private void addIncompleteTopLevelTypeReference(String tdeclName, TypeReferenceExpression tre,
+            Map<String, List<String>> incompleteTopLevelTypeReferences) {
+        String name = tre.getIdent().getValue();
+        List<String> refList = incompleteTopLevelTypeReferences.get(name);
+        if (refList == null) {
+            refList = new LinkedList<String>();
+            incompleteTopLevelTypeReferences.put(name, refList);
+        }
+        refList.add(tdeclName);
+    }
 
-	private void addIncompleteCollectionTypeReference(
-			AbstractCollectionType collType, TypeReferenceExpression tre,
-			Map<String, List<AbstractCollectionType>> incompleteItemTypes) {
-		String typeName = tre.getIdent().getValue();
-		List<AbstractCollectionType> typeList = incompleteItemTypes
-				.get(typeName);
-		if (typeList == null) {
-			typeList = new LinkedList<AbstractCollectionType>();
-			incompleteItemTypes.put(typeName, typeList);
-		}
-		typeList.add(collType);
-	}
+    private IAType solveTypeReference(TypeReferenceExpression tre, Map<String, IAType> typeMap) {
+        String name = tre.getIdent().getValue();
+        IAType builtin = builtinTypeMap.get(name);
+        if (builtin != null) {
+            return builtin;
+        } else {
+            return typeMap.get(name);
+        }
+    }
 
-	private void addIncompleteFieldTypeReference(ARecordType recType,
-			int fldPosition, TypeReferenceExpression tre,
-			Map<String, Map<ARecordType, List<Integer>>> incompleteFieldTypes) {
-		String typeName = tre.getIdent().getValue();
-		Map<ARecordType, List<Integer>> refMap = incompleteFieldTypes
-				.get(typeName);
-		if (refMap == null) {
-			refMap = new HashMap<ARecordType, List<Integer>>();
-			incompleteFieldTypes.put(typeName, refMap);
-		}
-		List<Integer> typeList = refMap.get(recType);
-		if (typeList == null) {
-			typeList = new ArrayList<Integer>();
-			refMap.put(recType, typeList);
-		}
-		typeList.add(fldPosition);
-	}
+    public static interface ICompiledStatement {
 
-	private void addIncompleteTopLevelTypeReference(String tdeclName,
-			TypeReferenceExpression tre,
-			Map<String, List<String>> incompleteTopLevelTypeReferences) {
-		String name = tre.getIdent().getValue();
-		List<String> refList = incompleteTopLevelTypeReferences.get(name);
-		if (refList == null) {
-			refList = new LinkedList<String>();
-			incompleteTopLevelTypeReferences.put(name, refList);
-		}
-		refList.add(tdeclName);
-	}
+        public abstract Kind getKind();
+    }
 
-	private IAType solveTypeReference(TypeReferenceExpression tre,
-			Map<String, IAType> typeMap) {
-		String name = tre.getIdent().getValue();
-		IAType builtin = builtinTypeMap.get(name);
-		if (builtin != null) {
-			return builtin;
-		} else {
-			return typeMap.get(name);
-		}
-	}
+    public static class CompiledLoadFromFileStatement implements ICompiledStatement, IParseFileSplitsDecl {
+        private String datasetName;
+        private FileSplit[] splits;
+        private boolean alreadySorted;
+        private Character delimChar;
 
-	public static interface ICompiledStatement {
+        public CompiledLoadFromFileStatement(String datasetName, FileSplit[] splits, Character delimChar,
+                boolean alreadySorted) {
+            this.datasetName = datasetName;
+            this.splits = splits;
+            this.delimChar = delimChar;
+            this.alreadySorted = alreadySorted;
+        }
 
-		public abstract Kind getKind();
-	}
+        public String getDatasetName() {
+            return datasetName;
+        }
 
-	public static class CompiledLoadFromFileStatement implements
-			ICompiledStatement, IParseFileSplitsDecl {
-		private String datasetName;
-		private FileSplit[] splits;
-		private boolean alreadySorted;
-		private Character delimChar;
+        @Override
+        public FileSplit[] getSplits() {
+            return splits;
+        }
 
-		public CompiledLoadFromFileStatement(String datasetName,
-				FileSplit[] splits, Character delimChar, boolean alreadySorted) {
-			this.datasetName = datasetName;
-			this.splits = splits;
-			this.delimChar = delimChar;
-			this.alreadySorted = alreadySorted;
-		}
+        @Override
+        public Character getDelimChar() {
+            return delimChar;
+        }
 
-		public String getDatasetName() {
-			return datasetName;
-		}
+        public boolean alreadySorted() {
+            return alreadySorted;
+        }
 
-		@Override
-		public FileSplit[] getSplits() {
-			return splits;
-		}
+        @Override
+        public boolean isDelimitedFileFormat() {
+            return delimChar != null;
+        }
 
-		@Override
-		public Character getDelimChar() {
-			return delimChar;
-		}
+        @Override
+        public Kind getKind() {
+            return Kind.LOAD_FROM_FILE;
+        }
+    }
 
-		public boolean alreadySorted() {
-			return alreadySorted;
-		}
+    public static class CompiledWriteFromQueryResultStatement implements ICompiledStatement {
 
-		@Override
-		public boolean isDelimitedFileFormat() {
-			return delimChar != null;
-		}
+        private String dataverseName;
+        private String datasetName;
+        private Query query;
+        private int varCounter;
 
-		@Override
-		public Kind getKind() {
-			return Kind.LOAD_FROM_FILE;
-		}
-	}
+        public CompiledWriteFromQueryResultStatement(String dataverseName, String datasetName, Query query,
+                int varCounter) {
+            this.dataverseName = dataverseName;
+            this.datasetName = datasetName;
+            this.query = query;
+            this.varCounter = varCounter;
+        }
 
-	public static class CompiledWriteFromQueryResultStatement implements
-			ICompiledStatement {
+        public String getDataverseName() {
+            return dataverseName;
+        }
 
-		private String datasetName;
-		private Query query;
-		private int varCounter;
+        public String getDatasetName() {
+            return datasetName;
+        }
 
-		public CompiledWriteFromQueryResultStatement(String datasetName,
-				Query query, int varCounter) {
-			this.datasetName = datasetName;
-			this.query = query;
-			this.varCounter = varCounter;
-		}
+        public int getVarCounter() {
+            return varCounter;
+        }
 
-		public String getDatasetName() {
-			return datasetName;
-		}
+        public Query getQuery() {
+            return query;
+        }
 
-		public int getVarCounter() {
-			return varCounter;
-		}
+        @Override
+        public Kind getKind() {
+            return Kind.WRITE_FROM_QUERY_RESULT;
+        }
 
-		public Query getQuery() {
-			return query;
-		}
+    }
 
-		@Override
-		public Kind getKind() {
-			return Kind.WRITE_FROM_QUERY_RESULT;
-		}
+    public static class CompiledDatasetDropStatement implements ICompiledStatement {
+        private final String dataverseName;
+        private final String datasetName;
 
-	}
+        public CompiledDatasetDropStatement(String dataverseName, String datasetName) {
+            this.dataverseName = dataverseName;
+            this.datasetName = datasetName;
+        }
 
-	public static class CompiledDatasetDropStatement implements
-			ICompiledStatement {
-		private String datasetName;
+        public String getDataverseName() {
+            return dataverseName;
+        }
 
-		public CompiledDatasetDropStatement(String datasetName) {
-			this.datasetName = datasetName;
-		}
+        public String getDatasetName() {
+            return datasetName;
+        }
 
-		public String getDatasetName() {
-			return datasetName;
-		}
+        @Override
+        public Kind getKind() {
+            return Kind.DATASET_DROP;
+        }
+    }
 
-		@Override
-		public Kind getKind() {
-			return Kind.DATASET_DROP;
-		}
-	}
+    // added by yasser
+    public static class CompiledCreateDataverseStatement implements ICompiledStatement {
+        private String dataverseName;
+        private String format;
 
-	// added by yasser
-	public static class CompiledCreateDataverseStatement implements
-			ICompiledStatement {
-		private String dataverseName;
-		private String format;
+        public CompiledCreateDataverseStatement(String dataverseName, String format) {
+            this.dataverseName = dataverseName;
+            this.format = format;
+        }
 
-		public CompiledCreateDataverseStatement(String dataverseName,
-				String format) {
-			this.dataverseName = dataverseName;
-			this.format = format;
-		}
+        public String getDataverseName() {
+            return dataverseName;
+        }
 
-		public String getDataverseName() {
-			return dataverseName;
-		}
+        public String getFormat() {
+            return format;
+        }
 
-		public String getFormat() {
-			return format;
-		}
+        @Override
+        public Kind getKind() {
+            return Kind.CREATE_DATAVERSE;
+        }
+    }
 
-		@Override
-		public Kind getKind() {
-			return Kind.CREATE_DATAVERSE;
-		}
-	}
+    public static class CompiledNodeGroupDropStatement implements ICompiledStatement {
+        private String nodeGroupName;
 
-	public static class CompiledNodeGroupDropStatement implements
-			ICompiledStatement {
-		private String nodeGroupName;
+        public CompiledNodeGroupDropStatement(String nodeGroupName) {
+            this.nodeGroupName = nodeGroupName;
+        }
 
-		public CompiledNodeGroupDropStatement(String nodeGroupName) {
-			this.nodeGroupName = nodeGroupName;
-		}
+        public String getNodeGroupName() {
+            return nodeGroupName;
+        }
 
-		public String getNodeGroupName() {
-			return nodeGroupName;
-		}
+        @Override
+        public Kind getKind() {
+            return Kind.NODEGROUP_DROP;
+        }
+    }
 
-		@Override
-		public Kind getKind() {
-			return Kind.NODEGROUP_DROP;
-		}
-	}
+    public static class CompiledIndexDropStatement implements ICompiledStatement {
+        private String dataverseName;
+        private String datasetName;
+        private String indexName;
 
-	public static class CompiledIndexDropStatement implements
-			ICompiledStatement {
-		private String datasetName;
-		private String indexName;
+        public CompiledIndexDropStatement(String dataverseName, String datasetName, String indexName) {
+            this.dataverseName = dataverseName;
+            this.datasetName = datasetName;
+            this.indexName = indexName;
+        }
 
-		public CompiledIndexDropStatement(String datasetName, String indexName) {
-			this.datasetName = datasetName;
-			this.indexName = indexName;
-		}
+        public String getDataverseName() {
+            return dataverseName;
+        }
 
-		public String getDatasetName() {
-			return datasetName;
-		}
+        public String getDatasetName() {
+            return datasetName;
+        }
 
-		public String getIndexName() {
-			return indexName;
-		}
+        public String getIndexName() {
+            return indexName;
+        }
 
-		@Override
-		public Kind getKind() {
-			return Kind.INDEX_DROP;
-		}
-	}
+        @Override
+        public Kind getKind() {
+            return Kind.INDEX_DROP;
+        }
+    }
 
-	public static class CompiledDataverseDropStatement implements
-			ICompiledStatement {
-		private String dataverseName;
-		private boolean ifExists;
+    public static class CompiledDataverseDropStatement implements ICompiledStatement {
+        private String dataverseName;
+        private boolean ifExists;
 
-		public CompiledDataverseDropStatement(String dataverseName,
-				boolean ifExists) {
-			this.dataverseName = dataverseName;
-			this.ifExists = ifExists;
-		}
+        public CompiledDataverseDropStatement(String dataverseName, boolean ifExists) {
+            this.dataverseName = dataverseName;
+            this.ifExists = ifExists;
+        }
 
-		public String getDataverseName() {
-			return dataverseName;
-		}
+        public String getDataverseName() {
+            return dataverseName;
+        }
 
-		public boolean getIfExists() {
-			return ifExists;
-		}
+        public boolean getIfExists() {
+            return ifExists;
+        }
 
-		@Override
-		public Kind getKind() {
-			return Kind.DATAVERSE_DROP;
-		}
-	}
+        @Override
+        public Kind getKind() {
+            return Kind.DATAVERSE_DROP;
+        }
+    }
 
-	public static class CompiledTypeDropStatement implements ICompiledStatement {
-		private String typeName;
+    public static class CompiledTypeDropStatement implements ICompiledStatement {
+        private String typeName;
 
-		public CompiledTypeDropStatement(String nodeGroupName) {
-			this.typeName = nodeGroupName;
-		}
+        public CompiledTypeDropStatement(String nodeGroupName) {
+            this.typeName = nodeGroupName;
+        }
 
-		public String getTypeName() {
-			return typeName;
-		}
+        public String getTypeName() {
+            return typeName;
+        }
 
-		@Override
-		public Kind getKind() {
-			return Kind.TYPE_DROP;
-		}
-	}
+        @Override
+        public Kind getKind() {
+            return Kind.TYPE_DROP;
+        }
+    }
 }
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 b028e06..a4c3e44 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
@@ -30,6 +30,7 @@
 import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.metadata.declared.AqlMetadataProvider;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
+import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.ExternalDatasetDetails;
 import edu.uci.ics.asterix.metadata.entities.Index;
 import edu.uci.ics.asterix.metadata.utils.DatasetUtils;
@@ -119,8 +120,8 @@
                 if (index.isSecondaryIndex()) {
                     specs[i] = new JobSpecification();
                     Pair<IFileSplitProvider, AlgebricksPartitionConstraint> idxSplitsAndConstraint = metadata
-                            .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName,
-                                    index.getIndexName());
+                            .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataset.getDataverseName(),
+                                    datasetName, index.getIndexName());
                     TreeIndexDropOperatorDescriptor secondaryBtreeDrop = new TreeIndexDropOperatorDescriptor(specs[i],
                             storageManager, indexRegistryProvider, idxSplitsAndConstraint.first);
                     AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(specs[i], secondaryBtreeDrop,
@@ -135,7 +136,8 @@
         specs[specs.length - 1] = specPrimary;
 
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataset.getDataverseName(), datasetName,
+                        datasetName);
         TreeIndexDropOperatorDescriptor primaryBtreeDrop = new TreeIndexDropOperatorDescriptor(specPrimary,
                 storageManager, indexRegistryProvider, splitsAndConstraint.first);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(specPrimary, primaryBtreeDrop,
@@ -146,19 +148,26 @@
         return specs;
     }
 
-    public static JobSpecification createDatasetJobSpec(String datasetName, AqlCompiledMetadataDeclarations metadata)
-            throws AsterixException, AlgebricksException {
-        Dataset dataset = metadata.findDataset(datasetName);
-        if (dataset == null) {
-            throw new AsterixException("Could not find dataset " + datasetName);
+    public static JobSpecification createDatasetJobSpec(Dataverse dataverse, String datasetName,
+            AqlCompiledMetadataDeclarations metadata) throws AsterixException, AlgebricksException {
+        String dataverseName = dataverse.getDataverseName();
+        IDataFormat format;
+        try {
+            format = (IDataFormat) Class.forName(dataverse.getDataFormat()).newInstance();
+        } catch (Exception e) {
+            throw new AsterixException(e);
         }
-        ARecordType itemType = (ARecordType) metadata.findType(dataset.getItemTypeName());
+        Dataset dataset = metadata.findDataset(dataverseName, datasetName);
+        if (dataset == null) {
+            throw new AsterixException("Could not find dataset " + datasetName + " in datavetse " + dataverseName);
+        }
+        ARecordType itemType = (ARecordType) metadata.findType(dataverseName, dataset.getItemTypeName());
         JobSpecification spec = new JobSpecification();
         IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(dataset,
-                itemType, metadata.getFormat().getBinaryComparatorFactoryProvider());
+                itemType, format.getBinaryComparatorFactoryProvider());
         ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(dataset, itemType);
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, datasetName);
         FileSplit[] fs = splitsAndConstraint.first.getFileSplits();
         StringBuilder sb = new StringBuilder();
         for (int i = 0; i < fs.length; i++) {
@@ -178,11 +187,13 @@
 
     @SuppressWarnings("rawtypes")
     public static Job createLoadDatasetJobSpec(CompiledLoadFromFileStatement loadStmt,
-            AqlCompiledMetadataDeclarations metadata) throws AsterixException, AlgebricksException {
+            AqlCompiledMetadataDeclarations metadata, IDataFormat format) throws AsterixException, AlgebricksException {
+        String dataverseName = loadStmt.getDataverseName();
         String datasetName = loadStmt.getDatasetName();
-        Dataset dataset = metadata.findDataset(datasetName);
+
+        Dataset dataset = metadata.findDataset(dataverseName, datasetName);
         if (dataset == null) {
-            throw new AsterixException("Could not find dataset " + datasetName);
+            throw new AsterixException("Could not find dataset " + datasetName + " in dataverse " + dataverseName);
         }
         if (dataset.getDatasetType() != DatasetType.INTERNAL && dataset.getDatasetType() != DatasetType.FEED) {
             throw new AsterixException("Cannot load data into dataset  (" + datasetName + ")" + "of type "
@@ -190,14 +201,13 @@
         }
         JobSpecification spec = new JobSpecification();
 
-        ARecordType itemType = (ARecordType) metadata.findType(dataset.getItemTypeName());
-        IDataFormat format = metadata.getFormat();
+        ARecordType itemType = (ARecordType) metadata.findType(dataverseName, dataset.getItemTypeName());
         ISerializerDeserializer payloadSerde = format.getSerdeProvider().getSerializerDeserializer(itemType);
 
         IBinaryHashFunctionFactory[] hashFactories = DatasetUtils.computeKeysBinaryHashFunFactories(dataset, itemType,
-                metadata.getFormat().getBinaryHashFunctionFactoryProvider());
+                format.getBinaryHashFunctionFactoryProvider());
         IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(dataset,
-                itemType, metadata.getFormat().getBinaryComparatorFactoryProvider());
+                itemType, format.getBinaryComparatorFactoryProvider());
         ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(dataset, itemType);
 
         ExternalDatasetDetails externalDatasetDetails = new ExternalDatasetDetails(loadStmt.getAdapter(),
@@ -206,8 +216,7 @@
                 .buildExternalDataScannerRuntime(spec, itemType, externalDatasetDetails, format);
         IOperatorDescriptor scanner = p.first;
         AlgebricksPartitionConstraint scannerPc = p.second;
-        RecordDescriptor recDesc = computePayloadKeyRecordDescriptor(dataset, itemType, payloadSerde,
-                metadata.getFormat());
+        RecordDescriptor recDesc = computePayloadKeyRecordDescriptor(dataset, itemType, payloadSerde, format);
         AlgebricksPartitionConstraintHelper.setPartitionConstraintInJobSpec(spec, scanner, scannerPc);
 
         AssignRuntimeFactory assign = makeAssignRuntimeFactory(dataset, itemType, metadata.getFormat());
@@ -229,7 +238,7 @@
         fieldPermutation[numKeys] = 0;
 
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, datasetName);
 
         FileSplit[] fs = splitsAndConstraint.first.getFileSplits();
         StringBuilder sb = new StringBuilder();
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java b/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java
index 66a5d56..ed27ced 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/file/FeedOperations.java
@@ -60,7 +60,7 @@
 
     private static JobSpecification createSendMessageToFeedJobSpec(CompiledControlFeedStatement controlFeedStatement,
             AqlCompiledMetadataDeclarations metadata) throws AsterixException {
-        String datasetName = controlFeedStatement.getDatasetName().getValue();
+        String datasetName = controlFeedStatement.getDatasetName();
         String datasetPath = metadata.getRelativePath(datasetName);
 
         LOGGER.info(" DATASETPATH: " + datasetPath);
@@ -100,7 +100,7 @@
 
         try {
             Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> p = AqlMetadataProvider.buildFeedMessengerRuntime(
-                    spec, metadata, (FeedDatasetDetails) dataset.getDatasetDetails(), metadata.getDataverseName(),
+                    spec, metadata, (FeedDatasetDetails) dataset.getDatasetDetails(), metadata.getDefaultDataverseName(),
                     datasetName, feedMessages);
             feedMessenger = p.first;
             messengerPc = p.second;
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 7bd7ae6..b1abb1d 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
@@ -49,7 +49,8 @@
         IStorageManagerInterface storageManager = AsterixStorageManagerInterface.INSTANCE;
 
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = datasetDecls
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetDecls.getDefaultDataverseName(),
+                        datasetName, indexName);
         TreeIndexDropOperatorDescriptor btreeDrop = new TreeIndexDropOperatorDescriptor(spec, storageManager,
                 indexRegistryProvider, splitsAndConstraint.first);
         AlgebricksPartitionConstraintHelper
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 65f6f5e..9c290917 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
@@ -134,11 +134,13 @@
         numPrimaryKeys = DatasetUtils.getPartitioningKeys(dataset).size();
         numSecondaryKeys = createIndexStmt.getKeyFields().size();
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> primarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, datasetName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(metadata.getDefaultDataverseName(), datasetName,
+                        datasetName);
         primaryFileSplitProvider = primarySplitsAndConstraint.first;
         primaryPartitionConstraint = primarySplitsAndConstraint.second;
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, secondaryIndexName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(metadata.getDefaultDataverseName(), datasetName,
+                        secondaryIndexName);
         secondaryFileSplitProvider = secondarySplitsAndConstraint.first;
         secondaryPartitionConstraint = secondarySplitsAndConstraint.second;
         // Must be called in this order.
@@ -281,7 +283,8 @@
             fieldPermutation[i] = i;
         }
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> secondarySplitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, secondaryIndexName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(metadata.getDefaultDataverseName(), datasetName,
+                        secondaryIndexName);
         TreeIndexBulkLoadOperatorDescriptor treeIndexBulkLoadOp = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 AsterixStorageManagerInterface.INSTANCE, AsterixIndexRegistryProvider.INSTANCE,
                 secondarySplitsAndConstraint.first, secondaryRecDesc.getTypeTraits(), secondaryComparatorFactories,
diff --git a/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/RuntimeTest.java b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/RuntimeTest.java
index b7877a3..75ed982 100644
--- a/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/RuntimeTest.java
+++ b/asterix-app/src/test/java/edu/uci/ics/asterix/test/runtime/RuntimeTest.java
@@ -12,10 +12,8 @@
 import java.util.logging.Logger;
 
 import org.apache.commons.io.FileUtils;
-import org.junit.After;
 import org.junit.AfterClass;
 import org.junit.Assume;
-import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Test;
 import org.junit.internal.AssumptionViolatedException;
diff --git a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_dataset.adm b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_dataset.adm
index b1007e3..2df4fe2 100644
--- a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_dataset.adm
+++ b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_dataset.adm
@@ -1,9 +1,9 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "FunctionName", "FunctionArity" ], "PrimaryKey": [ "DataverseName", "FunctionName", "FunctionArity" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:07 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Customers", "DataTypeName": "CustomerType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "cid", "name" ], "PrimaryKey": [ "cid", "name" ], "GroupName": "group1" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:12 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "DataTypeName": "OrderType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "oid" ], "PrimaryKey": [ "oid" ], "GroupName": "group1" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Tue Feb 14 12:55:12 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Aug 13 10:04:44 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Aug 13 10:04:44 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Aug 13 10:04:44 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Aug 13 10:04:44 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Aug 13 10:04:44 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Aug 13 10:04:44 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Aug 13 10:04:44 EDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Customers", "DataTypeName": "CustomerType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "cid", "name" ], "PrimaryKey": [ "cid", "name" ], "GroupName": "group1" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Aug 13 10:04:44 EDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "DataTypeName": "OrderType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "oid" ], "PrimaryKey": [ "oid" ], "GroupName": "group1" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Mon Aug 13 10:04:44 EDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_datatype.adm b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_datatype.adm
index e084f41..9f9222a 100644
--- a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_datatype.adm
+++ b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_datatype.adm
@@ -1,68 +1,68 @@
-{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_FunctionParams_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "FunctionName", "FieldType": "string" }, { "FieldName": "FunctionArity", "FieldType": "string" }, { "FieldName": "FunctionParams", "FieldType": "Field_FunctionParams_in_FunctionRecordType" }, { "FieldName": "FunctionBody", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Adapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "Adapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "string" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Tue Feb 14 13:02:10 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "AddressType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "street", "FieldType": "StreetType" }, { "FieldName": "city", "FieldType": "string" }, { "FieldName": "state", "FieldType": "string" }, { "FieldName": "zip", "FieldType": "int16" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "CustomerType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "name", "FieldType": "string" }, { "FieldName": "age", "FieldType": "Field_age_in_CustomerType" }, { "FieldName": "address", "FieldType": "Field_address_in_CustomerType" }, { "FieldName": "interests", "FieldType": "Field_interests_in_CustomerType" }, { "FieldName": "children", "FieldType": "Field_children_in_CustomerType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_address_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "AddressType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_age_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_children_in_CustomerType_ItemType" }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "name", "FieldType": "string" }, { "FieldName": "dob", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_interests_in_CustomerType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_items_in_OrderType_ItemType" }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "number", "FieldType": "int64" }, { "FieldName": "storeIds", "FieldType": "Field_storeIds_in_Field_items_in_OrderType_ItemType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_number_in_StreetType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "Field_storeIds_in_Field_items_in_OrderType_ItemType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "int8", "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "OrderType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "oid", "FieldType": "int32" }, { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "orderstatus", "FieldType": "string" }, { "FieldName": "orderpriority", "FieldType": "string" }, { "FieldName": "clerk", "FieldType": "string" }, { "FieldName": "total", "FieldType": "float" }, { "FieldName": "items", "FieldType": "Field_items_in_OrderType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
-{ "DataverseName": "custord", "DatatypeName": "StreetType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "number", "FieldType": "Field_number_in_StreetType" }, { "FieldName": "name", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Tue Feb 14 13:02:14 PST 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "DataTypeName", "FieldType": "string" }, { "FieldName": "DatasetType", "FieldType": "string" }, { "FieldName": "InternalDetails", "FieldType": "Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "ExternalDetails", "FieldType": "Field_ExternalDetails_in_DatasetRecordType" }, { "FieldName": "FeedDetails", "FieldType": "Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatatypeName", "FieldType": "string" }, { "FieldName": "Derived", "FieldType": "Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "DataverseRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DataFormat", "FieldType": "string" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FieldName", "FieldType": "string" }, { "FieldName": "FieldType", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_NodeNames_in_NodeGroupRecordType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Params_in_FunctionRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Value", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_SearchKey_in_IndexRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "string" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "FunctionRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "Name", "FieldType": "string" }, { "FieldName": "Params", "FieldType": "Field_Params_in_FunctionRecordType" }, { "FieldName": "ReturnType", "FieldType": "string" }, { "FieldName": "Definition", "FieldType": "string" }, { "FieldName": "Language", "FieldType": "string" }, { "FieldName": "Kind", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "IndexRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "DataverseName", "FieldType": "string" }, { "FieldName": "DatasetName", "FieldType": "string" }, { "FieldName": "IndexName", "FieldType": "string" }, { "FieldName": "IndexStructure", "FieldType": "string" }, { "FieldName": "SearchKey", "FieldType": "Field_SearchKey_in_IndexRecordType" }, { "FieldName": "IsPrimary", "FieldType": "boolean" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeGroupRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "NodeNames", "FieldType": "Field_NodeNames_in_NodeGroupRecordType" }, { "FieldName": "Timestamp", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "NodeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "NodeName", "FieldType": "string" }, { "FieldName": "NumberOfCores", "FieldType": "int32" }, { "FieldName": "WorkingMemorySize", "FieldType": "int32" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Tag", "FieldType": "string" }, { "FieldName": "IsAnonymous", "FieldType": "boolean" }, { "FieldName": "EnumValues", "FieldType": "Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Record", "FieldType": "Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "Union", "FieldType": "Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "UnorderedList", "FieldType": "Field_UnorderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" }, { "FieldName": "OrderedList", "FieldType": "Field_OrderedList_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_EnumValues_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "Adapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_ExternalDetails_in_DatasetRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" }, { "FieldName": "Adapter", "FieldType": "string" }, { "FieldName": "Properties", "FieldType": "Field_Properties_in_Type_#1_UnionType_Field_FeedDetails_in_DatasetRecordType" }, { "FieldName": "Function", "FieldType": "string" }, { "FieldName": "Status", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "FileStructure", "FieldType": "string" }, { "FieldName": "PartitioningStrategy", "FieldType": "string" }, { "FieldName": "PartitioningKey", "FieldType": "Field_PartitioningKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "PrimaryKey", "FieldType": "Field_PrimaryKey_in_Type_#1_UnionType_Field_InternalDetails_in_DatasetRecordType" }, { "FieldName": "GroupName", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "IsOpen", "FieldType": "boolean" }, { "FieldName": "Fields", "FieldType": "Field_Fields_in_Type_#1_UnionType_Field_Record_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "Type_#1_UnionType_Field_Union_in_Type_#1_UnionType_Field_Derived_in_DatatypeRecordType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "string" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "boolean", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "circle", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "date", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "datetime", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "double", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "duration", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "float", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int16", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int32", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int64", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "int8", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "line", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "null", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "point", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "point3d", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "polygon", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "rectangle", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "string", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "Metadata", "DatatypeName": "time", "Derived": null, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "AddressType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "street", "FieldType": "StreetType" }, { "FieldName": "city", "FieldType": "string" }, { "FieldName": "state", "FieldType": "string" }, { "FieldName": "zip", "FieldType": "int16" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "CustomerType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "name", "FieldType": "string" }, { "FieldName": "age", "FieldType": "Field_age_in_CustomerType" }, { "FieldName": "address", "FieldType": "Field_address_in_CustomerType" }, { "FieldName": "interests", "FieldType": "Field_interests_in_CustomerType" }, { "FieldName": "children", "FieldType": "Field_children_in_CustomerType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_address_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "AddressType" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_age_in_CustomerType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_children_in_CustomerType_ItemType" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_children_in_CustomerType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "name", "FieldType": "string" }, { "FieldName": "dob", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_interests_in_CustomerType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "string", "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType", "Derived": { "Tag": "ORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": null, "OrderedList": "Field_items_in_OrderType_ItemType" }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_items_in_OrderType_ItemType", "Derived": { "Tag": "RECORD", "IsAnonymous": true, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "number", "FieldType": "int64" }, { "FieldName": "storeIds", "FieldType": "Field_storeIds_in_Field_items_in_OrderType_ItemType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_number_in_StreetType", "Derived": { "Tag": "UNION", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": [ "null", "int32" ], "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "Field_storeIds_in_Field_items_in_OrderType_ItemType", "Derived": { "Tag": "UNORDEREDLIST", "IsAnonymous": true, "EnumValues": null, "Record": null, "Union": null, "UnorderedList": "int8", "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "OrderType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": true, "Fields": [ { "FieldName": "oid", "FieldType": "int32" }, { "FieldName": "cid", "FieldType": "int32" }, { "FieldName": "orderstatus", "FieldType": "string" }, { "FieldName": "orderpriority", "FieldType": "string" }, { "FieldName": "clerk", "FieldType": "string" }, { "FieldName": "total", "FieldType": "float" }, { "FieldName": "items", "FieldType": "Field_items_in_OrderType" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
+{ "DataverseName": "custord", "DatatypeName": "StreetType", "Derived": { "Tag": "RECORD", "IsAnonymous": false, "EnumValues": null, "Record": { "IsOpen": false, "Fields": [ { "FieldName": "number", "FieldType": "Field_number_in_StreetType" }, { "FieldName": "name", "FieldType": "string" } ] }, "Union": null, "UnorderedList": null, "OrderedList": null }, "Timestamp": "Mon Aug 13 10:17:31 EDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_index.adm b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_index.adm
index efdf0bb..a639f96 100644
--- a/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_index.adm
+++ b/asterix-app/src/test/resources/metadata-transactions/check-state-results/check_index.adm
@@ -1,15 +1,15 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "FunctionName", "FunctionArity" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:31:59 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "Customers", "IndexStructure": "BTREE", "SearchKey": [ "cid", "name" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:32:04 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "custName", "IndexStructure": "BTREE", "SearchKey": [ "name", "cid" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:32:04 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "Orders", "IndexStructure": "BTREE", "SearchKey": [ "oid" ], "IsPrimary": true, "Timestamp": "Tue Feb 14 13:32:04 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordClerkTotal", "IndexStructure": "BTREE", "SearchKey": [ "clerk", "total" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:32:04 PST 2012" }
-{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordCustId", "IndexStructure": "BTREE", "SearchKey": [ "cid" ], "IsPrimary": false, "Timestamp": "Tue Feb 14 13:32:04 PST 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "Dataset", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName" ], "IsPrimary": true, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "IndexName": "GroupName", "IndexStructure": "BTREE", "SearchKey": [ "GroupName", "DataverseName", "DatasetName" ], "IsPrimary": false, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "Datatype", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatatypeName" ], "IsPrimary": true, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "IndexName": "DatatypeName", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "NestedDatatypeName", "TopDatatypeName" ], "IsPrimary": false, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "IndexName": "Dataverse", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName" ], "IsPrimary": true, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "IndexName": "Function", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "Name" ], "IsPrimary": true, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "IndexName": "Index", "IndexStructure": "BTREE", "SearchKey": [ "DataverseName", "DatasetName", "IndexName" ], "IsPrimary": true, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "IndexName": "Node", "IndexStructure": "BTREE", "SearchKey": [ "NodeName" ], "IsPrimary": true, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "IndexName": "Nodegroup", "IndexStructure": "BTREE", "SearchKey": [ "GroupName" ], "IsPrimary": true, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "Customers", "IndexStructure": "BTREE", "SearchKey": [ "cid", "name" ], "IsPrimary": true, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Customers", "IndexName": "custName", "IndexStructure": "BTREE", "SearchKey": [ "name", "cid" ], "IsPrimary": false, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "Orders", "IndexStructure": "BTREE", "SearchKey": [ "oid" ], "IsPrimary": true, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordClerkTotal", "IndexStructure": "BTREE", "SearchKey": [ "clerk", "total" ], "IsPrimary": false, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
+{ "DataverseName": "custord", "DatasetName": "Orders", "IndexName": "ordCustId", "IndexStructure": "BTREE", "SearchKey": [ "cid" ], "IsPrimary": false, "Timestamp": "Mon Aug 13 10:20:00 EDT 2012" }
diff --git a/asterix-app/src/test/resources/metadata/queries/metadata_dataset.aql b/asterix-app/src/test/resources/metadata/queries/metadata_dataset.aql
index 723e65c..e2a1f03 100644
--- a/asterix-app/src/test/resources/metadata/queries/metadata_dataset.aql
+++ b/asterix-app/src/test/resources/metadata/queries/metadata_dataset.aql
@@ -1,6 +1,6 @@
 use dataverse Metadata;
 
-write output to nc1:"rttest/metadata_dataset.adm";
+write output to nc1:"rttest/cross_dataverse_metadata_dataset.adm";
 
 for $c in dataset('Dataset')
 return $c
diff --git a/asterix-app/src/test/resources/metadata/results/metadata_dataset.adm b/asterix-app/src/test/resources/metadata/results/metadata_dataset.adm
index 85a8973..6ea405b 100644
--- a/asterix-app/src/test/resources/metadata/results/metadata_dataset.adm
+++ b/asterix-app/src/test/resources/metadata/results/metadata_dataset.adm
@@ -1,6 +1,7 @@
-{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Thu Sep 01 15:52:00 PDT 2011" }
-{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "Timestamp": "Tue Sep 06 09:29:34 PDT 2011" }
\ No newline at end of file
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 13:43:05 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 13:43:05 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 13:43:05 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 13:43:05 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 13:43:05 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 13:43:05 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 13:43:05 EDT 2012" }
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/create_datasets.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/create_datasets.aql
new file mode 100644
index 0000000..7eace79
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/create_datasets.aql
@@ -0,0 +1,18 @@
+write output to nc1:"rttest/cross-dataverse_create_datasets.adm";
+
+
+drop dataverse test1 if exists;
+drop dataverse test2 if exists;
+
+create dataverse test1;
+create dataverse test2;
+
+create dataset test1.Customer(customerType)
+partitioned by key cid;
+
+ 
+for $c in dataset('Metadata.Dataset')
+return $c
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset.aql b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset.aql
new file mode 100644
index 0000000..f8689b9
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/cross-dataverse/metadata_dataset.aql
@@ -0,0 +1,7 @@
+write output to nc1:"rttest/cross-dataverse_metadata_dataset.adm";
+
+for $c in dataset('Metadata.Dataset')
+return $c
+
+
+
diff --git a/asterix-app/src/test/resources/runtimets/results/cross-dataverse/metadata_dataset.adm b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/metadata_dataset.adm
new file mode 100644
index 0000000..301463b
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/cross-dataverse/metadata_dataset.adm
@@ -0,0 +1,7 @@
+{ "DataverseName": "Metadata", "DatasetName": "Dataset", "DataTypeName": "DatasetRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName" ], "PrimaryKey": [ "DataverseName", "DatasetName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 15:49:47 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Datatype", "DataTypeName": "DatatypeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatatypeName" ], "PrimaryKey": [ "DataverseName", "DatatypeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 15:49:47 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Dataverse", "DataTypeName": "DataverseRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName" ], "PrimaryKey": [ "DataverseName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 15:49:47 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Function", "DataTypeName": "FunctionRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "Name" ], "PrimaryKey": [ "DataverseName", "Name" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 15:49:47 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Index", "DataTypeName": "IndexRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "DataverseName", "DatasetName", "IndexName" ], "PrimaryKey": [ "DataverseName", "DatasetName", "IndexName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 15:49:47 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Node", "DataTypeName": "NodeRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "NodeName" ], "PrimaryKey": [ "NodeName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 15:49:47 EDT 2012" }
+{ "DataverseName": "Metadata", "DatasetName": "Nodegroup", "DataTypeName": "NodeGroupRecordType", "DatasetType": "INTERNAL", "InternalDetails": { "FileStructure": "BTREE", "PartitioningStrategy": "HASH", "PartitioningKey": [ "GroupName" ], "PrimaryKey": [ "GroupName" ], "GroupName": "MetadataGroup" }, "ExternalDetails": null, "FeedDetails": null, "Timestamp": "Wed Aug 15 15:49:47 EDT 2012" }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionSignatures.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionSignatures.java
index 1027c42..f346a18 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionSignatures.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/context/FunctionSignatures.java
@@ -22,7 +22,7 @@
     }
 
     public void put(AsterixFunction fd, boolean varargs) {
-        String name = fd.getFunctionName();
+        String name = fd.getName();
         FunctionExpressionMap func = functionMap.get(name);
         if (func == null) {
             func = new FunctionExpressionMap(varargs);
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java
index a142534..ee8d6e7 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/BeginFeedStatement.java
@@ -12,11 +12,13 @@
 
 public class BeginFeedStatement implements Statement {
 
-    private Identifier datasetName;
+    private final Identifier dataverseName;
+    private final Identifier datasetName;
     private Query query;
     private int varCounter;
 
-    public BeginFeedStatement(Identifier datasetName, int varCounter) {
+    public BeginFeedStatement(Identifier dataverseName, Identifier datasetName, int varCounter) {
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.varCounter = varCounter;
     }
@@ -42,6 +44,10 @@
         query = ((InsertStatement) query.getPrologDeclList().get(0)).getQuery();
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+    
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/ControlFeedStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/ControlFeedStatement.java
index 844fec6..4ceb0e3 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/ControlFeedStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/ControlFeedStatement.java
@@ -9,7 +9,8 @@
 
 public class ControlFeedStatement implements Statement {
 
-    private Identifier datasetName;
+    private final Identifier dataverseName;
+    private final Identifier datasetName;
 
     public enum OperationType {
         BEGIN,
@@ -22,18 +23,24 @@
     private OperationType operationType;
     private Map<String, String> alterAdapterConfParams;
 
-    public ControlFeedStatement(OperationType operation, Identifier datasetName) {
+    public ControlFeedStatement(OperationType operation, Identifier dataverseName, Identifier datasetName) {
         this.operationType = operation;
         this.datasetName = datasetName;
+        this.dataverseName = dataverseName;
     }
 
-    public ControlFeedStatement(OperationType operation, Identifier datasetName,
+    public ControlFeedStatement(OperationType operation, Identifier dataverseName, Identifier datasetName,
             Map<String, String> alterAdapterConfParams) {
         this.operationType = operation;
         this.datasetName = datasetName;
+        this.dataverseName = dataverseName;
         this.alterAdapterConfParams = alterAdapterConfParams;
     }
-    
+
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
@@ -54,7 +61,7 @@
     public Map<String, String> getAlterAdapterConfParams() {
         return alterAdapterConfParams;
     }
-    
+
     @Override
     public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg) throws AsterixException {
         return visitor.visitControlFeedStatement(this, arg);
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateFunctionStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateFunctionStatement.java
index 6ffd39d..fea4e00 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateFunctionStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateFunctionStatement.java
@@ -11,34 +11,21 @@
 
 public class CreateFunctionStatement implements Statement {
 
-    private AsterixFunction asterixFunction;
-    private String functionBody;
-    private boolean ifNotExists;
-    private List<String> paramList;
+    private final AsterixFunction asterixFunction;
+    private final String functionBody;
+    private final boolean ifNotExists;
+    private final List<String> paramList;
 
-    public AsterixFunction getFunctionIdentifier() {
+    public AsterixFunction getaAterixFunction() {
         return asterixFunction;
     }
 
-    public void setFunctionIdentifier(AsterixFunction AsterixFunction) {
-        this.asterixFunction = AsterixFunction;
-    }
-
     public String getFunctionBody() {
         return functionBody;
     }
 
-    public void setFunctionBody(String functionBody) {
-        this.functionBody = functionBody;
-    }
-
-    public void setIfNotExists(boolean ifNotExists) {
-        this.ifNotExists = ifNotExists;
-    }
-
-    public CreateFunctionStatement(AsterixFunction AsterixFunction, List<VarIdentifier> parameterList, String functionBody,
-            boolean ifNotExists) {
-        
+    public CreateFunctionStatement(AsterixFunction AsterixFunction, List<VarIdentifier> parameterList,
+            String functionBody, boolean ifNotExists) {
         this.asterixFunction = AsterixFunction;
         this.functionBody = functionBody;
         this.ifNotExists = ifNotExists;
@@ -61,10 +48,6 @@
         return paramList;
     }
 
-    public void setParamList(List<String> paramList) {
-        this.paramList = paramList;
-    }
-
     @Override
     public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg) throws AsterixException {
         return visitor.visit(this, arg);
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateIndexStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateIndexStatement.java
index ab75af5..ffd0534 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateIndexStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/CreateIndexStatement.java
@@ -13,6 +13,7 @@
 
     private Identifier indexName;
     private boolean needToCreate = true;
+    private Identifier dataverseName;
     private Identifier datasetName;
     private List<String> fieldExprs = new ArrayList<String>();
     private IndexType indexType = IndexType.BTREE;
@@ -48,6 +49,14 @@
         this.indexName = indexName;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
+    public void setDataverseName(Identifier dataverseName) {
+        this.dataverseName = dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DatasetDecl.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DatasetDecl.java
index 7996062..ac98c46 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DatasetDecl.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DatasetDecl.java
@@ -22,16 +22,20 @@
 
 public class DatasetDecl implements Statement {
     protected Identifier name;
+    protected Identifier dataverse;
     protected Identifier itemTypeName;
     protected DatasetType datasetType;
     protected IDatasetDetailsDecl datasetDetailsDecl;
 
     public boolean ifNotExists;
 
-    public DatasetDecl(Identifier name, Identifier itemTypeName, IDatasetDetailsDecl idd, boolean ifNotExists) {
+    public DatasetDecl(Identifier dataverse, Identifier name, Identifier itemTypeName, DatasetType datasetType,
+            IDatasetDetailsDecl idd, boolean ifNotExists) {
+        this.dataverse = dataverse;
         this.name = name;
         this.itemTypeName = itemTypeName;
         this.ifNotExists = ifNotExists;
+        this.datasetType = datasetType;
         datasetDetailsDecl = idd;
     }
 
@@ -39,10 +43,6 @@
         return this.ifNotExists;
     }
 
-    public void setDatasetType(DatasetType datasetType) {
-        this.datasetType = datasetType;
-    }
-
     public DatasetType getDatasetType() {
         return datasetType;
     }
@@ -51,18 +51,10 @@
         return name;
     }
 
-    public void setName(Identifier name) {
-        this.name = name;
-    }
-
     public Identifier getItemTypeName() {
         return itemTypeName;
     }
 
-    public void setItemTypeName(Identifier itemTypeName) {
-        this.itemTypeName = itemTypeName;
-    }
-
     @Override
     public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg) throws AsterixException {
         return visitor.visitDatasetDecl(this, arg);
@@ -82,7 +74,8 @@
         return datasetDetailsDecl;
     }
 
-    public void setDatasetDetailsDecl(IDatasetDetailsDecl datasetDetailsDecl) {
-        this.datasetDetailsDecl = datasetDetailsDecl;
+    public Identifier getDataverse() {
+        return dataverse;
     }
+
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DeleteStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DeleteStatement.java
index 9d957cf..48b7909 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DeleteStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DeleteStatement.java
@@ -10,14 +10,16 @@
 public class DeleteStatement implements Statement {
 
     private VariableExpr vars;
+    private Identifier dataverseName;
     private Identifier datasetName;
     private Expression condition;
     private Clause dieClause;
     private int varCounter;
 
-    public DeleteStatement(VariableExpr vars, Identifier datasetName, Expression condition, Clause dieClause,
-            int varCounter) {
+    public DeleteStatement(VariableExpr vars, Identifier dataverseName, Identifier datasetName, Expression condition,
+            Clause dieClause, int varCounter) {
         this.vars = vars;
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.condition = condition;
         this.dieClause = dieClause;
@@ -33,6 +35,10 @@
         return vars;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DropStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DropStatement.java
index 9ddec0e..76d952b 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DropStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/DropStatement.java
@@ -7,10 +7,12 @@
 
 public class DropStatement implements Statement {
 
-    private Identifier datasetName;
+    private final Identifier dataverseName;
+    private final Identifier datasetName;
     private boolean ifExists;
 
-    public DropStatement(Identifier datasetName, boolean ifExists) {
+    public DropStatement(Identifier dataverseName, Identifier datasetName, boolean ifExists) {
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.ifExists = ifExists;
     }
@@ -20,6 +22,10 @@
         return Kind.DATASET_DROP;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDropStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDropStatement.java
index 4b96143..eb8a9b8 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDropStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/FunctionDropStatement.java
@@ -4,16 +4,15 @@
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlExpressionVisitor;
 import edu.uci.ics.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.functions.AsterixFunction;
 
 public class FunctionDropStatement implements Statement {
 
-    private Identifier functionName;
-    private int arity;
+    private AsterixFunction asterixFunction;
     private boolean ifExists;
 
-    public FunctionDropStatement(Identifier functionName, int arity, boolean ifExists) {
-        this.functionName = functionName;
-        this.arity = arity;
+    public FunctionDropStatement(AsterixFunction asterixFunction, boolean ifExists) {
+        this.asterixFunction = asterixFunction;
         this.ifExists = ifExists;
     }
 
@@ -22,22 +21,14 @@
         return Kind.FUNCTION_DROP;
     }
 
-    public Identifier getFunctionName() {
-        return functionName;
+    public AsterixFunction getAsterixFunction() {
+        return asterixFunction;
     }
 
     public boolean getIfExists() {
         return ifExists;
     }
 
-    public int getArity() {
-        return arity;
-    }
-
-    public void setArity(int arity) {
-        this.arity = arity;
-    }
-
     @Override
     public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg) throws AsterixException {
         return visitor.visitFunctionDropStatement(this, arg);
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/IndexDropStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/IndexDropStatement.java
index b69ccd1..43831d0 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/IndexDropStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/IndexDropStatement.java
@@ -7,12 +7,14 @@
 
 public class IndexDropStatement implements Statement {
 
+    private Identifier dataverseName;
     private Identifier datasetName;
     private Identifier indexName;
     private boolean ifExists;
 
-    public IndexDropStatement(Identifier dataverseName, Identifier indexName, boolean ifExists) {
-        this.datasetName = dataverseName;
+    public IndexDropStatement(Identifier dataverseName, Identifier datasetName, Identifier indexName, boolean ifExists) {
+        this.dataverseName = dataverseName;
+        this.datasetName = datasetName;
         this.indexName = indexName;
         this.ifExists = ifExists;
     }
@@ -22,6 +24,10 @@
         return Kind.INDEX_DROP;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InsertStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InsertStatement.java
index 7faa33e..c7b1f6d 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InsertStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/InsertStatement.java
@@ -7,11 +7,13 @@
 
 public class InsertStatement implements Statement {
 
-    private Identifier datasetName;
-    private Query query;
-    private int varCounter;
+    private final Identifier dataverseName;
+    private final Identifier datasetName;
+    private final Query query;
+    private final int varCounter;
 
-    public InsertStatement(Identifier datasetName, Query query, int varCounter) {
+    public InsertStatement(Identifier dataverseName, Identifier datasetName, Query query, int varCounter) {
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.query = query;
         this.varCounter = varCounter;
@@ -22,6 +24,10 @@
         return Kind.INSERT;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LoadFromFileStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LoadFromFileStatement.java
index 011ee898..ecbdb42 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LoadFromFileStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/LoadFromFileStatement.java
@@ -10,12 +10,14 @@
 public class LoadFromFileStatement implements Statement {
 
     private Identifier datasetName;
+    private Identifier dataverseName;
     private String adapter;
     private Map<String, String> properties;
     private boolean dataIsLocallySorted;
 
-    public LoadFromFileStatement(Identifier datasetName, String adapter, Map<String, String> propertiees,
-            boolean dataIsLocallySorted) {
+    public LoadFromFileStatement(Identifier dataverseName, Identifier datasetName, String adapter,
+            Map<String, String> propertiees, boolean dataIsLocallySorted) {
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.adapter = adapter;
         this.properties = propertiees;
@@ -38,6 +40,14 @@
         this.properties = properties;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
+    public void setDataverseName(Identifier dataverseName) {
+        this.dataverseName = dataverseName;
+    }
+
     @Override
     public Kind getKind() {
         return Kind.LOAD_FROM_FILE;
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/WriteFromQueryResultStatement.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/WriteFromQueryResultStatement.java
index b45f5da..10a9bd6 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/WriteFromQueryResultStatement.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/WriteFromQueryResultStatement.java
@@ -7,12 +7,14 @@
 
 public class WriteFromQueryResultStatement implements Statement {
 
+    private Identifier dataverseName;
     private Identifier datasetName;
 
     private Query query;
     private int varCounter;
 
-    public WriteFromQueryResultStatement(Identifier datasetName, Query query, int varCounter) {
+    public WriteFromQueryResultStatement(Identifier dataverseName, Identifier datasetName, Query query, int varCounter) {
+        this.dataverseName = dataverseName;
         this.datasetName = datasetName;
         this.query = query;
         this.varCounter = varCounter;
@@ -23,6 +25,10 @@
         return Kind.WRITE_FROM_QUERY_RESULT;
     }
 
+    public Identifier getDataverseName() {
+        return dataverseName;
+    }
+
     public Identifier getDatasetName() {
         return datasetName;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java
index 1c681b1..d6d3f2e 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java
@@ -33,6 +33,7 @@
 import edu.uci.ics.asterix.aql.expression.IndexAccessor;
 import edu.uci.ics.asterix.aql.expression.IndexDropStatement;
 import edu.uci.ics.asterix.aql.expression.InsertStatement;
+import edu.uci.ics.asterix.aql.expression.InternalDetailsDecl;
 import edu.uci.ics.asterix.aql.expression.LetClause;
 import edu.uci.ics.asterix.aql.expression.LimitClause;
 import edu.uci.ics.asterix.aql.expression.ListConstructor;
@@ -67,7 +68,6 @@
 import edu.uci.ics.asterix.aql.expression.WriteStatement;
 import edu.uci.ics.asterix.common.config.DatasetConfig.DatasetType;
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.aql.expression.InternalDetailsDecl;
 
 public class AQLPrintVisitor implements IAqlVisitorWithVoidReturn<Integer> {
     // private int level =0;
@@ -294,7 +294,7 @@
 
     @Override
     public void visit(FunctionDecl fd, Integer step) throws AsterixException {
-        out.println(skip(step) + "FunctionDecl " + fd.getIdent().getFunctionName() + "(" + fd.getParamList().toString()
+        out.println(skip(step) + "FunctionDecl " + fd.getIdent().getName() + "(" + fd.getParamList().toString()
                 + ") {");
         fd.getFuncBody().accept(this, step + 1);
         out.println(skip(step) + "}");
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java
index 5171d5a..bac927c 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java
@@ -5,6 +5,7 @@
 import edu.uci.ics.asterix.aql.context.Scope;
 import edu.uci.ics.asterix.aql.expression.Identifier;
 import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.Counter;
 
 public abstract class ScopeChecker {
@@ -15,6 +16,12 @@
 
     protected Stack<Scope> forbiddenScopeStack = new Stack<Scope>();
 
+    protected String[] inputLines;
+
+    protected void setInput(String s) {
+        inputLines = s.split("\n");
+    }
+
     // Forbidden scopes are used to disallow, in a limit clause, variables
     // having the same name as a variable defined by the FLWOR in which that
     // limit clause appears.
@@ -137,4 +144,18 @@
         String stripped = s.substring(1, s.length() - 1);
         return stripped.replaceAll("\\\\" + q, "\\" + q);
     }
+
+    public String extractFragment(int beginLine, int beginColumn, int endLine, int endColumn) {
+        StringBuilder extract = new StringBuilder();
+        extract.append(inputLines[beginLine - 1].length() > 1 ? inputLines[beginLine - 1].substring(beginColumn + 1)
+                : "");
+        for (int i = beginLine + 1; i < endLine; i++) {
+            extract.append("\n");
+            extract.append(inputLines[i - 1]);
+        }
+        extract.append("\n");
+        extract.append(inputLines[endLine - 1].substring(0, endColumn - 1));
+        return extract.toString().trim();
+    }
+
 }
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 8f0a3ff..febbcb5 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
@@ -7,8 +7,8 @@
 
 import edu.uci.ics.asterix.aql.base.Clause;
 import edu.uci.ics.asterix.aql.base.Expression;
-import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.base.Expression.Kind;
+import edu.uci.ics.asterix.aql.base.Statement;
 import edu.uci.ics.asterix.aql.expression.BeginFeedStatement;
 import edu.uci.ics.asterix.aql.expression.CallExpr;
 import edu.uci.ics.asterix.aql.expression.ControlFeedStatement;
@@ -72,6 +72,7 @@
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.om.functions.AsterixBuiltinFunctions;
 import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.om.functions.FunctionSignature;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 
@@ -157,39 +158,57 @@
 
         List<AsterixFunction> functionCalls = getFunctionCalls(expression);
         for (AsterixFunction funId : functionCalls) {
-            if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-                    funId.getFunctionName()))) {
-                continue;
-            }
-
-            if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(
-                    AlgebricksBuiltinFunctions.ALGEBRICKS_NS, funId.getFunctionName()))) {
-                continue;
-            }
 
             if (declaredFunctions != null && declaredFunctions.contains(funId)) {
                 continue;
             }
 
-            FunctionDecl functionDecl = getFunctionDecl(funId);
-            if (functionDecls.contains(functionDecl)) {
-                throw new AsterixException(" Detected recursvity!");
+            FunctionDecl functionDecl = lookupUserDefinedFunctionDecl(funId);
+            if (functionDecl != null) {
+                if (functionDecls.contains(functionDecl)) {
+                    throw new AsterixException(" Detected recursvity!");
+                } else {
+                    functionDecls.add(functionDecl);
+                    buildOtherUdfs(functionDecl.getFuncBody(), functionDecls, declaredFunctions);
+                }
+            } else {
+                if (isBuiltinFunction(funId)) {
+                    continue;
+                } else {
+                    throw new AsterixException(" unknown function " + funId);
+                }
             }
-            functionDecls.add(functionDecl);
-            buildOtherUdfs(functionDecl.getFuncBody(), functionDecls, declaredFunctions);
         }
     }
 
-    private FunctionDecl getFunctionDecl(AsterixFunction funId) throws AsterixException {
-        Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, dataverseName, funId.getFunctionName(),
-                funId.getArity());
+    private FunctionDecl lookupUserDefinedFunctionDecl(AsterixFunction asterixFunction) throws AsterixException {
+        if (dataverseName == null) {
+            return null;
+        }
+        Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, new FunctionSignature(dataverseName,
+                asterixFunction.getName(), asterixFunction.getArity()));
         if (function == null) {
-            throw new AsterixException(" unknown function " + funId);
+            return null;
         }
         return FunctionUtils.getFunctionDecl(function);
 
     }
 
+    private boolean isBuiltinFunction(AsterixFunction asterixFunction) {
+        if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+                asterixFunction.getName(), asterixFunction.getArity()))) {
+            return true;
+        }
+
+        if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(new FunctionIdentifier(
+                AlgebricksBuiltinFunctions.ALGEBRICKS_NS, asterixFunction.getName(), asterixFunction.getArity()))) {
+            return true;
+        }
+
+        return false;
+
+    }
+
     private List<AsterixFunction> 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/java/edu/uci/ics/asterix/aql/util/FunctionUtils.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/util/FunctionUtils.java
index 1a30693..fc0016f 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/util/FunctionUtils.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/util/FunctionUtils.java
@@ -44,7 +44,7 @@
         List<VarIdentifier> varIdentifiers = new ArrayList<VarIdentifier>();
 
         StringBuilder builder = new StringBuilder();
-        builder.append(" declare function " + function.getFunctionName());
+        builder.append(" declare function " + function.getName().split("@")[0]);
         builder.append("(");
         for (String param : params) {
             VarIdentifier varId = new VarIdentifier(param);
@@ -52,7 +52,9 @@
             builder.append(param);
             builder.append(",");
         }
-        builder.delete(builder.length() - 1, builder.length());
+        if (params.size() > 0) {
+            builder.delete(builder.length() - 1, builder.length());
+        }
         builder.append(")");
         builder.append("{");
         builder.append(functionBody);
@@ -74,22 +76,22 @@
         return AsterixBuiltinFunctions.getAsterixFunctionInfo(fi);
     }
 
-    public static IFunctionInfo getFunctionInfo(MetadataTransactionContext mdTxnCtx, String dataverseName,
-            AsterixFunction asterixFunction) throws MetadataException {
-        FunctionIdentifier fid = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-                asterixFunction.getFunctionName(), asterixFunction.getArity());
-        IFunctionInfo finfo = AsterixBuiltinFunctions.getAsterixFunctionInfo(fid);
-        if (fid == null) {
-            fid = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, asterixFunction.getFunctionName(),
-                    asterixFunction.getArity());
-        }
-        if (fid == null) {
-            Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, dataverseName,
-                    asterixFunction.getFunctionName(), asterixFunction.getArity());
-            if (function != null) {
-                finfo = new AsterixFunctionInfo(dataverseName, asterixFunction);
-            }
-        }
-        return finfo; // could be null
-    }
+    /*
+      public static IFunctionInfo getFunctionInfo(MetadataTransactionContext mdTxnCtx, String dataverseName,
+              AsterixFunction asterixFunction) throws MetadataException {
+          FunctionIdentifier fid = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, asterixFunction.getName(),
+                  asterixFunction.getArity());
+          IFunctionInfo finfo = AsterixBuiltinFunctions.getAsterixFunctionInfo(fid);
+          if (fid == null) {
+              fid = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, asterixFunction.getName(),
+                      asterixFunction.getArity());
+          }
+          if (fid == null) {
+              Function function = MetadataManager.INSTANCE.getFunction(mdTxnCtx, dataverseName, asterixFunction);
+              if (function != null) {
+                  finfo = new AsterixFunctionInfo(dataverseName, asterixFunction);
+              }
+          }
+          return finfo; // could be null
+      }*/
 }
diff --git a/asterix-aql/src/main/javacc/AQL.jj b/asterix-aql/src/main/javacc/AQL.jj
index 9a47c77..014c822 100644
--- a/asterix-aql/src/main/javacc/AQL.jj
+++ b/asterix-aql/src/main/javacc/AQL.jj
@@ -41,6 +41,11 @@
 import edu.uci.ics.asterix.om.functions.AsterixFunction;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionAnnotation;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IndexedNLJoinExpressionAnnotation;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
+import edu.uci.ics.hyracks.algebricks.common.utils.Triple;
+
+
 
 
 public class AQLParser extends ScopeChecker {
@@ -92,6 +97,11 @@
        return s.substring(1).trim();
     }
 
+    public AQLParser(String s){
+		this(new StringReader(s));
+		super.setInput(s);
+	}
+	
 	public static void main(String args[]) throws ParseException, TokenMgrError, IOException, FileNotFoundException, AsterixException {
 			File file = new File(args[0]);
 			Reader fis = new BufferedReader(new InputStreamReader(new FileInputStream(file), "UTF-8"));
@@ -190,6 +200,10 @@
           	{
             		decls.add(DataverseDropStatement());
           	}
+          	| "function"
+          	{
+            		decls.add(FunctionDropStatement());
+          	}
         	)
           | "write" {
                        decls.add(WriteStatement());
@@ -206,26 +220,25 @@
           | "update" {
 	  		decls.add(UpdateStatement());		
 	  	    } 
-	  	  | "begin" "feed"  <IDENTIFIER> {
-	  	    Identifier datasetName = new Identifier(token.image); 
-	  	    decls.add(new BeginFeedStatement(datasetName, getVarCounter()));
+	  	  | "begin" "feed"  
+	  	      {
+                Pair<Identifier,Identifier> nameComponents = getDotSeparatedPair();
+                decls.add(new BeginFeedStatement(nameComponents.first, nameComponents.second, getVarCounter()));
+	  	      } ";"
+	  	      
+	  	  | "suspend" "feed"  
+	  	  	 {
+                decls.add(ControlFeedDeclaration(ControlFeedStatement.OperationType.SUSPEND));
+             } ";"
+	  	   | "resume" "feed"   {
+                decls.add(ControlFeedDeclaration(ControlFeedStatement.OperationType.RESUME));
 	  	   } ";"
-	  	  | "suspend" "feed"  <IDENTIFIER> {
-	  	    datasetName = new Identifier(token.image); 
-	  	    decls.add(new ControlFeedStatement(ControlFeedStatement.OperationType.SUSPEND, datasetName));
-	  	   } ";"
-	  	   | "resume" "feed"  <IDENTIFIER> {
-	  	    datasetName = new Identifier(token.image); 
-	  	    decls.add(new ControlFeedStatement(ControlFeedStatement.OperationType.RESUME, datasetName));
-	  	   } ";"
-	  	   | "end" "feed"  <IDENTIFIER> {
-	  	    datasetName = new Identifier(token.image); 
-	  	    decls.add(new ControlFeedStatement(ControlFeedStatement.OperationType.END, datasetName));
+	  	   | "end" "feed"   {
+	  	        decls.add(ControlFeedDeclaration(ControlFeedStatement.OperationType.END));
 	  	   } ";" 
-	  	   | "alter" "feed" <IDENTIFIER> {
-             datasetName = new Identifier(token.image);
-             decls.add(AlterFeedDeclaration(datasetName));
-           }             
+	  	   | "alter" "feed"  {
+      	        decls.add(AlterFeedDeclaration());
+           } ";"            
                                                      
         )*
         (query = Query())?
@@ -245,27 +258,42 @@
 
 InsertStatement InsertStatement() throws ParseException:
 {
+	Identifier dataverseName;
 	Identifier datasetName;
+	Pair<Identifier,Identifier> nameComponents = null;
 	Query query;
 }
 {
-   "into" <DATASET> <IDENTIFIER> { datasetName = new Identifier(token.image); }
-     		<LEFTPAREN> query = Query() <RIGHTPAREN> ";"
-   {return new InsertStatement(datasetName, query,  getVarCounter());}
+   "into" <DATASET>
+   
+   {
+    nameComponents = getDotSeparatedPair();
+    dataverseName = nameComponents.first;
+    datasetName = nameComponents.second;
+   }
+    
+    <LEFTPAREN> query = Query() <RIGHTPAREN> ";"
+   {return new InsertStatement(dataverseName, datasetName, query,  getVarCounter());}
 }
 
 DeleteStatement DeleteStatement() throws ParseException:
 {
 	VariableExpr var = null;
+    Identifier dataverseName;
     Identifier datasetName = null;
 	Expression condition = null;
 	Clause dieClause = null;
+	Pair<Identifier, Identifier> nameComponents;
 }
 {
    var = Variable() { getCurrentScope().addNewVarSymbolToScope(var.getVar());  }
-	    "from" <DATASET> <IDENTIFIER> { datasetName = new Identifier(token.image); }
-	    ("where" condition = Expression())?  (dieClause = DieClause())? ";"
-   {return new DeleteStatement(var, datasetName, condition,  dieClause, getVarCounter()); }
+   "from" 
+   <DATASET> 
+   { 
+	  nameComponents  = getDotSeparatedPair();
+   }
+   ("where" condition = Expression())?  (dieClause = DieClause())? ";"
+   {return new DeleteStatement(var, nameComponents.first, nameComponents.second, condition,  dieClause, getVarCounter()); }
 }
 
 UpdateStatement UpdateStatement() throws ParseException:
@@ -325,10 +353,10 @@
 {
   Identifier nodeName = null;
   String fileName = null;
-  Identifier datasetName = null;
   Statement stmt = null;
   Query query;
   String writerClass = null;
+  Pair<Identifier,Identifier> nameComponents = null;
 }
 {
   (( "output" "to" 
@@ -340,10 +368,15 @@
          } )
     |
    ( "into" 
-     <DATASET> <IDENTIFIER> { datasetName = new Identifier(token.image); }
+     <DATASET> 
+     
+      {
+       nameComponents = getDotSeparatedPair();
+      }
+     
      <LEFTPAREN> query = Query() <RIGHTPAREN>
      {
-        stmt = new WriteFromQueryResultStatement(datasetName, query, getVarCounter());
+        stmt = new WriteFromQueryResultStatement(nameComponents.first, nameComponents.second, query, getVarCounter());
      } ))  
         
     ";"
@@ -355,6 +388,7 @@
 CreateIndexStatement CreateIndexStatement() throws ParseException:
 {
   CreateIndexStatement cis = new CreateIndexStatement();
+  Pair<Identifier,Identifier> nameComponents = null;
 }
 {
   <IDENTIFIER> { cis.setIndexName(new Identifier(token.image)); }
@@ -365,7 +399,13 @@
     }
   )?
   "on"  
-  <IDENTIFIER> { cis.setDatasetName(new Identifier(token.image)); }
+  
+   {
+   nameComponents = getDotSeparatedPair();
+   cis.setDataverseName(nameComponents.first);
+   cis.setDatasetName(nameComponents.second);
+   }
+  
   <LEFTPAREN>
   	( <IDENTIFIER> { cis.addFieldExpr(token.image); } )
   	("," <IDENTIFIER> { cis.addFieldExpr(token.image); })*
@@ -406,14 +446,19 @@
 
 DropStatement DropStatement() throws ParseException :
 {
+  Identifier dataverseName = null;
   Identifier datasetName = null;
   boolean ifExists = false;
+  Pair<Identifier,Identifier> nameComponents=null;
 }
 {
-  < IDENTIFIER >
-  {
-    datasetName = new Identifier(token.image);
-  }
+   {
+   nameComponents = getDotSeparatedPair();
+   dataverseName = nameComponents.first;
+   datasetName = nameComponents.second;
+   }
+   
+   
   (
     "if exists"
     {
@@ -421,25 +466,27 @@
     }
   )? ";"
   {
-    return new DropStatement(datasetName, ifExists);
+    return new DropStatement(dataverseName, datasetName, ifExists);
   }
 }
 
 IndexDropStatement IndexDropStatement() throws ParseException :
 {
+  Identifier dataverseName = null;
   Identifier datasetName = null;
   Identifier indexName = null;
   boolean ifExists = false;
+  Triple<Identifier,Identifier,Identifier> nameComponents=null;
 }
 {
-  < IDENTIFIER >
+  
   {
-    datasetName = new Identifier(token.image);
-  }
-  "." < IDENTIFIER >
-  {
-    indexName = new Identifier(token.image);
-  }
+   nameComponents = getDotSeparatedTriple();
+   dataverseName = nameComponents.first;
+   datasetName = nameComponents.second;
+   indexName = nameComponents.third;
+   }
+  
   (
     "if exists"
     {
@@ -447,7 +494,7 @@
     }
   )? ";"
   {
-    return new IndexDropStatement(datasetName, indexName, ifExists);
+    return new IndexDropStatement(dataverseName, datasetName, indexName, ifExists);
   }
 }
 
@@ -543,16 +590,57 @@
   }
 }
 
+
+FunctionDropStatement FunctionDropStatement() throws ParseException :
+{
+  String functionName;
+  int arity=0;
+  boolean ifExists = false;
+}
+{
+  < IDENTIFIER >
+  {
+    functionName = token.image;
+  }
+   "@"
+  (<INTEGER_LITERAL>)? 
+  {  
+     Token t= getToken(0);
+	 arity = new Integer(t.image);
+  	 if( arity < 0 && arity != FunctionIdentifier.VARARGS){
+  	 	throw new ParseException(" invalid arity:" + arity);
+  	 } 
+  }
+  
+  (
+    "if exists"
+    {
+      ifExists = true;
+    }
+  )? ";"
+  {
+    return new FunctionDropStatement(new AsterixFunction(functionName, arity), ifExists);
+  }
+}
+
+
 LoadFromFileStatement LoadStatement() throws ParseException:
 {
+  Identifier dataverseName = null;
   Identifier datasetName = null;
   boolean alreadySorted = false;
   String adapterClassname;
   Map<String,String> properties;
+  Pair<Identifier,Identifier> nameComponents = null;
 }
 {
-   <DATASET> <IDENTIFIER> { datasetName = new Identifier(token.image); }
- 
+   <DATASET> 
+   {
+   nameComponents = getDotSeparatedPair();
+   dataverseName = nameComponents.first;
+   datasetName = nameComponents.second;
+   }
+   
    "using"
 
     <STRING_LITERAL>
@@ -570,7 +658,7 @@
         
   ";"
   {
-     return new LoadFromFileStatement(datasetName, adapterClassname, properties, alreadySorted);
+     return new LoadFromFileStatement(dataverseName, datasetName, adapterClassname, properties, alreadySorted);
   }   
 }
 
@@ -580,15 +668,21 @@
 {
   DatasetDecl dd = null;
   Identifier datasetName = null;
+  Identifier dataverseName = null;
   Identifier itemTypeName = null;
+  String nameComponentFirst = null;
+  String nameComponentSecond = null;
   boolean ifNotExists = false;
-  IDatasetDetailsDecl idd = null;
+  IDatasetDetailsDecl datasetDetails = null;
+  Pair<Identifier,Identifier> nameComponents = null;	
 }
 {
-  < IDENTIFIER >
   {
-    datasetName = new Identifier(token.image);
-  }
+   nameComponents = getDotSeparatedPair();
+   dataverseName = nameComponents.first;
+   datasetName = nameComponents.second;
+   }
+    
   (
     "if not exists"
     {
@@ -604,18 +698,16 @@
   )
   {
   	  if(datasetType == DatasetType.INTERNAL) {
-      	idd = InternalDatasetDeclaration();
-      	dd = new DatasetDecl(datasetName, itemTypeName, idd, ifNotExists);
+      	datasetDetails = InternalDatasetDeclaration();
       }
       else if(datasetType == DatasetType.EXTERNAL) {
-      	idd = ExternalDatasetDeclaration();
-      	dd = new DatasetDecl(datasetName, itemTypeName, idd,ifNotExists);
+      	datasetDetails = ExternalDatasetDeclaration();
       }
       else if(datasetType == DatasetType.FEED) {
-      	idd = FeedDatasetDeclaration();
-      	dd = new DatasetDecl(datasetName, itemTypeName, idd,ifNotExists);
+      	datasetDetails = FeedDatasetDeclaration();
       }
-      dd.setDatasetType(datasetType);
+      dd = new DatasetDecl(dataverseName, datasetName, itemTypeName, datasetType, datasetDetails,ifNotExists);
+      
   }
   {
     return dd;
@@ -741,20 +833,35 @@
   }
 }
 
-ControlFeedStatement AlterFeedDeclaration(Identifier datasetName) throws ParseException :
+ControlFeedStatement ControlFeedDeclaration(ControlFeedStatement.OperationType operationType) throws ParseException :
 {
-    String name = null;
-    String value = null;
+  Pair<Identifier,Identifier> nameComponents = null;
+}
+{
+    {
+    nameComponents = getDotSeparatedPair();
+    return new ControlFeedStatement(operationType, nameComponents.first, nameComponents.second);
+    }
+}
+
+
+ControlFeedStatement AlterFeedDeclaration() throws ParseException :
+{
+    Pair<Identifier,Identifier> nameComponents = null;
     Map < String, String > configuration = new HashMap < String, String > ();
 }
 {
+   {
+    nameComponents = getDotSeparatedPair();
+   }
+
    "set"
    { 
    configuration = getConfiguration();
    }
   ";"
   {
-    return new ControlFeedStatement(ControlFeedStatement.OperationType.ALTER, datasetName, configuration);
+    return new ControlFeedStatement(ControlFeedStatement.OperationType.ALTER, nameComponents.first, nameComponents.second, configuration);
   }
 }
 
@@ -1037,6 +1144,67 @@
   }
 }
 
+Pair<Identifier,Identifier> getDotSeparatedPair() throws ParseException:
+{
+ Identifier first = null;
+ Identifier second = null;
+}
+{
+  < IDENTIFIER >
+  {
+    first = new Identifier(token.image);
+  } 
+  ("." <IDENTIFIER>
+  {
+    second = new Identifier(token.image);
+  }
+  )?
+  
+  {
+   if(second == null){
+   	second = first;
+   	first = null;
+   } 
+   
+   return new Pair<Identifier,Identifier>(first,second);
+  }  
+}  
+  
+Triple<Identifier,Identifier,Identifier> getDotSeparatedTriple() throws ParseException:
+{
+ Identifier first = null;
+ Identifier second = null;
+ Identifier third = null;
+}
+{
+  < IDENTIFIER >
+  {
+    first = new Identifier(token.image);
+  } 
+  "." <IDENTIFIER>
+  {
+    second = new Identifier(token.image);
+  }
+  (
+  "." <IDENTIFIER>
+  {
+    third = new Identifier(token.image);
+  }
+  )?
+  
+  {
+   if(third == null){
+   	third  = second;
+   	second = first;
+   	first = null;
+   } 
+   
+   return new Triple<Identifier,Identifier,Identifier>(first,second,third);
+  }  
+}  
+
+
+  
 
 FunctionDecl FunctionDeclaration() throws ParseException:
 {
@@ -1074,7 +1242,7 @@
     })*)? <RIGHTPAREN> "{" funcBody = Expression() "}"
 
     {
-      ident = new AsterixFunction(functionName,arity);
+      ident = new AsterixFunction(functionName, arity);
       getCurrentScope().addFunctionDescriptor(ident, false);
       func.setIdent(ident);
       func.setFuncBody(funcBody);
@@ -1088,12 +1256,14 @@
   CreateFunctionStatement cfs = null;
   AsterixFunction ident;
   String functionName;
-  int arity = 0;
   boolean ifNotExists = false;
   List<VarIdentifier> paramList = new ArrayList<VarIdentifier>();
-  String funcBody;
+  String functionBody;
   VarIdentifier var = null;
   createNewScope();
+  Expression functionBodyExpr;
+  Token beginPos;
+  Token endPos;
 }
 {
 
@@ -1116,7 +1286,6 @@
       var.setValue(getToken(0).toString());
       paramList.add(var);
       getCurrentScope().addNewVarSymbolToScope(var);
-      arity++;
     }
     ("," <VARIABLE>
     {
@@ -1124,16 +1293,20 @@
       var.setValue(getToken(0).toString());
       paramList.add(var);
       getCurrentScope().addNewVarSymbolToScope(var);
-      arity++;
-    })*)? <RIGHTPAREN>  "{" <STRING_LITERAL>
+    })*)? <RIGHTPAREN>  "{"
           {
-            funcBody = removeQuotesAndEscapes(token.image);
-          }
+          beginPos = getToken(0);
+          } 
+          functionBodyExpr = Expression() 
           "}"
+          {
+            endPos = getToken(0);
+            functionBody = extractFragment(beginPos.beginLine, beginPos.beginColumn, endPos.beginLine, endPos.beginColumn);
+          }
     {
-      ident = new AsterixFunction(functionName, arity);
+      ident = new AsterixFunction(functionName, paramList.size());
       getCurrentScope().addFunctionDescriptor(ident, false);
-      cfs = new CreateFunctionStatement(ident, paramList, funcBody, ifNotExists);
+      cfs = new CreateFunctionStatement(ident, paramList, functionBody, ifNotExists);
       return cfs;
     }
 }
@@ -1762,13 +1935,14 @@
      } ("," tmp = Expression() { argList.add(tmp); arity++; })*)? <RIGHTPAREN>
 
      {       
-       AsterixFunction fd = lookupFunctionSignature(funcName.toString(), arity);
+       String functionName = funcName.toString();
+       AsterixFunction fd = lookupFunctionSignature(functionName, arity);
 	     if(fd == null)
 	     {
-	        fd = new AsterixFunction(funcName.toString(), arity);
+	        fd = new AsterixFunction(functionName, arity);
 //	     	notFoundFunctionList.add(fd);
 	     }
-//	     	throw new ParseException("can't find function "+ funcName.toString() + "@" + arity);
+//	     	throw new ParseException("can't find function "+ functionName);
        pf.setIdent(fd);
        pf.setExprList(argList);
        return pf;
@@ -2231,6 +2405,7 @@
 	<IDENTIFIER : (<LETTER>)+ (<LETTER> | <DIGIT> | <SPECIALCHARS>)*>
 }
 
+
 <DEFAULT>
 TOKEN :
 {
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/OptimizationConfUtil.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/OptimizationConfUtil.java
index 0a125b4..271f216 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/OptimizationConfUtil.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/OptimizationConfUtil.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.common.config;
 
-import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig; 
+import edu.uci.ics.hyracks.algebricks.core.rewriter.base.PhysicalOptimizationConfig;
 
 public class OptimizationConfUtil {
 
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java
index 44dab4c..bd84c39 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/HiveAdapter.java
@@ -19,7 +19,6 @@
 import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceReadAdapter;
 import edu.uci.ics.asterix.external.data.parser.IDataParser;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.hyracks.api.comm.IFrameWriter;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
 public class HiveAdapter extends AbstractDatasourceAdapter implements
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedIntakeOperatorNodePushable.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedIntakeOperatorNodePushable.java
index 4603208..b6e5b78 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedIntakeOperatorNodePushable.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/feed/operator/FeedIntakeOperatorNodePushable.java
@@ -5,16 +5,15 @@
 
 import edu.uci.ics.asterix.external.data.adapter.api.IDatasourceReadAdapter;
 import edu.uci.ics.asterix.external.data.parser.IManagedDataParser;
+import edu.uci.ics.asterix.feed.comm.AlterFeedMessage;
+import edu.uci.ics.asterix.feed.comm.IFeedMessage;
 import edu.uci.ics.asterix.feed.managed.adapter.IManagedFeedAdapter;
 import edu.uci.ics.asterix.feed.managed.adapter.IMutableFeedAdapter;
 import edu.uci.ics.asterix.feed.mgmt.FeedId;
 import edu.uci.ics.asterix.feed.mgmt.FeedSystemProvider;
 import edu.uci.ics.asterix.feed.mgmt.IFeedManager;
-import edu.uci.ics.asterix.feed.comm.AlterFeedMessage;
-import edu.uci.ics.asterix.feed.comm.IFeedMessage;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
-import edu.uci.ics.hyracks.dataflow.std.base.AbstractUnaryOutputSourceOperatorNodePushable;
 
 public class FeedIntakeOperatorNodePushable extends AbstractUnaryInputUnaryOutputOperatorNodePushable {
 
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 e205acf..42f7e45 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
@@ -26,7 +26,7 @@
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.asterix.om.functions.FunctionSignature;
 
 /**
  * Caches metadata entities such that the MetadataManager does not have to
@@ -44,7 +44,7 @@
     // Key is dataverse name.
     protected final Map<String, NodeGroup> nodeGroups = new HashMap<String, NodeGroup>();
     // Key is function Identifier . Key of value map is function name.
-    protected final Map<FunctionIdentifier, Function> functions = new HashMap<FunctionIdentifier, Function>();
+    protected final Map<FunctionSignature, Function> functions = new HashMap<FunctionSignature, Function>();
 
     // Atomically executes all metadata operations in ctx's log.
     public void commit(MetadataTransactionContext ctx) {
@@ -82,6 +82,7 @@
                             nodeGroups.clear();
                             datasets.clear();
                             datatypes.clear();
+                            functions.clear();
                         }
                     }
                 }
@@ -215,9 +216,9 @@
         }
     }
 
-    public Function getFunction(String dataverse, String functionName, int arity) {
+    public Function getFunction(FunctionSignature functionSignature) {
         synchronized (functions) {
-            return functions.get(new FunctionIdentifier(dataverse, functionName, arity));
+            return functions.get(functionSignature);
         }
     }
 
@@ -268,12 +269,11 @@
 
     public Object addFunctionIfNotExists(Function function) {
         synchronized (functions) {
-            FunctionIdentifier fId = new FunctionIdentifier(function.getDataverseName(), function.getFunctionName(),
-                    function.getFunctionArity());
-
-            Function fun = functions.get(fId);
+            FunctionSignature signature = new FunctionSignature(function.getDataverseName(),
+                    function.getName(), function.getParams().size());
+            Function fun = functions.get(signature);
             if (fun == null) {
-                return functions.put(fId, function);
+                return functions.put(signature, function);
             }
             return null;
         }
@@ -281,13 +281,13 @@
 
     public Object dropFunction(Function function) {
         synchronized (functions) {
-            FunctionIdentifier fId = new FunctionIdentifier(function.getDataverseName(), function.getFunctionName(),
-                    function.getFunctionArity());
-            Function fun = functions.get(fId);
+            FunctionSignature signature = new FunctionSignature(function.getDataverseName(),
+                    function.getName(), function.getParams().size());
+            Function fun = functions.get(signature);
             if (fun == null) {
                 return null;
             }
-            return functions.remove(fId);
+            return functions.remove(signature);
         }
     }
 }
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 bd4f9bb..d05799d 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
@@ -21,6 +21,7 @@
 import edu.uci.ics.asterix.metadata.api.IAsterixStateProxy;
 import edu.uci.ics.asterix.metadata.api.IMetadataManager;
 import edu.uci.ics.asterix.metadata.api.IMetadataNode;
+import edu.uci.ics.asterix.metadata.bootstrap.MetadataConstants;
 import edu.uci.ics.asterix.metadata.entities.Dataset;
 import edu.uci.ics.asterix.metadata.entities.Datatype;
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
@@ -28,6 +29,7 @@
 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.om.functions.FunctionSignature;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionIDFactory;
 
@@ -237,11 +239,13 @@
             // in the cache.
             return null;
         }
-        if (ctx.getDataverse(dataverseName) != null) {
+
+        if (!MetadataConstants.METADATA_DATAVERSE_NAME.equals(dataverseName) && ctx.getDataverse(dataverseName) != null) {
             // This transaction has dropped and subsequently created the same
             // dataverse.
             return null;
         }
+
         dataset = cache.getDataset(dataverseName, datasetName);
         if (dataset != null) {
             // Dataset is already in the cache, don't add it again.
@@ -309,11 +313,13 @@
             // in the cache.
             return null;
         }
-        if (ctx.getDataverse(dataverseName) != null) {
+
+        if (!MetadataConstants.METADATA_DATAVERSE_NAME.equals(dataverseName) && ctx.getDataverse(dataverseName) != null) {
             // This transaction has dropped and subsequently created the same
             // dataverse.
             return null;
         }
+
         datatype = cache.getDatatype(dataverseName, datatypeName);
         if (datatype != null) {
             // Datatype is already in the cache, don't add it again.
@@ -434,44 +440,43 @@
     }
 
     @Override
-    public void dropFunction(MetadataTransactionContext ctx, String dataverseName, String functionName, int arity)
+    public void dropFunction(MetadataTransactionContext ctx, FunctionSignature functionSignature)
             throws MetadataException {
         try {
-            metadataNode.dropFunction(ctx.getTxnId(), dataverseName, functionName, arity);
+            metadataNode.dropFunction(ctx.getTxnId(), functionSignature);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
-        ctx.dropFunction(dataverseName, functionName, arity);
     }
 
     @Override
-    public Function getFunction(MetadataTransactionContext ctx, String dataverseName, String functionName, int arity)
+    public Function getFunction(MetadataTransactionContext ctx, FunctionSignature functionSignature)
             throws MetadataException {
         // First look in the context to see if this transaction created the
         // requested dataset itself (but the dataset is still uncommitted).
-        Function function = ctx.getFunction(dataverseName, functionName, arity);
+        Function function = ctx.getFunction(functionSignature);
         if (function != null) {
             // Don't add this dataverse to the cache, since it is still
             // uncommitted.
             return function;
         }
-        if (ctx.functionIsDropped(dataverseName, functionName, arity)) {
-            // Dataset has been dropped by this transaction but could still be
+        if (ctx.functionIsDropped(functionSignature)) {
+            // Function has been dropped by this transaction but could still be
             // in the cache.
             return null;
         }
-        if (ctx.getDataverse(dataverseName) != null) {
+        if (ctx.getDataverse(functionSignature.getNamespace()) != null) {
             // This transaction has dropped and subsequently created the same
             // dataverse.
             return null;
         }
-        function = cache.getFunction(dataverseName, functionName, arity);
+        function = cache.getFunction(functionSignature);
         if (function != null) {
             // Function is already in the cache, don't add it again.
             return function;
         }
         try {
-            function = metadataNode.getFunction(ctx.getTxnId(), dataverseName, functionName, arity);
+            function = metadataNode.getFunction(ctx.getTxnId(), functionSignature);
         } catch (RemoteException e) {
             throw new MetadataException(e);
         }
@@ -483,4 +488,20 @@
         return function;
 
     }
+
+    @Override
+    public List<Function> getDataverseFunctions(MetadataTransactionContext ctx, String dataverseName)
+            throws MetadataException {
+        List<Function> dataverseFunctions;
+        try {
+            // Assuming that the transaction can read its own writes on the
+            // metadata node.
+            dataverseFunctions = metadataNode.getDataverseFunctions(ctx.getTxnId(), dataverseName);
+        } catch (RemoteException e) {
+            throw new MetadataException(e);
+        }
+        // Don't update the cache to avoid checking against the transaction's
+        // uncommitted functions.
+        return dataverseFunctions;
+    }
 }
\ No newline at end of file
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 591154a..4446684 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
@@ -51,6 +51,7 @@
 import edu.uci.ics.asterix.metadata.valueextractors.TupleCopyValueExtractor;
 import edu.uci.ics.asterix.om.base.AMutableString;
 import edu.uci.ics.asterix.om.base.AString;
+import edu.uci.ics.asterix.om.functions.FunctionSignature;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.service.transaction.TransactionContext;
@@ -236,8 +237,8 @@
             insertTupleIntoIndex(txnId, MetadataPrimaryIndexes.FUNCTION_DATASET, functionTuple);
 
         } catch (BTreeDuplicateKeyException e) {
-            throw new MetadataException("A dataset with this name " + function.getFunctionName() + " and arity "
-                    + function.getFunctionArity() + " already exists in dataverse '" + function.getDataverseName()
+            throw new MetadataException("A function with this name " + function.getName() + " and arity "
+                    + function.getParams().size() + " already exists in dataverse '" + function.getDataverseName()
                     + "'.", e);
         } catch (Exception e) {
             throw new MetadataException(e);
@@ -285,6 +286,18 @@
                     forceDropDatatype(txnId, dataverseName, dataverseDatatypes.get(i).getDatatypeName());
                 }
             }
+
+            // As a side effect, acquires an S lock on the 'function' dataset
+            // on behalf of txnId.
+            List<Function> dataverseFunctions = getDataverseFunctions(txnId, dataverseName);
+            if (dataverseFunctions != null && dataverseFunctions.size() > 0) {
+                // Drop all functions in this dataverse.
+                for (Function function : dataverseFunctions) {
+                    dropFunction(txnId, new FunctionSignature(dataverseName, function.getName(), function
+                            .getParams().size()));
+                }
+            }
+
             // Delete the dataverse entry from the 'dataverse' dataset.
             ITupleReference searchKey = createTuple(dataverseName);
             // As a side effect, acquires an S lock on the 'dataverse' dataset
@@ -701,10 +714,10 @@
     }
 
     @Override
-    public Function getFunction(long txnId, String dataverseName, String functionName, int arity)
-            throws MetadataException, RemoteException {
+    public Function getFunction(long txnId, FunctionSignature functionSignature) throws MetadataException,
+            RemoteException {
         try {
-            ITupleReference searchKey = createTuple(dataverseName, functionName, "" + arity);
+            ITupleReference searchKey = createTuple(functionSignature.getNamespace(), functionSignature.getName());
             FunctionTupleTranslator tupleReaderWriter = new FunctionTupleTranslator(false);
             List<Function> results = new ArrayList<Function>();
             IValueExtractor<Function> valueExtractor = new MetadataEntityValueExtractor<Function>(tupleReaderWriter);
@@ -714,26 +727,16 @@
             }
             return results.get(0);
         } catch (Exception e) {
+            e.printStackTrace();
             throw new MetadataException(e);
         }
     }
 
     @Override
-    public void dropFunction(long txnId, String dataverseName, String functionName, int arity)
-            throws MetadataException, RemoteException {
-        Function function;
-        try {
-            function = getFunction(txnId, dataverseName, functionName, arity);
-        } catch (Exception e) {
-            throw new MetadataException(e);
-        }
-        if (function == null) {
-            throw new MetadataException("Cannot drop function '" + functionName + " and arity " + arity
-                    + "' because it doesn't exist.");
-        }
+    public void dropFunction(long txnId, FunctionSignature functionSignature) throws MetadataException, RemoteException {
         try {
             // Delete entry from the 'function' dataset.
-            ITupleReference searchKey = createTuple(dataverseName, functionName, "" + arity);
+            ITupleReference searchKey = createTuple(functionSignature.getNamespace(), functionSignature.getName());
             // Searches the index for the tuple to be deleted. Acquires an S
             // lock on the 'function' dataset.
             ITupleReference datasetTuple = getTupleToBeDeleted(txnId, MetadataPrimaryIndexes.FUNCTION_DATASET,
@@ -743,8 +746,8 @@
             // TODO: Change this to be a BTree specific exception, e.g.,
             // BTreeKeyDoesNotExistException.
         } catch (TreeIndexException e) {
-            throw new MetadataException("Cannot drop function '" + functionName + " and arity " + arity
-                    + "' because it doesn't exist.", e);
+            throw new MetadataException("There is no function with the name " + functionSignature.getName()
+                    + " and arity " + functionSignature.getArity(), e);
         } catch (Exception e) {
             throw new MetadataException(e);
         }
@@ -812,4 +815,19 @@
         tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
         return tuple;
     }
+
+    @Override
+    public List<Function> getDataverseFunctions(long txnId, String dataverseName) throws MetadataException,
+            RemoteException {
+        try {
+            ITupleReference searchKey = createTuple(dataverseName);
+            FunctionTupleTranslator tupleReaderWriter = new FunctionTupleTranslator(false);
+            IValueExtractor<Function> valueExtractor = new MetadataEntityValueExtractor<Function>(tupleReaderWriter);
+            List<Function> results = new ArrayList<Function>();
+            searchIndex(txnId, MetadataPrimaryIndexes.FUNCTION_DATASET, searchKey, valueExtractor, results);
+            return results;
+        } catch (Exception e) {
+            throw new MetadataException(e);
+        }
+    }
 }
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 e0aa69b..461ba28 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
@@ -22,6 +22,8 @@
 import edu.uci.ics.asterix.metadata.entities.Dataverse;
 import edu.uci.ics.asterix.metadata.entities.Function;
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
+import edu.uci.ics.asterix.om.functions.AsterixFunction;
+import edu.uci.ics.asterix.om.functions.FunctionSignature;
 
 /**
  * Used to implement serializable transactions against the MetadataCache.
@@ -46,123 +48,118 @@
  */
 public class MetadataTransactionContext extends MetadataCache {
 
-	// Keeps track of deleted metadata entities.
-	// An entity can either be in the droppedCache or in the inherited members
-	// of MetadataCache (the "added" entities).
-	// The APIs in this class make sure that these two caches are kept in sync.
-	protected MetadataCache droppedCache = new MetadataCache();
+    // Keeps track of deleted metadata entities.
+    // An entity can either be in the droppedCache or in the inherited members
+    // of MetadataCache (the "added" entities).
+    // The APIs in this class make sure that these two caches are kept in sync.
+    protected MetadataCache droppedCache = new MetadataCache();
 
-	protected ArrayList<MetadataLogicalOperation> opLog = new ArrayList<MetadataLogicalOperation>();
-	private final long txnId;
+    protected ArrayList<MetadataLogicalOperation> opLog = new ArrayList<MetadataLogicalOperation>();
+    private final long txnId;
 
-	public MetadataTransactionContext(long txnId) {
-		this.txnId = txnId;
-	}
+    public MetadataTransactionContext(long txnId) {
+        this.txnId = txnId;
+    }
 
-	public long getTxnId() {
-		return txnId;
-	}
+    public long getTxnId() {
+        return txnId;
+    }
 
-	public void addDataverse(Dataverse dataverse) {
-		droppedCache.dropDataverse(dataverse);
-		logAndApply(new MetadataLogicalOperation(dataverse, true));
-	}
+    public void addDataverse(Dataverse dataverse) {
+        droppedCache.dropDataverse(dataverse);
+        logAndApply(new MetadataLogicalOperation(dataverse, true));
+    }
 
-	public void addDataset(Dataset dataset) {
-		droppedCache.dropDataset(dataset);
-		logAndApply(new MetadataLogicalOperation(dataset, true));
-	}
+    public void addDataset(Dataset dataset) {
+        droppedCache.dropDataset(dataset);
+        logAndApply(new MetadataLogicalOperation(dataset, true));
+    }
 
-	public void addDatatype(Datatype datatype) {
-		droppedCache.dropDatatype(datatype);
-		logAndApply(new MetadataLogicalOperation(datatype, true));
-	}
+    public void addDatatype(Datatype datatype) {
+        droppedCache.dropDatatype(datatype);
+        logAndApply(new MetadataLogicalOperation(datatype, true));
+    }
 
-	public void addNogeGroup(NodeGroup nodeGroup) {
-		droppedCache.dropNodeGroup(nodeGroup);
-		logAndApply(new MetadataLogicalOperation(nodeGroup, true));
-	}
+    public void addNogeGroup(NodeGroup nodeGroup) {
+        droppedCache.dropNodeGroup(nodeGroup);
+        logAndApply(new MetadataLogicalOperation(nodeGroup, true));
+    }
 
-	public void addFunction(Function function) {
-		droppedCache.dropFunction(function);
-		logAndApply(new MetadataLogicalOperation(function, true));
-	}
+    public void addFunction(Function function) {
+        droppedCache.dropFunction(function);
+        logAndApply(new MetadataLogicalOperation(function, true));
+    }
 
-	public void dropDataverse(String dataverseName) {
-		Dataverse dataverse = new Dataverse(dataverseName, null);
-		droppedCache.addDataverseIfNotExists(dataverse);
-		logAndApply(new MetadataLogicalOperation(dataverse, false));
-	}
+    public void dropDataverse(String dataverseName) {
+        Dataverse dataverse = new Dataverse(dataverseName, null);
+        droppedCache.addDataverseIfNotExists(dataverse);
+        logAndApply(new MetadataLogicalOperation(dataverse, false));
+    }
 
-	public void dropDataset(String dataverseName, String datasetName) {
-		Dataset dataset = new Dataset(dataverseName, datasetName, null, null,
-				null);
-		droppedCache.addDatasetIfNotExists(dataset);
-		logAndApply(new MetadataLogicalOperation(dataset, false));
-	}
+    public void dropDataset(String dataverseName, String datasetName) {
+        Dataset dataset = new Dataset(dataverseName, datasetName, null, null, null);
+        droppedCache.addDatasetIfNotExists(dataset);
+        logAndApply(new MetadataLogicalOperation(dataset, false));
+    }
 
-	public void dropDataDatatype(String dataverseName, String datatypeName) {
-		Datatype datatype = new Datatype(dataverseName, datatypeName, null,
-				false);
-		droppedCache.addDatatypeIfNotExists(datatype);
-		logAndApply(new MetadataLogicalOperation(datatype, false));
-	}
+    public void dropDataDatatype(String dataverseName, String datatypeName) {
+        Datatype datatype = new Datatype(dataverseName, datatypeName, null, false);
+        droppedCache.addDatatypeIfNotExists(datatype);
+        logAndApply(new MetadataLogicalOperation(datatype, false));
+    }
 
-	public void dropNodeGroup(String nodeGroupName) {
-		NodeGroup nodeGroup = new NodeGroup(nodeGroupName, null);
-		droppedCache.addNodeGroupIfNotExists(nodeGroup);
-		logAndApply(new MetadataLogicalOperation(nodeGroup, false));
-	}
+    public void dropNodeGroup(String nodeGroupName) {
+        NodeGroup nodeGroup = new NodeGroup(nodeGroupName, null);
+        droppedCache.addNodeGroupIfNotExists(nodeGroup);
+        logAndApply(new MetadataLogicalOperation(nodeGroup, false));
+    }
 
-	public void dropFunction(String dataverseName, String functionName,
-			int arity) {
-		Function function = new Function(dataverseName, functionName, arity,
-				null, null);
-		droppedCache.addFunctionIfNotExists(function);
-		logAndApply(new MetadataLogicalOperation(function, false));
-	}
+    public void dropFunction(String dataverseName, AsterixFunction asterixFunction) {
+        Function function = new Function(dataverseName, asterixFunction.getName(), asterixFunction.getArity(), null,
+                null, null, null, null);
+        droppedCache.addFunctionIfNotExists(function);
+        logAndApply(new MetadataLogicalOperation(function, false));
+    }
 
-	public void logAndApply(MetadataLogicalOperation op) {
-		opLog.add(op);
-		doOperation(op);
-	}
+    public void logAndApply(MetadataLogicalOperation op) {
+        opLog.add(op);
+        doOperation(op);
+    }
 
-	public boolean dataverseIsDropped(String dataverseName) {
-		return droppedCache.getDataverse(dataverseName) != null;
-	}
+    public boolean dataverseIsDropped(String dataverseName) {
+        return droppedCache.getDataverse(dataverseName) != null;
+    }
 
-	public boolean datasetIsDropped(String dataverseName, String datasetName) {
-		if (droppedCache.getDataverse(dataverseName) != null) {
-			return true;
-		}
-		return droppedCache.getDataset(dataverseName, datasetName) != null;
-	}
+    public boolean datasetIsDropped(String dataverseName, String datasetName) {
+        if (droppedCache.getDataverse(dataverseName) != null) {
+            return true;
+        }
+        return droppedCache.getDataset(dataverseName, datasetName) != null;
+    }
 
-	public boolean datatypeIsDropped(String dataverseName, String datatypeName) {
-		if (droppedCache.getDataverse(dataverseName) != null) {
-			return true;
-		}
-		return droppedCache.getDatatype(dataverseName, datatypeName) != null;
-	}
+    public boolean datatypeIsDropped(String dataverseName, String datatypeName) {
+        if (droppedCache.getDataverse(dataverseName) != null) {
+            return true;
+        }
+        return droppedCache.getDatatype(dataverseName, datatypeName) != null;
+    }
 
-	public boolean nodeGroupIsDropped(String nodeGroup) {
-		return droppedCache.getNodeGroup(nodeGroup) != null;
-	}
+    public boolean nodeGroupIsDropped(String nodeGroup) {
+        return droppedCache.getNodeGroup(nodeGroup) != null;
+    }
 
+    public boolean functionIsDropped(FunctionSignature functionSignature) {
+        return droppedCache.getFunction(functionSignature) != null;
+    }
 
-	public boolean functionIsDropped(String dataverseName, String functionName,
-			int arity) {
-		return droppedCache.getFunction(dataverseName, functionName, arity) != null;
-	}
-	
-	public ArrayList<MetadataLogicalOperation> getOpLog() {
-		return opLog;
-	}
+    public ArrayList<MetadataLogicalOperation> getOpLog() {
+        return opLog;
+    }
 
-	@Override
-	public void clear() {
-		super.clear();
-		droppedCache.clear();
-		opLog.clear();
-	}
+    @Override
+    public void clear() {
+        super.clear();
+        droppedCache.clear();
+        opLog.clear();
+    }
 }
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 adba1c2..5a0d165 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
@@ -27,6 +27,7 @@
 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.om.functions.FunctionSignature;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 
 /**
@@ -352,49 +353,46 @@
      *             For example, if the node already exists.
      */
     public void addNode(MetadataTransactionContext ctx, Node node) throws MetadataException;
-    
+
     /**
-	 * 
-	 * @param mdTxnCtx
-	 *            MetadataTransactionContext of an active metadata transaction.
-	 * @param function
-	 *            An instance of type Function that represents the function
-	 *            being added
-	 * @throws MetadataException
-	 */
-	public void addFunction(MetadataTransactionContext mdTxnCtx,
-			Function function) throws MetadataException;
+     * @param mdTxnCtx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param function
+     *            An instance of type Function that represents the function
+     *            being added
+     * @throws MetadataException
+     */
+    public void addFunction(MetadataTransactionContext mdTxnCtx, Function function) throws MetadataException;
 
-	/**
-	 * 
-	 * @param ctx
-	 *            MetadataTransactionContext of an active metadata transaction.
-	 * @param dataverseName
-	 *            the dataverse associated with the function being searched
-	 * @param functionName
-	 *            name of the function
-	 * @param arity
-	 *            arity of the function
-	 * @return
-	 * @throws MetadataException
-	 */
-	public Function getFunction(MetadataTransactionContext ctx,
-			String dataverseName, String functionName, int arity)
-			throws MetadataException;
+    /**
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param functionSignature
+     *            the functions signature (unique to the function)
+     * @return
+     * @throws MetadataException
+     */
 
-	/**
-	 * 
-	 * @param ctx
-	 *            MetadataTransactionContext of an active metadata transaction.
-	 * @param dataverseName
-	 *            the dataverse associated with the function being dropped
-	 * @param functionName
-	 *            name of the function
-	 * @param arity
-	 *            arity of the function
-	 * @throws MetadataException
-	 */
-	public void dropFunction(MetadataTransactionContext ctx,
-			String dataverseName, String functionName, int arity)
-			throws MetadataException;
+    public Function getFunction(MetadataTransactionContext ctx, FunctionSignature functionSignature)
+            throws MetadataException;
+
+    /**
+     * @param ctx
+     *            MetadataTransactionContext of an active metadata transaction.
+     * @param functionSignature
+     *            the functions signature (unique to the function)
+     * @throws MetadataException
+     */
+    public void dropFunction(MetadataTransactionContext ctx, FunctionSignature functionSignature)
+            throws MetadataException;
+
+    /**
+     * @param ctx
+     * @param dataverseName
+     * @return
+     * @throws MetadataException
+     */
+    public List<Function> getDataverseFunctions(MetadataTransactionContext ctx, String dataverseName)
+            throws MetadataException;
+
 }
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 10555be..7018135 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
@@ -28,6 +28,7 @@
 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.om.functions.FunctionSignature;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 
 /**
@@ -365,57 +366,55 @@
      * @throws RemoteException
      */
     public void addNode(long txnId, Node node) throws MetadataException, RemoteException;
-    
+
     /**
-	 * 
-	 * @param txnId
-	 *            A globally unique id for an active metadata transaction.
-	 * @param dataverseName
-	 *            dataverse asociated with the function that is to be deleted.
-	 * @param functionName
-	 *            Name of function to be deleted.
-	 * @param arity
-	 *            Arity of the function to be deleted
-	 * @return
-	 * @throws MetadataException
-	 * @throws RemoteException
-	 */
-	public Function getFunction(long txnId, String dataverseName,
-			String functionName, int arity) throws MetadataException,
-			RemoteException;
+     * @param txnId
+     *            A globally unique id for an active metadata transaction.
+     * @param functionSignature
+     *           An instance of functionSignature representing the function 
+     * @return
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public Function getFunction(long txnId, FunctionSignature functionSignature)
+            throws MetadataException, RemoteException;
 
-	/**
-	 * Deletes a function , acquiring local locks on behalf of the given
-	 * transaction id.
-	 * 
-	 * @param txnId
-	 *            A globally unique id for an active metadata transaction.
-	 * @param dataverseName
-	 *            dataverse asociated with the function that is to be deleted.
-	 * @param functionName
-	 *            Name of function to be deleted.
-	 * @param arity
-	 *            Arity of the function to be deleted
-	 * @throws MetadataException
-	 *             For example, there are still datasets partitioned on the node
-	 *             group to be deleted.
-	 * @throws RemoteException
-	 */
-	public void dropFunction(long txnId, String dataverseName,
-			String functionName, int arity) throws MetadataException,
-			RemoteException;
+    /**
+     * Deletes a function , acquiring local locks on behalf of the given
+     * transaction id.
+     * 
+     * @param txnId
+     *            A globally unique id for an active metadata transaction.
+     * @param functionSignature
+     *           An instance of functionSignature representing the function 
+     * @throws MetadataException
+     *             For example, there are still datasets partitioned on the node
+     *             group to be deleted.
+     * @throws RemoteException
+     */
+    public void dropFunction(long txnId,  FunctionSignature functionSignature)
+            throws MetadataException, RemoteException;
 
-	/**
-	 * 
-	 * @param txnId
-	 *            A globally unique id for an active metadata transaction.
-	 * @param function
-	 *            Function to be inserted
-	 * @throws MetadataException
-	 *             for example, if the function already exists or refers to an
-	 *             unknown function
-	 * @throws RemoteException
-	 */
-	public void addFunction(long txnId, Function function)
-			throws MetadataException, RemoteException;
+    /**
+     * @param txnId
+     *            A globally unique id for an active metadata transaction.
+     * @param function
+     *            Function to be inserted
+     * @throws MetadataException
+     *             for example, if the function already exists or refers to an
+     *             unknown function
+     * @throws RemoteException
+     */
+    public void addFunction(long txnId, Function function) throws MetadataException, RemoteException;
+
+    /**
+     * 
+     * @param ctx
+     * @param dataverseName
+     * @return
+     * @throws MetadataException
+     * @throws RemoteException
+     */
+    public List<Function> getDataverseFunctions(long txnId, String dataverseName)
+            throws MetadataException, RemoteException;
 }
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 6c388c2..5642e43 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
@@ -42,6 +42,7 @@
 import edu.uci.ics.asterix.metadata.entities.NodeGroup;
 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.TransactionalResourceRepository;
 import edu.uci.ics.asterix.transaction.management.service.logging.DataUtil;
@@ -230,7 +231,7 @@
 
     public static void insertInitialDataverses(MetadataTransactionContext mdTxnCtx) throws Exception {
         String dataverseName = MetadataPrimaryIndexes.DATAVERSE_DATASET.getDataverseName();
-        String dataFormat = "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat";
+        String dataFormat = NonTaggedDataFormat.NON_TAGGED_DATA_FORMAT;
         MetadataManager.INSTANCE.addDataverse(mdTxnCtx, new Dataverse(dataverseName, dataFormat));
     }
 
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 165a605..5fcac2e 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
@@ -30,7 +30,6 @@
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
 import edu.uci.ics.asterix.transaction.management.service.logging.DataUtil;
 import edu.uci.ics.asterix.transaction.management.service.logging.TreeLogger;
-import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder.OrderKind;
 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;
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 2a40e73..09a2d9e 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
@@ -33,7 +33,6 @@
     public static IMetadataIndex NODEGROUP_DATASET;
     public static IMetadataIndex FUNCTION_DATASET;
 
-
     /**
      * Create all metadata primary index descriptors. MetadataRecordTypes must
      * have been initialized before calling this init.
@@ -68,11 +67,10 @@
 
         NODEGROUP_DATASET = new MetadataIndex("Nodegroup", null, 2, new IAType[] { BuiltinType.ASTRING },
                 new String[] { "GroupName" }, MetadataRecordTypes.NODEGROUP_RECORDTYPE);
-        
-        FUNCTION_DATASET = new MetadataIndex("Function", null, 4,
-				new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING,
-						BuiltinType.ASTRING }, new String[] { "DataverseName",
-                        "FunctionName", "FunctionArity" }, MetadataRecordTypes.FUNCTION_RECORDTYPE);
+
+        FUNCTION_DATASET = new MetadataIndex("Function", null, 4, new IAType[] { BuiltinType.ASTRING,
+                BuiltinType.ASTRING, BuiltinType.ASTRING }, new String[] { "DataverseName", "Name", "Arity" },
+                MetadataRecordTypes.FUNCTION_RECORDTYPE);
 
     }
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java
index 6936d0d..8bbad88 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataRecordTypes.java
@@ -29,322 +29,296 @@
  * Contains static ARecordType's of all metadata record types.
  */
 public final class MetadataRecordTypes {
-	public static ARecordType DATAVERSE_RECORDTYPE;
-	public static ARecordType DATASET_RECORDTYPE;
-	public static ARecordType INTERNAL_DETAILS_RECORDTYPE;
-	public static ARecordType EXTERNAL_DETAILS_RECORDTYPE;
-	public static ARecordType FEED_DETAILS_RECORDTYPE;
-	public static ARecordType ADAPTER_PROPERTIES_RECORDTYPE;
-	public static ARecordType FIELD_RECORDTYPE;
-	public static ARecordType RECORD_RECORDTYPE;
-	public static ARecordType DERIVEDTYPE_RECORDTYPE;
-	public static ARecordType DATATYPE_RECORDTYPE;
-	public static ARecordType INDEX_RECORDTYPE;
-	public static ARecordType NODE_RECORDTYPE;
-	public static ARecordType NODEGROUP_RECORDTYPE;
-	public static ARecordType FUNCTION_RECORDTYPE;
+    public static ARecordType DATAVERSE_RECORDTYPE;
+    public static ARecordType DATASET_RECORDTYPE;
+    public static ARecordType INTERNAL_DETAILS_RECORDTYPE;
+    public static ARecordType EXTERNAL_DETAILS_RECORDTYPE;
+    public static ARecordType FEED_DETAILS_RECORDTYPE;
+    public static ARecordType ADAPTER_PROPERTIES_RECORDTYPE;
+    public static ARecordType FIELD_RECORDTYPE;
+    public static ARecordType RECORD_RECORDTYPE;
+    public static ARecordType DERIVEDTYPE_RECORDTYPE;
+    public static ARecordType DATATYPE_RECORDTYPE;
+    public static ARecordType INDEX_RECORDTYPE;
+    public static ARecordType NODE_RECORDTYPE;
+    public static ARecordType NODEGROUP_RECORDTYPE;
+    public static ARecordType FUNCTION_RECORDTYPE;
 
-	/**
-	 * Create all metadata record types.
-	 */
-	public static void init() {
-		// Attention: The order of these calls is important because some types
-		// depend on other types being created first.
-		// These calls are one "dependency chain".
-		ADAPTER_PROPERTIES_RECORDTYPE = createAdapterPropertiesRecordType();
-		INTERNAL_DETAILS_RECORDTYPE = createInternalDetailsRecordType();
-		EXTERNAL_DETAILS_RECORDTYPE = createExternalDetailsRecordType();
-		FEED_DETAILS_RECORDTYPE = createFeedDetailsRecordType();
+    /**
+     * Create all metadata record types.
+     */
+    public static void init() {
+        // Attention: The order of these calls is important because some types
+        // depend on other types being created first.
+        // These calls are one "dependency chain".
+        ADAPTER_PROPERTIES_RECORDTYPE = createAdapterPropertiesRecordType();
+        INTERNAL_DETAILS_RECORDTYPE = createInternalDetailsRecordType();
+        EXTERNAL_DETAILS_RECORDTYPE = createExternalDetailsRecordType();
+        FEED_DETAILS_RECORDTYPE = createFeedDetailsRecordType();
 
-		DATASET_RECORDTYPE = createDatasetRecordType();
+        DATASET_RECORDTYPE = createDatasetRecordType();
 
-		// Starting another dependency chain.
-		FIELD_RECORDTYPE = createFieldRecordType();
-		RECORD_RECORDTYPE = createRecordTypeRecordType();
-		DERIVEDTYPE_RECORDTYPE = createDerivedTypeRecordType();
-		DATATYPE_RECORDTYPE = createDatatypeRecordType();
+        // Starting another dependency chain.
+        FIELD_RECORDTYPE = createFieldRecordType();
+        RECORD_RECORDTYPE = createRecordTypeRecordType();
+        DERIVEDTYPE_RECORDTYPE = createDerivedTypeRecordType();
+        DATATYPE_RECORDTYPE = createDatatypeRecordType();
 
-		// Independent of any other types.
-		DATAVERSE_RECORDTYPE = createDataverseRecordType();
-		INDEX_RECORDTYPE = createIndexRecordType();
-		NODE_RECORDTYPE = createNodeRecordType();
-		NODEGROUP_RECORDTYPE = createNodeGroupRecordType();
-		FUNCTION_RECORDTYPE = createFunctionRecordType();
+        // Independent of any other types.
+        DATAVERSE_RECORDTYPE = createDataverseRecordType();
+        INDEX_RECORDTYPE = createIndexRecordType();
+        NODE_RECORDTYPE = createNodeRecordType();
+        NODEGROUP_RECORDTYPE = createNodeGroupRecordType();
+        FUNCTION_RECORDTYPE = createFunctionRecordType();
 
-	}
+    }
 
-	// Helper constants for accessing fields in an ARecord of type
-	// DataverseRecordType.
-	public static final int DATAVERSE_ARECORD_NAME_FIELD_INDEX = 0;
-	public static final int DATAVERSE_ARECORD_FORMAT_FIELD_INDEX = 1;
-	public static final int DATAVERSE_ARECORD_TIMESTAMP_FIELD_INDEX = 2;
+    // Helper constants for accessing fields in an ARecord of type
+    // DataverseRecordType.
+    public static final int DATAVERSE_ARECORD_NAME_FIELD_INDEX = 0;
+    public static final int DATAVERSE_ARECORD_FORMAT_FIELD_INDEX = 1;
+    public static final int DATAVERSE_ARECORD_TIMESTAMP_FIELD_INDEX = 2;
 
-	private static final ARecordType createDataverseRecordType() {
-		return new ARecordType("DataverseRecordType", new String[] {
-				"DataverseName", "DataFormat", "Timestamp" },
-				new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING,
-						BuiltinType.ASTRING }, true);
-	}
+    private static final ARecordType createDataverseRecordType() {
+        return new ARecordType("DataverseRecordType", new String[] { "DataverseName", "DataFormat", "Timestamp" },
+                new IAType[] { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING }, true);
+    }
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// external properties.
-	public static final int ADAPTER_PROPERTIES_ARECORD_NAME_FIELD_INDEX = 0;
-	public static final int ADAPTER_PROPERTIES_ARECORD_VALUE_FIELD_INDEX = 1;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // external properties.
+    public static final int ADAPTER_PROPERTIES_ARECORD_NAME_FIELD_INDEX = 0;
+    public static final int ADAPTER_PROPERTIES_ARECORD_VALUE_FIELD_INDEX = 1;
 
-	private static final ARecordType createAdapterPropertiesRecordType() {
-		String[] fieldNames = { "Name", "Value" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	};
+    private static final ARecordType createAdapterPropertiesRecordType() {
+        String[] fieldNames = { "Name", "Value" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// internal details.
-	public static final int INTERNAL_DETAILS_ARECORD_FILESTRUCTURE_FIELD_INDEX = 0;
-	public static final int INTERNAL_DETAILS_ARECORD_PARTITIONSTRATEGY_FIELD_INDEX = 1;
-	public static final int INTERNAL_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX = 2;
-	public static final int INTERNAL_DETAILS_ARECORD_PRIMARYKEY_FIELD_INDEX = 3;
-	public static final int INTERNAL_DETAILS_ARECORD_GROUPNAME_FIELD_INDEX = 4;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // internal details.
+    public static final int INTERNAL_DETAILS_ARECORD_FILESTRUCTURE_FIELD_INDEX = 0;
+    public static final int INTERNAL_DETAILS_ARECORD_PARTITIONSTRATEGY_FIELD_INDEX = 1;
+    public static final int INTERNAL_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX = 2;
+    public static final int INTERNAL_DETAILS_ARECORD_PRIMARYKEY_FIELD_INDEX = 3;
+    public static final int INTERNAL_DETAILS_ARECORD_GROUPNAME_FIELD_INDEX = 4;
 
-	private static final ARecordType createInternalDetailsRecordType() {
-		AOrderedListType olType = new AOrderedListType(BuiltinType.ASTRING,
-				null);
-		String[] fieldNames = { "FileStructure", "PartitioningStrategy",
-				"PartitioningKey", "PrimaryKey", "GroupName" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				olType, olType, BuiltinType.ASTRING };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	}
+    private static final ARecordType createInternalDetailsRecordType() {
+        AOrderedListType olType = new AOrderedListType(BuiltinType.ASTRING, null);
+        String[] fieldNames = { "FileStructure", "PartitioningStrategy", "PartitioningKey", "PrimaryKey", "GroupName" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, olType, olType, BuiltinType.ASTRING };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    }
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// external details.
-	public static final int EXTERNAL_DETAILS_ARECORD_ADAPTER_FIELD_INDEX = 0;
-	public static final int EXTERNAL_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX = 1;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // external details.
+    public static final int EXTERNAL_DETAILS_ARECORD_ADAPTER_FIELD_INDEX = 0;
+    public static final int EXTERNAL_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX = 1;
 
-	private static final ARecordType createExternalDetailsRecordType() {
+    private static final ARecordType createExternalDetailsRecordType() {
 
-		AOrderedListType orderedPropertyListType = new AOrderedListType(
-				ADAPTER_PROPERTIES_RECORDTYPE, null);
-		String[] fieldNames = { "Adapter", "Properties" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, orderedPropertyListType };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	}
+        AOrderedListType orderedPropertyListType = new AOrderedListType(ADAPTER_PROPERTIES_RECORDTYPE, null);
+        String[] fieldNames = { "Adapter", "Properties" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, orderedPropertyListType };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    }
 
-	public static final int FEED_DETAILS_ARECORD_FILESTRUCTURE_FIELD_INDEX = 0;
-	public static final int FEED_DETAILS_ARECORD_PARTITIONSTRATEGY_FIELD_INDEX = 1;
-	public static final int FEEDL_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX = 2;
-	public static final int FEED_DETAILS_ARECORD_PRIMARYKEY_FIELD_INDEX = 3;
-	public static final int FEED_DETAILS_ARECORD_GROUPNAME_FIELD_INDEX = 4;
-	public static final int FEED_DETAILS_ARECORD_ADAPTER_FIELD_INDEX = 5;
-	public static final int FEED_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX = 6;
-	public static final int FEED_DETAILS_ARECORD_FUNCTION_FIELD_INDEX = 7;
-	public static final int FEED_DETAILS_ARECORD_STATE_FIELD_INDEX = 8;
+    public static final int FEED_DETAILS_ARECORD_FILESTRUCTURE_FIELD_INDEX = 0;
+    public static final int FEED_DETAILS_ARECORD_PARTITIONSTRATEGY_FIELD_INDEX = 1;
+    public static final int FEEDL_DETAILS_ARECORD_PARTITIONKEY_FIELD_INDEX = 2;
+    public static final int FEED_DETAILS_ARECORD_PRIMARYKEY_FIELD_INDEX = 3;
+    public static final int FEED_DETAILS_ARECORD_GROUPNAME_FIELD_INDEX = 4;
+    public static final int FEED_DETAILS_ARECORD_ADAPTER_FIELD_INDEX = 5;
+    public static final int FEED_DETAILS_ARECORD_PROPERTIES_FIELD_INDEX = 6;
+    public static final int FEED_DETAILS_ARECORD_FUNCTION_FIELD_INDEX = 7;
+    public static final int FEED_DETAILS_ARECORD_STATE_FIELD_INDEX = 8;
 
-	private static final ARecordType createFeedDetailsRecordType() {
-		AOrderedListType orderedListType = new AOrderedListType(
-				BuiltinType.ASTRING, null);
-		AOrderedListType orderedListOfPropertiesType = new AOrderedListType(
-				ADAPTER_PROPERTIES_RECORDTYPE, null);
-		String[] fieldNames = { "FileStructure", "PartitioningStrategy",
-				"PartitioningKey", "PrimaryKey", "GroupName", "Adapter",
-				"Properties", "Function", "Status" };
+    private static final ARecordType createFeedDetailsRecordType() {
+        AOrderedListType orderedListType = new AOrderedListType(BuiltinType.ASTRING, null);
+        AOrderedListType orderedListOfPropertiesType = new AOrderedListType(ADAPTER_PROPERTIES_RECORDTYPE, null);
+        String[] fieldNames = { "FileStructure", "PartitioningStrategy", "PartitioningKey", "PrimaryKey", "GroupName",
+                "Adapter", "Properties", "Function", "Status" };
 
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				orderedListType, orderedListType, BuiltinType.ASTRING,
-				BuiltinType.ASTRING, orderedListOfPropertiesType,
-				BuiltinType.ASTRING, BuiltinType.ASTRING };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, orderedListType, orderedListType,
+                BuiltinType.ASTRING, BuiltinType.ASTRING, orderedListOfPropertiesType, BuiltinType.ASTRING,
+                BuiltinType.ASTRING };
 
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	}
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    }
 
-	// Helper constants for accessing fields in an ARecord of type
-	// DatasetRecordType.
-	public static final int DATASET_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
-	public static final int DATASET_ARECORD_DATASETNAME_FIELD_INDEX = 1;
-	public static final int DATASET_ARECORD_DATATYPENAME_FIELD_INDEX = 2;
-	public static final int DATASET_ARECORD_DATASETTYPE_FIELD_INDEX = 3;
-	public static final int DATASET_ARECORD_INTERNALDETAILS_FIELD_INDEX = 4;
-	public static final int DATASET_ARECORD_EXTERNALDETAILS_FIELD_INDEX = 5;
-	public static final int DATASET_ARECORD_FEEDDETAILS_FIELD_INDEX = 6;
-	public static final int DATASET_ARECORD_TIMESTAMP_FIELD_INDEX = 7;
+    // Helper constants for accessing fields in an ARecord of type
+    // DatasetRecordType.
+    public static final int DATASET_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
+    public static final int DATASET_ARECORD_DATASETNAME_FIELD_INDEX = 1;
+    public static final int DATASET_ARECORD_DATATYPENAME_FIELD_INDEX = 2;
+    public static final int DATASET_ARECORD_DATASETTYPE_FIELD_INDEX = 3;
+    public static final int DATASET_ARECORD_INTERNALDETAILS_FIELD_INDEX = 4;
+    public static final int DATASET_ARECORD_EXTERNALDETAILS_FIELD_INDEX = 5;
+    public static final int DATASET_ARECORD_FEEDDETAILS_FIELD_INDEX = 6;
+    public static final int DATASET_ARECORD_TIMESTAMP_FIELD_INDEX = 7;
 
-	private static final ARecordType createDatasetRecordType() {
-		String[] fieldNames = { "DataverseName", "DatasetName", "DataTypeName",
-				"DatasetType", "InternalDetails", "ExternalDetails",
-				"FeedDetails", "Timestamp" };
+    private static final ARecordType createDatasetRecordType() {
+        String[] fieldNames = { "DataverseName", "DatasetName", "DataTypeName", "DatasetType", "InternalDetails",
+                "ExternalDetails", "FeedDetails", "Timestamp" };
 
-		List<IAType> internalRecordUnionList = new ArrayList<IAType>();
-		internalRecordUnionList.add(BuiltinType.ANULL);
-		internalRecordUnionList.add(INTERNAL_DETAILS_RECORDTYPE);
-		AUnionType internalRecordUnion = new AUnionType(
-				internalRecordUnionList, null);
+        List<IAType> internalRecordUnionList = new ArrayList<IAType>();
+        internalRecordUnionList.add(BuiltinType.ANULL);
+        internalRecordUnionList.add(INTERNAL_DETAILS_RECORDTYPE);
+        AUnionType internalRecordUnion = new AUnionType(internalRecordUnionList, null);
 
-		List<IAType> externalRecordUnionList = new ArrayList<IAType>();
-		externalRecordUnionList.add(BuiltinType.ANULL);
-		externalRecordUnionList.add(EXTERNAL_DETAILS_RECORDTYPE);
-		AUnionType externalRecordUnion = new AUnionType(
-				externalRecordUnionList, null);
+        List<IAType> externalRecordUnionList = new ArrayList<IAType>();
+        externalRecordUnionList.add(BuiltinType.ANULL);
+        externalRecordUnionList.add(EXTERNAL_DETAILS_RECORDTYPE);
+        AUnionType externalRecordUnion = new AUnionType(externalRecordUnionList, null);
 
-		List<IAType> feedRecordUnionList = new ArrayList<IAType>();
-		feedRecordUnionList.add(BuiltinType.ANULL);
-		feedRecordUnionList.add(FEED_DETAILS_RECORDTYPE);
-		AUnionType feedRecordUnion = new AUnionType(feedRecordUnionList, null);
+        List<IAType> feedRecordUnionList = new ArrayList<IAType>();
+        feedRecordUnionList.add(BuiltinType.ANULL);
+        feedRecordUnionList.add(FEED_DETAILS_RECORDTYPE);
+        AUnionType feedRecordUnion = new AUnionType(feedRecordUnionList, null);
 
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				BuiltinType.ASTRING, BuiltinType.ASTRING, internalRecordUnion,
-				externalRecordUnion, feedRecordUnion, BuiltinType.ASTRING };
-		return new ARecordType("DatasetRecordType", fieldNames, fieldTypes,
-				true);
-	}
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                internalRecordUnion, externalRecordUnion, feedRecordUnion, BuiltinType.ASTRING };
+        return new ARecordType("DatasetRecordType", fieldNames, fieldTypes, true);
+    }
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// field type.
-	public static final int FIELD_ARECORD_FIELDNAME_FIELD_INDEX = 0;
-	public static final int FIELD_ARECORD_FIELDTYPE_FIELD_INDEX = 1;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // field type.
+    public static final int FIELD_ARECORD_FIELDNAME_FIELD_INDEX = 0;
+    public static final int FIELD_ARECORD_FIELDTYPE_FIELD_INDEX = 1;
 
-	private static final ARecordType createFieldRecordType() {
-		String[] fieldNames = { "FieldName", "FieldType" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	};
+    private static final ARecordType createFieldRecordType() {
+        String[] fieldNames = { "FieldName", "FieldType" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// record type.
-	public static final int RECORDTYPE_ARECORD_ISOPEN_FIELD_INDEX = 0;
-	public static final int RECORDTYPE_ARECORD_FIELDS_FIELD_INDEX = 1;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // record type.
+    public static final int RECORDTYPE_ARECORD_ISOPEN_FIELD_INDEX = 0;
+    public static final int RECORDTYPE_ARECORD_FIELDS_FIELD_INDEX = 1;
 
-	private static final ARecordType createRecordTypeRecordType() {
-		AOrderedListType olType = new AOrderedListType(FIELD_RECORDTYPE, null);
-		String[] fieldNames = { "IsOpen", "Fields" };
-		IAType[] fieldTypes = { BuiltinType.ABOOLEAN, olType };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	};
+    private static final ARecordType createRecordTypeRecordType() {
+        AOrderedListType olType = new AOrderedListType(FIELD_RECORDTYPE, null);
+        String[] fieldNames = { "IsOpen", "Fields" };
+        IAType[] fieldTypes = { BuiltinType.ABOOLEAN, olType };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of anonymous type
-	// derived type.
-	public static final int DERIVEDTYPE_ARECORD_TAG_FIELD_INDEX = 0;
-	public static final int DERIVEDTYPE_ARECORD_ISANONYMOUS_FIELD_INDEX = 1;
-	public static final int DERIVEDTYPE_ARECORD_ENUMVALUES_FIELD_INDEX = 2;
-	public static final int DERIVEDTYPE_ARECORD_RECORD_FIELD_INDEX = 3;
-	public static final int DERIVEDTYPE_ARECORD_UNION_FIELD_INDEX = 4;
-	public static final int DERIVEDTYPE_ARECORD_UNORDEREDLIST_FIELD_INDEX = 5;
-	public static final int DERIVEDTYPE_ARECORD_ORDEREDLIST_FIELD_INDEX = 6;
+    // Helper constants for accessing fields in an ARecord of anonymous type
+    // derived type.
+    public static final int DERIVEDTYPE_ARECORD_TAG_FIELD_INDEX = 0;
+    public static final int DERIVEDTYPE_ARECORD_ISANONYMOUS_FIELD_INDEX = 1;
+    public static final int DERIVEDTYPE_ARECORD_ENUMVALUES_FIELD_INDEX = 2;
+    public static final int DERIVEDTYPE_ARECORD_RECORD_FIELD_INDEX = 3;
+    public static final int DERIVEDTYPE_ARECORD_UNION_FIELD_INDEX = 4;
+    public static final int DERIVEDTYPE_ARECORD_UNORDEREDLIST_FIELD_INDEX = 5;
+    public static final int DERIVEDTYPE_ARECORD_ORDEREDLIST_FIELD_INDEX = 6;
 
-	private static final ARecordType createDerivedTypeRecordType() {
-		String[] fieldNames = { "Tag", "IsAnonymous", "EnumValues", "Record",
-				"Union", "UnorderedList", "OrderedList" };
-		List<IAType> recordUnionList = new ArrayList<IAType>();
-		recordUnionList.add(BuiltinType.ANULL);
-		recordUnionList.add(RECORD_RECORDTYPE);
-		AUnionType recordUnion = new AUnionType(recordUnionList, null);
+    private static final ARecordType createDerivedTypeRecordType() {
+        String[] fieldNames = { "Tag", "IsAnonymous", "EnumValues", "Record", "Union", "UnorderedList", "OrderedList" };
+        List<IAType> recordUnionList = new ArrayList<IAType>();
+        recordUnionList.add(BuiltinType.ANULL);
+        recordUnionList.add(RECORD_RECORDTYPE);
+        AUnionType recordUnion = new AUnionType(recordUnionList, null);
 
-		List<IAType> unionUnionList = new ArrayList<IAType>();
-		unionUnionList.add(BuiltinType.ANULL);
-		unionUnionList.add(new AOrderedListType(BuiltinType.ASTRING, null));
-		AUnionType unionUnion = new AUnionType(unionUnionList, null);
+        List<IAType> unionUnionList = new ArrayList<IAType>();
+        unionUnionList.add(BuiltinType.ANULL);
+        unionUnionList.add(new AOrderedListType(BuiltinType.ASTRING, null));
+        AUnionType unionUnion = new AUnionType(unionUnionList, null);
 
-		List<IAType> collectionUnionList = new ArrayList<IAType>();
-		collectionUnionList.add(BuiltinType.ANULL);
-		collectionUnionList.add(BuiltinType.ASTRING);
-		AUnionType collectionUnion = new AUnionType(collectionUnionList, null);
+        List<IAType> collectionUnionList = new ArrayList<IAType>();
+        collectionUnionList.add(BuiltinType.ANULL);
+        collectionUnionList.add(BuiltinType.ASTRING);
+        AUnionType collectionUnion = new AUnionType(collectionUnionList, null);
 
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ABOOLEAN,
-				unionUnion, recordUnion, unionUnion, collectionUnion,
-				collectionUnion };
-		return new ARecordType(null, fieldNames, fieldTypes, true);
-	};
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ABOOLEAN, unionUnion, recordUnion, unionUnion,
+                collectionUnion, collectionUnion };
+        return new ARecordType(null, fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of type
-	// DatatypeRecordType.
-	public static final int DATATYPE_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
-	public static final int DATATYPE_ARECORD_DATATYPENAME_FIELD_INDEX = 1;
-	public static final int DATATYPE_ARECORD_DERIVED_FIELD_INDEX = 2;
-	public static final int DATATYPE_ARECORD_TIMESTAMP_FIELD_INDEX = 3;
+    // Helper constants for accessing fields in an ARecord of type
+    // DatatypeRecordType.
+    public static final int DATATYPE_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
+    public static final int DATATYPE_ARECORD_DATATYPENAME_FIELD_INDEX = 1;
+    public static final int DATATYPE_ARECORD_DERIVED_FIELD_INDEX = 2;
+    public static final int DATATYPE_ARECORD_TIMESTAMP_FIELD_INDEX = 3;
 
-	private static final ARecordType createDatatypeRecordType() {
-		String[] fieldNames = { "DataverseName", "DatatypeName", "Derived",
-				"Timestamp" };
-		List<IAType> recordUnionList = new ArrayList<IAType>();
-		recordUnionList.add(BuiltinType.ANULL);
-		recordUnionList.add(DERIVEDTYPE_RECORDTYPE);
-		AUnionType recordUnion = new AUnionType(recordUnionList, null);
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				recordUnion, BuiltinType.ASTRING };
-		return new ARecordType("DatatypeRecordType", fieldNames, fieldTypes,
-				true);
-	};
+    private static final ARecordType createDatatypeRecordType() {
+        String[] fieldNames = { "DataverseName", "DatatypeName", "Derived", "Timestamp" };
+        List<IAType> recordUnionList = new ArrayList<IAType>();
+        recordUnionList.add(BuiltinType.ANULL);
+        recordUnionList.add(DERIVEDTYPE_RECORDTYPE);
+        AUnionType recordUnion = new AUnionType(recordUnionList, null);
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, recordUnion, BuiltinType.ASTRING };
+        return new ARecordType("DatatypeRecordType", fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of type
-	// IndexRecordType.
-	public static final int INDEX_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
-	public static final int INDEX_ARECORD_DATASETNAME_FIELD_INDEX = 1;
-	public static final int INDEX_ARECORD_INDEXNAME_FIELD_INDEX = 2;
-	public static final int INDEX_ARECORD_INDEXSTRUCTURE_FIELD_INDEX = 3;
-	public static final int INDEX_ARECORD_SEARCHKEY_FIELD_INDEX = 4;
-	public static final int INDEX_ARECORD_ISPRIMARY_FIELD_INDEX = 5;
-	public static final int INDEX_ARECORD_TIMESTAMP_FIELD_INDEX = 6;
+    // Helper constants for accessing fields in an ARecord of type
+    // IndexRecordType.
+    public static final int INDEX_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
+    public static final int INDEX_ARECORD_DATASETNAME_FIELD_INDEX = 1;
+    public static final int INDEX_ARECORD_INDEXNAME_FIELD_INDEX = 2;
+    public static final int INDEX_ARECORD_INDEXSTRUCTURE_FIELD_INDEX = 3;
+    public static final int INDEX_ARECORD_SEARCHKEY_FIELD_INDEX = 4;
+    public static final int INDEX_ARECORD_ISPRIMARY_FIELD_INDEX = 5;
+    public static final int INDEX_ARECORD_TIMESTAMP_FIELD_INDEX = 6;
 
-	private static final ARecordType createIndexRecordType() {
-		AOrderedListType olType = new AOrderedListType(BuiltinType.ASTRING,
-				null);
-		String[] fieldNames = { "DataverseName", "DatasetName", "IndexName",
-				"IndexStructure", "SearchKey", "IsPrimary", "Timestamp" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				BuiltinType.ASTRING, BuiltinType.ASTRING, olType,
-				BuiltinType.ABOOLEAN, BuiltinType.ASTRING };
-		return new ARecordType("IndexRecordType", fieldNames, fieldTypes, true);
-	};
+    private static final ARecordType createIndexRecordType() {
+        AOrderedListType olType = new AOrderedListType(BuiltinType.ASTRING, null);
+        String[] fieldNames = { "DataverseName", "DatasetName", "IndexName", "IndexStructure", "SearchKey",
+                "IsPrimary", "Timestamp" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                olType, BuiltinType.ABOOLEAN, BuiltinType.ASTRING };
+        return new ARecordType("IndexRecordType", fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of type
-	// NodeRecordType.
-	public static final int NODE_ARECORD_NODENAME_FIELD_INDEX = 0;
-	public static final int NODE_ARECORD_NUMBEROFCORES_FIELD_INDEX = 1;
-	public static final int NODE_ARECORD_WORKINGMEMORYSIZE_FIELD_INDEX = 2;
+    // Helper constants for accessing fields in an ARecord of type
+    // NodeRecordType.
+    public static final int NODE_ARECORD_NODENAME_FIELD_INDEX = 0;
+    public static final int NODE_ARECORD_NUMBEROFCORES_FIELD_INDEX = 1;
+    public static final int NODE_ARECORD_WORKINGMEMORYSIZE_FIELD_INDEX = 2;
 
-	private static final ARecordType createNodeRecordType() {
-		String[] fieldNames = { "NodeName", "NumberOfCores",
-				"WorkingMemorySize" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.AINT32,
-				BuiltinType.AINT32 };
-		return new ARecordType("NodeRecordType", fieldNames, fieldTypes, true);
-	};
+    private static final ARecordType createNodeRecordType() {
+        String[] fieldNames = { "NodeName", "NumberOfCores", "WorkingMemorySize" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.AINT32, BuiltinType.AINT32 };
+        return new ARecordType("NodeRecordType", fieldNames, fieldTypes, true);
+    };
 
-	// Helper constants for accessing fields in an ARecord of type
-	// NodeGroupRecordType.
-	public static final int NODEGROUP_ARECORD_GROUPNAME_FIELD_INDEX = 0;
-	public static final int NODEGROUP_ARECORD_NODENAMES_FIELD_INDEX = 1;
-	public static final int NODEGROUP_ARECORD_TIMESTAMP_FIELD_INDEX = 2;
+    // Helper constants for accessing fields in an ARecord of type
+    // NodeGroupRecordType.
+    public static final int NODEGROUP_ARECORD_GROUPNAME_FIELD_INDEX = 0;
+    public static final int NODEGROUP_ARECORD_NODENAMES_FIELD_INDEX = 1;
+    public static final int NODEGROUP_ARECORD_TIMESTAMP_FIELD_INDEX = 2;
 
-	private static final ARecordType createNodeGroupRecordType() {
-		AUnorderedListType ulType = new AUnorderedListType(BuiltinType.ASTRING,
-				null);
-		String[] fieldNames = { "GroupName", "NodeNames", "Timestamp" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, ulType,
-				BuiltinType.ASTRING };
-		return new ARecordType("NodeGroupRecordType", fieldNames, fieldTypes,
-				true);
-	};
+    private static final ARecordType createNodeGroupRecordType() {
+        AUnorderedListType ulType = new AUnorderedListType(BuiltinType.ASTRING, null);
+        String[] fieldNames = { "GroupName", "NodeNames", "Timestamp" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, ulType, BuiltinType.ASTRING };
+        return new ARecordType("NodeGroupRecordType", fieldNames, fieldTypes, true);
+    };
 
-	private static IAType createFunctionParamsRecordType() {
-		AOrderedListType orderedParamListType = new AOrderedListType(
-				BuiltinType.ASTRING, null);
-		return orderedParamListType;
+    private static IAType createFunctionParamsRecordType() {
+        AOrderedListType orderedParamListType = new AOrderedListType(BuiltinType.ASTRING, null);
+        return orderedParamListType;
 
-	}
+    }
 
-	public static final int FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
-	public static final int FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX = 1;
-	public static final int FUNCTION_ARECORD_FUNCTIONARITY_FIELD_INDEX = 2;
-	public static final int FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX = 3;
-	public static final int FUNCTION_ARECORD_FUNCTION_BODY_FIELD_INDEX = 4;
+    public static final int FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX = 0;
+    public static final int FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX = 1;
+    public static final int FUNCTION_ARECORD_FUNCTION_ARITY_FIELD_INDEX = 2;
+    public static final int FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX = 3;
+    public static final int FUNCTION_ARECORD_FUNCTION_RETURN_TYPE_FIELD_INDEX = 4;
+    public static final int FUNCTION_ARECORD_FUNCTION_DEFINITION_FIELD_INDEX = 5;
+    public static final int FUNCTION_ARECORD_FUNCTION_LANGUAGE_FIELD_INDEX = 6;
+    public static final int FUNCTION_ARECORD_FUNCTION_KIND_FIELD_INDEX = 7;
 
-	private static final ARecordType createFunctionRecordType() {
+    private static final ARecordType createFunctionRecordType() {
 
-		String[] fieldNames = { "DataverseName", "FunctionName",
-				"FunctionArity", "FunctionParams", "FunctionBody" };
-		IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING,
-				BuiltinType.ASTRING, createFunctionParamsRecordType(),
-				BuiltinType.ASTRING };
-		return new ARecordType("FunctionRecordType", fieldNames, fieldTypes,
-				true);
-	}
+        String[] fieldNames = { "DataverseName", "Name", "Arity", "Params", "ReturnType", "Definition", "Language",
+                "Kind" };
+        IAType[] fieldTypes = { BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                createFunctionParamsRecordType(), BuiltinType.ASTRING, BuiltinType.ASTRING, BuiltinType.ASTRING,
+                BuiltinType.ASTRING };
+        return new ARecordType("FunctionRecordType", fieldNames, fieldTypes, true);
+    }
 }
\ No newline at end of file
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 ba7c797..6df5b6d 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
@@ -37,6 +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.runtime.formats.NonTaggedDataFormat;
 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;
@@ -53,7 +54,7 @@
     // We are assuming that there is a one AqlCompiledMetadataDeclarations per
     // transaction.
     private final MetadataTransactionContext mdTxnCtx;
-    private String dataverseName = null;
+    private String defaultDataverseName = null;
     private FileSplit outputFile;
     private Map<String, String[]> stores;
     private IDataFormat format;
@@ -68,9 +69,9 @@
 
     public AqlCompiledMetadataDeclarations(MetadataTransactionContext mdTxnCtx, String dataverseName,
             FileSplit outputFile, Map<String, String> config, Map<String, String[]> stores, Map<String, IAType> types,
-            Map<String, TypeDataGen> typeDataGenMap, IAWriterFactory writerFactory, boolean online) {
+            Map<String, TypeDataGen> typeDataGenMap, IAWriterFactory writerFactory, boolean online)
+            throws AsterixException {
         this.mdTxnCtx = mdTxnCtx;
-        this.dataverseName = dataverseName;
         this.outputFile = outputFile;
         this.config = config;
         if (stores == null && online) {
@@ -81,11 +82,18 @@
         this.types = types;
         this.typeDataGenMap = typeDataGenMap;
         this.writerFactory = writerFactory;
+        this.format = NonTaggedDataFormat.INSTANCE;
+        try {
+            format.registerRuntimeFunctions();
+        } catch (AlgebricksException ae) {
+            throw new AsterixException(ae);
+        }
+        this.defaultDataverseName = dataverseName;
     }
 
-    public void connectToDataverse(String dvName) throws AlgebricksException, AsterixException {
+    public void connectToDataverse(String dvName) throws AsterixException {
         if (isConnected) {
-            throw new AlgebricksException("You are already connected to " + dataverseName + " dataverse");
+            throw new AsterixException("You are already connected to " + defaultDataverseName + " dataverse");
         }
         Dataverse dv;
         try {
@@ -94,9 +102,9 @@
             throw new AsterixException(e);
         }
         if (dv == null) {
-            throw new AlgebricksException("There is no dataverse with this name " + dvName + " to connect to.");
+            throw new AsterixException("There is no dataverse with this name " + dvName + " to connect to.");
         }
-        dataverseName = dvName;
+        defaultDataverseName = dvName;
         isConnected = true;
         try {
             format = (IDataFormat) Class.forName(dv.getDataFormat()).newInstance();
@@ -105,11 +113,11 @@
         }
     }
 
-    public void disconnectFromDataverse() throws AlgebricksException {
+    public void disconnectFromDataverse() throws AsterixException {
         if (!isConnected) {
-            throw new AlgebricksException("You are not connected to any dataverse");
+            throw new AsterixException("You are not connected to any dataverse");
         }
-        dataverseName = null;
+        defaultDataverseName = null;
         format = null;
         isConnected = false;
     }
@@ -118,8 +126,8 @@
         return isConnected;
     }
 
-    public String getDataverseName() {
-        return dataverseName;
+    public String getDefaultDataverseName() {
+        return defaultDataverseName;
     }
 
     public FileSplit getOutputFile() {
@@ -127,9 +135,6 @@
     }
 
     public IDataFormat getFormat() throws AlgebricksException {
-        if (!isConnected) {
-            throw new AlgebricksException("You need first to connect to a dataverse.");
-        }
         return format;
     }
 
@@ -138,6 +143,10 @@
     }
 
     public IAType findType(String typeName) {
+        return findType(defaultDataverseName, typeName);
+    }
+
+    public IAType findType(String dataverseName, String typeName) {
         Datatype type;
         try {
             type = metadataManager.getDatatype(mdTxnCtx, dataverseName, typeName);
@@ -173,6 +182,14 @@
 
     public Dataset findDataset(String datasetName) throws AlgebricksException {
         try {
+            return metadataManager.getDataset(mdTxnCtx, defaultDataverseName, datasetName);
+        } catch (MetadataException e) {
+            throw new AlgebricksException(e);
+        }
+    }
+
+    public Dataset findDataset(String dataverseName, String datasetName) throws AlgebricksException {
+        try {
             return metadataManager.getDataset(mdTxnCtx, dataverseName, datasetName);
         } catch (MetadataException e) {
             throw new AlgebricksException(e);
@@ -180,13 +197,13 @@
     }
 
     public List<Index> getDatasetIndexes(String dataverseName, String datasetName) throws AlgebricksException {
-    	try {
+        try {
             return metadataManager.getDatasetIndexes(mdTxnCtx, dataverseName, datasetName);
         } catch (MetadataException e) {
             throw new AlgebricksException(e);
         }
     }
-    
+
     public Index getDatasetPrimaryIndex(String dataverseName, String datasetName) throws AlgebricksException {
         try {
             return metadataManager.getIndex(mdTxnCtx, dataverseName, datasetName, datasetName);
@@ -202,14 +219,14 @@
             throw new AlgebricksException(e);
         }
     }
-    
+
     public void setOutputFile(FileSplit outputFile) {
         this.outputFile = outputFile;
     }
 
     public Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitProviderAndPartitionConstraintsForInternalOrFeedDataset(
-            String datasetName, String targetIdxName) throws AlgebricksException {
-        FileSplit[] splits = splitsForInternalOrFeedDataset(datasetName, targetIdxName);
+            String dataverseName, String datasetName, String targetIdxName) throws AlgebricksException {
+        FileSplit[] splits = splitsForInternalOrFeedDataset(dataverseName, datasetName, targetIdxName);
         IFileSplitProvider splitProvider = new ConstantFileSplitProvider(splits);
         String[] loc = new String[splits.length];
         for (int p = 0; p < splits.length; p++) {
@@ -234,11 +251,11 @@
                 new ConstantFileSplitProvider(invListsSplits));
     }
 
-    private FileSplit[] splitsForInternalOrFeedDataset(String datasetName, String targetIdxName)
+    private FileSplit[] splitsForInternalOrFeedDataset(String dataverseName, String datasetName, String targetIdxName)
             throws AlgebricksException {
 
-        File relPathFile = new File(getRelativePath(datasetName + "_idx_" + targetIdxName));
-        Dataset dataset = findDataset(datasetName);
+        File relPathFile = new File(getRelativePath(dataverseName, datasetName + "_idx_" + targetIdxName));
+        Dataset dataset = findDataset(dataverseName, datasetName);
         if (dataset.getDatasetType() != DatasetType.INTERNAL & dataset.getDatasetType() != DatasetType.FEED) {
             throw new AlgebricksException("Not an internal or feed dataset");
         }
@@ -270,6 +287,10 @@
     }
 
     public String getRelativePath(String fileName) {
+        return defaultDataverseName + File.separator + fileName;
+    }
+
+    public String getRelativePath(String dataverseName, String fileName) {
         return dataverseName + File.separator + fileName;
     }
 
@@ -288,4 +309,5 @@
     public MetadataTransactionContext getMetadataTransactionContext() {
         return mdTxnCtx;
     }
+
 }
\ No newline at end of file
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlIndex.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlIndex.java
index bac7733..e289e54 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlIndex.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/AqlIndex.java
@@ -38,7 +38,7 @@
     @Override
     public IDataSource<AqlSourceId> getDataSource() {
         try {
-            AqlSourceId asid = new AqlSourceId(acmd.getDataverseName(), datasetName);
+            AqlSourceId asid = new AqlSourceId(acmd.getDefaultDataverseName(), datasetName);
             return AqlMetadataProvider.lookupSourceInMetadata(acmd, asid);
         } catch (AlgebricksException e) {
             return null;
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 a3d3472..80cf3d5 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
@@ -121,9 +121,11 @@
             List<LogicalVariable> projectVariables, boolean projectPushed, IOperatorSchema opSchema,
             IVariableTypeEnvironment typeEnv, JobGenContext context, JobSpecification jobSpec)
             throws AlgebricksException {
-        Dataset dataset = metadata.findDataset(dataSource.getId().getDatasetName());
+        Dataset dataset = metadata.findDataset(dataSource.getId().getDataverseName(), dataSource.getId()
+                .getDatasetName());
         if (dataset == null) {
-            throw new AlgebricksException("Unknown dataset " + dataSource.getId().getDatasetName());
+            throw new AlgebricksException("Unknown dataset " + dataSource.getId().getDatasetName() + " in dataverse "
+                    + dataSource.getId().getDataverseName());
         }
         switch (dataset.getDatasetType()) {
             case FEED:
@@ -162,7 +164,7 @@
         IAType itemType = metadata.findType(itemTypeName);
         if (dataSource instanceof ExternalFeedDataSource) {
             FeedDatasetDetails datasetDetails = (FeedDatasetDetails) dataset.getDatasetDetails();
-            return buildFeedIntakeRuntime(jobSpec, metadata.getDataverseName(), dataset.getDatasetName(), itemType,
+            return buildFeedIntakeRuntime(jobSpec, metadata.getDefaultDataverseName(), dataset.getDatasetName(), itemType,
                     datasetDetails, metadata.getFormat());
         } else {
             return buildExternalDataScannerRuntime(jobSpec, itemType,
@@ -269,7 +271,7 @@
             JobSpecification jobSpec, AqlCompiledMetadataDeclarations metadata, FeedDatasetDetails datasetDetails,
             String dataverse, String dataset, List<IFeedMessage> feedMessages) throws AlgebricksException {
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> spPc = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataset, dataset);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverse, dataset, dataset);
         FeedMessageOperatorDescriptor feedMessenger = new FeedMessageOperatorDescriptor(jobSpec, dataverse, dataset,
                 feedMessages);
         return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(feedMessenger, spPc.second);
@@ -303,7 +305,8 @@
         IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> spPc;
         try {
-            spPc = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
+            spPc = metadata.splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataset.getDataverseName(),
+                    datasetName, indexName);
         } catch (Exception e) {
             throw new AlgebricksException(e);
         }
@@ -386,7 +389,8 @@
         IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
         RecordDescriptor recDesc = new RecordDescriptor(recordFields);
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> spPc = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataset.getDataverseName(), datasetName,
+                        indexName);
         RTreeSearchOperatorDescriptor rtreeSearchOp = new RTreeSearchOperatorDescriptor(jobSpec, recDesc,
                 appContext.getStorageManagerInterface(), appContext.getIndexRegistryProvider(), spPc.first, typeTraits,
                 comparatorFactories, keyFields, new RTreeDataflowHelperFactory(valueProviderFactories), false,
@@ -434,30 +438,32 @@
 
     public static AqlDataSource lookupSourceInMetadata(AqlCompiledMetadataDeclarations metadata, AqlSourceId aqlId)
             throws AlgebricksException {
+        /*
         if (!aqlId.getDataverseName().equals(metadata.getDataverseName())) {
             return null;
-        }
-        Dataset dataset = metadata.findDataset(aqlId.getDatasetName());
+        }*/
+        Dataset dataset = metadata.findDataset(aqlId.getDataverseName(), aqlId.getDatasetName());
         if (dataset == null) {
             throw new AlgebricksException("Datasource with id " + aqlId + " was not found.");
         }
         String tName = dataset.getItemTypeName();
-        IAType itemType = metadata.findType(tName);
+        IAType itemType = metadata.findType(aqlId.getDataverseName(), tName);
         return new AqlDataSource(aqlId, dataset, itemType);
     }
 
     @Override
     public boolean scannerOperatorIsLeaf(IDataSource<AqlSourceId> dataSource) {
         AqlSourceId asid = dataSource.getId();
+        String dataverseName = asid.getDataverseName();
         String datasetName = asid.getDatasetName();
         Dataset dataset = null;
         try {
-            dataset = metadata.findDataset(datasetName);
+            dataset = metadata.findDataset(dataverseName, datasetName);
         } catch (AlgebricksException e) {
             throw new IllegalStateException(e);
         }
         if (dataset == null) {
-            throw new IllegalArgumentException("Unknown dataset " + datasetName);
+            throw new IllegalArgumentException("Unknown dataset " + datasetName + " in dataverse " + dataverseName);
         }
         return dataset.getDatasetType() == DatasetType.EXTERNAL;
     }
@@ -494,7 +500,8 @@
                 itemType, context.getBinaryComparatorFactoryProvider());
 
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataSource.getId().getDataverseName(),
+                        datasetName, indexName);
         IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
         TreeIndexBulkLoadOperatorDescriptor btreeBulkLoad = new TreeIndexBulkLoadOperatorDescriptor(spec,
                 appContext.getStorageManagerInterface(), appContext.getIndexRegistryProvider(),
@@ -520,15 +527,16 @@
         }
         fieldPermutation[numKeys] = propagatedSchema.findVariable(payload);
 
-        Dataset dataset = metadata.findDataset(datasetName);
+        Dataset dataset = metadata.findDataset(dataSource.getId().getDataverseName(), datasetName);
         if (dataset == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
+            throw new AlgebricksException("Unknown dataset " + datasetName + " in dataverse "
+                    + dataSource.getId().getDataverseName());
         }
         Index primaryIndex = metadata.getDatasetPrimaryIndex(dataset.getDataverseName(), dataset.getDatasetName());
         String indexName = primaryIndex.getIndexName();
 
         String itemTypeName = dataset.getItemTypeName();
-        ARecordType itemType = (ARecordType) metadata.findType(itemTypeName);
+        ARecordType itemType = (ARecordType) metadata.findType(dataSource.getId().getDataverseName(), itemTypeName);
 
         ITypeTraits[] typeTraits = DatasetUtils.computeTupleTypeTraits(dataset, itemType);
 
@@ -536,7 +544,8 @@
         IBinaryComparatorFactory[] comparatorFactories = DatasetUtils.computeKeysBinaryComparatorFactories(dataset,
                 itemType, context.getBinaryComparatorFactoryProvider());
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataSource.getId().getDataverseName(),
+                        datasetName, indexName);
         TreeIndexInsertUpdateDeleteOperatorDescriptor btreeBulkLoad = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, recordDesc, appContext.getStorageManagerInterface(), appContext.getIndexRegistryProvider(),
                 splitsAndConstraint.first, typeTraits, comparatorFactories, fieldPermutation, indexOp,
@@ -568,8 +577,10 @@
             List<LogicalVariable> secondaryKeys, ILogicalExpression filterExpr, RecordDescriptor recordDesc,
             JobGenContext context, JobSpecification spec) throws AlgebricksException {
         String indexName = dataSourceIndex.getId();
+        String dataverseName = dataSourceIndex.getDataSource().getId().getDataverseName();
         String datasetName = dataSourceIndex.getDataSource().getId().getDatasetName();
-        Dataset dataset = metadata.findDataset(datasetName);
+
+        Dataset dataset = metadata.findDataset(dataverseName, datasetName);
         if (dataset == null) {
             throw new AlgebricksException("Unknown dataset " + datasetName);
         }
@@ -577,12 +588,12 @@
         AsterixTupleFilterFactory filterFactory = createTupleFilterFactory(inputSchemas, typeEnv, filterExpr, context);
         switch (secondaryIndex.getIndexType()) {
             case BTREE: {
-                return getBTreeDmlRuntime(datasetName, indexName, propagatedSchema, primaryKeys, secondaryKeys,
-                        filterFactory, recordDesc, context, spec, indexOp);
+                return getBTreeDmlRuntime(dataverseName, datasetName, indexName, propagatedSchema, primaryKeys,
+                        secondaryKeys, filterFactory, recordDesc, context, spec, indexOp);
             }
             case RTREE: {
-                return getRTreeDmlRuntime(datasetName, indexName, propagatedSchema, primaryKeys, secondaryKeys,
-                        filterFactory, recordDesc, context, spec, indexOp);
+                return getRTreeDmlRuntime(dataverseName, datasetName, indexName, propagatedSchema, primaryKeys,
+                        secondaryKeys, filterFactory, recordDesc, context, spec, indexOp);
             }
             default: {
                 throw new AlgebricksException("Insert and delete not implemented for index type: "
@@ -624,8 +635,8 @@
         return new AsterixTupleFilterFactory(filterEvalFactory, context.getBinaryBooleanInspectorFactory());
     }
 
-    private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getBTreeDmlRuntime(String datasetName,
-            String indexName, IOperatorSchema propagatedSchema, List<LogicalVariable> primaryKeys,
+    private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getBTreeDmlRuntime(String dataverseName,
+            String datasetName, String indexName, IOperatorSchema propagatedSchema, List<LogicalVariable> primaryKeys,
             List<LogicalVariable> secondaryKeys, AsterixTupleFilterFactory filterFactory, RecordDescriptor recordDesc,
             JobGenContext context, JobSpecification spec, IndexOp indexOp) throws AlgebricksException {
         int numKeys = primaryKeys.size() + secondaryKeys.size();
@@ -643,9 +654,9 @@
             i++;
         }
 
-        Dataset dataset = metadata.findDataset(datasetName);
+        Dataset dataset = metadata.findDataset(dataverseName, datasetName);
         if (dataset == null) {
-            throw new AlgebricksException("Unknown dataset " + datasetName);
+            throw new AlgebricksException("Unknown dataset " + datasetName + " in dataverse " + dataverseName);
         }
         String itemTypeName = dataset.getItemTypeName();
         IAType itemType = metadata.findType(itemTypeName);
@@ -678,7 +689,7 @@
 
         IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, indexName);
         TreeIndexInsertUpdateDeleteOperatorDescriptor btreeBulkLoad = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, recordDesc, appContext.getStorageManagerInterface(), appContext.getIndexRegistryProvider(),
                 splitsAndConstraint.first, typeTraits, comparatorFactories, fieldPermutation, indexOp,
@@ -686,13 +697,13 @@
         return new Pair<IOperatorDescriptor, AlgebricksPartitionConstraint>(btreeBulkLoad, splitsAndConstraint.second);
     }
 
-    private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getRTreeDmlRuntime(String datasetName,
-            String indexName, IOperatorSchema propagatedSchema, List<LogicalVariable> primaryKeys,
+    private Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getRTreeDmlRuntime(String dataverseName,
+            String datasetName, String indexName, IOperatorSchema propagatedSchema, List<LogicalVariable> primaryKeys,
             List<LogicalVariable> secondaryKeys, AsterixTupleFilterFactory filterFactory, RecordDescriptor recordDesc,
             JobGenContext context, JobSpecification spec, IndexOp indexOp) throws AlgebricksException {
-        Dataset dataset = metadata.findDataset(datasetName);
+        Dataset dataset = metadata.findDataset(dataverseName, datasetName);
         String itemTypeName = dataset.getItemTypeName();
-        IAType itemType = metadata.findType(itemTypeName);
+        IAType itemType = metadata.findType(dataverseName, itemTypeName);
         if (itemType.getTypeTag() != ATypeTag.RECORD) {
             throw new AlgebricksException("Only record types can be indexed.");
         }
@@ -739,7 +750,7 @@
 
         IAsterixApplicationContextInfo appContext = (IAsterixApplicationContextInfo) context.getAppContext();
         Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadata
-                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(datasetName, indexName);
+                .splitProviderAndPartitionConstraintsForInternalOrFeedDataset(dataverseName, datasetName, indexName);
         TreeIndexInsertUpdateDeleteOperatorDescriptor rtreeUpdate = new TreeIndexInsertUpdateDeleteOperatorDescriptor(
                 spec, recordDesc, appContext.getStorageManagerInterface(), appContext.getIndexRegistryProvider(),
                 splitsAndConstraint.first, typeTraits, comparatorFactories, fieldPermutation, indexOp,
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Function.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Function.java
index d89bb11..b3e5076 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Function.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Function.java
@@ -7,63 +7,73 @@
 
 public class Function implements IMetadataEntity {
 
-	private String dataverseName;
-	private String functionName;
-	private int arity;
-	private List<String> params;
-	private String functionBody;
+    public static final String LANGUAGE_AQL = "AQL";
+    public static final String LANGUAGE_JAVA = "JAVA";
 
-	public Function(String dataverseName, String functionName, int arity,
-			List<String> params,
-			String functionBody) {
-		this.dataverseName = dataverseName;
-		this.functionName = functionName;
-		this.arity = arity;
-		this.params = params;
-		this.functionBody = functionBody;
-	}
+    public static final String RETURNTYPE_VOID = "VOID";
+    public static final String NOT_APPLICABLE = "N/A";
 
-	public String getDataverseName() {
-		return dataverseName;
-	}
+    private final String dataverse;
+    private final String name;
+    private final int arity;
+    private final List<String> params;
+    private final String body;
+    private final String returnType;
+    private final String language;
+    private final String kind;
 
-	public void setDataverseName(String dataverseName) {
-		this.dataverseName = dataverseName;
-	}
+    public Function(String dataverseName, String functionName, int arity, List<String> params, String returnType,
+            String functionBody, String language, String functionKind) {
+        this.dataverse = dataverseName;
+        this.name = functionName;
+        this.params = params;
+        this.body = functionBody;
+        this.returnType = returnType == null ? RETURNTYPE_VOID : returnType;
+        this.language = language;
+        this.kind = functionKind;
+        this.arity = arity;
+    }
 
-	public String getFunctionName() {
-		return functionName;
-	}
+    public String getDataverseName() {
+        return dataverse;
+    }
 
-	public int getFunctionArity() {
-		return arity;
-	}
+    public String getName() {
+        return name;
+    }
 
-	public List<String> getParams() {
-		return params;
-	}
+    public List<String> getParams() {
+        return params;
+    }
 
-	public void setParams(List<String> params) {
-		this.params = params;
-	}
+    public String getFunctionBody() {
+        return body;
+    }
 
-	public String getFunctionBody() {
-		return functionBody;
-	}
+    public String getReturnType() {
+        return returnType;
+    }
 
-	public void setFunctionBody(String functionBody) {
-		this.functionBody = functionBody;
-	}
+    public String getLanguage() {
+        return language;
+    }
 
-	@Override
-	public Object addToCache(MetadataCache cache) {
-		return cache.addFunctionIfNotExists(this);
-	}
+    public int getArity() {
+        return arity;
+    }
 
-	@Override
-	public Object dropFromCache(MetadataCache cache) {
-		return cache.dropFunction(this);
-	}
+    public String getKind() {
+        return kind;
+    }
+
+    @Override
+    public Object addToCache(MetadataCache cache) {
+        return cache.addFunctionIfNotExists(this);
+    }
+
+    @Override
+    public Object dropFromCache(MetadataCache cache) {
+        return cache.dropFunction(this);
+    }
 
 }
-
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FunctionTupleTranslator.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FunctionTupleTranslator.java
index cdf43fb..2724bc9 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FunctionTupleTranslator.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entitytupletranslators/FunctionTupleTranslator.java
@@ -39,149 +39,148 @@
 
 /**
  * Translates a Function metadata entity to an ITupleReference and vice versa.
- * 
  */
 public class FunctionTupleTranslator extends AbstractTupleTranslator<Function> {
-	// Field indexes of serialized Function in a tuple.
-	// First key field.
-	public static final int FUNCTION_DATAVERSENAME_TUPLE_FIELD_INDEX = 0;
-	// Second key field.
-	public static final int FUNCTION_FUNCTIONNAME_TUPLE_FIELD_INDEX = 1;
-	// Thirdy key field.
-	public static final int FUNCTION_FUNCTIONARITY_TUPLE_FIELD_INDEX = 2;
+    // Field indexes of serialized Function in a tuple.
+    // First key field.
+    public static final int FUNCTION_DATAVERSENAME_TUPLE_FIELD_INDEX = 0;
+    // Second key field.
+    public static final int FUNCTION_FUNCTIONNAME_TUPLE_FIELD_INDEX = 1;
 
-	// Payload field containing serialized Function.
-	public static final int FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX = 3;
+    // Payload field containing serialized Function.
+    public static final int FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX = 2;
 
-	@SuppressWarnings("unchecked")
-	private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(MetadataRecordTypes.FUNCTION_RECORDTYPE);
+    @SuppressWarnings("unchecked")
+    private ISerializerDeserializer<ARecord> recordSerDes = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(MetadataRecordTypes.FUNCTION_RECORDTYPE);
 
-	public FunctionTupleTranslator(boolean getTuple) {
-		super(getTuple, MetadataPrimaryIndexes.FUNCTION_DATASET.getFieldCount());
-	}
+    public FunctionTupleTranslator(boolean getTuple) {
+        super(getTuple, MetadataPrimaryIndexes.FUNCTION_DATASET.getFieldCount());
+    }
 
-	@Override
-	public Function getMetadataEntytiFromTuple(ITupleReference frameTuple)
-			throws IOException {
-		byte[] serRecord = frameTuple
-				.getFieldData(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
-		int recordStartOffset = frameTuple
-				.getFieldStart(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
-		int recordLength = frameTuple
-				.getFieldLength(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
-		ByteArrayInputStream stream = new ByteArrayInputStream(serRecord,
-				recordStartOffset, recordLength);
-		DataInput in = new DataInputStream(stream);
-		ARecord functionRecord = (ARecord) recordSerDes.deserialize(in);
-		return createFunctionFromARecord(functionRecord);
-	}
+    @Override
+    public Function getMetadataEntytiFromTuple(ITupleReference frameTuple) throws IOException {
+        byte[] serRecord = frameTuple.getFieldData(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordStartOffset = frameTuple.getFieldStart(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
+        int recordLength = frameTuple.getFieldLength(FUNCTION_PAYLOAD_TUPLE_FIELD_INDEX);
+        ByteArrayInputStream stream = new ByteArrayInputStream(serRecord, recordStartOffset, recordLength);
+        DataInput in = new DataInputStream(stream);
+        ARecord functionRecord = (ARecord) recordSerDes.deserialize(in);
+        return createFunctionFromARecord(functionRecord);
+    }
 
-	private Function createFunctionFromARecord(ARecord functionRecord) {
-		String dataverseName = ((AString) functionRecord
-				.getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX))
-				.getStringValue();
-		String functionName = ((AString) functionRecord
-				.getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX))
-				.getStringValue();
-		String arity = ((AString) functionRecord
-				.getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONARITY_FIELD_INDEX))
-				.getStringValue();
+    private Function createFunctionFromARecord(ARecord functionRecord) {
+        String dataverseName = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX)).getStringValue();
+        String functionName = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX)).getStringValue();
+        String arity = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_ARITY_FIELD_INDEX)).getStringValue();
 
-		IACursor cursor = ((AOrderedList) functionRecord
-				.getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX))
-				.getCursor();
-		List<String> params = new ArrayList<String>();
-		while (cursor.next()) {
-			params.add(((AString) cursor.get()).getStringValue());
-		}
+        IACursor cursor = ((AOrderedList) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX)).getCursor();
+        List<String> params = new ArrayList<String>();
+        while (cursor.next()) {
+            params.add(((AString) cursor.get()).getStringValue());
+        }
 
-		String functionBody = ((AString) functionRecord
-				.getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_BODY_FIELD_INDEX))
-				.getStringValue();
+        String returnType = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_RETURN_TYPE_FIELD_INDEX)).getStringValue();
 
-		return new Function(dataverseName, functionName,
-				Integer.parseInt(arity), params, functionBody);
+        String definition = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_DEFINITION_FIELD_INDEX)).getStringValue();
 
-	}
+        String language = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_LANGUAGE_FIELD_INDEX)).getStringValue();
 
-	@Override
-	public ITupleReference getTupleFromMetadataEntity(Function function)
-			throws IOException {
-		// write the key in the first 3 fields of the tuple
-		tupleBuilder.reset();
-		aString.setValue(function.getDataverseName());
-		stringSerde.serialize(aString, tupleBuilder.getDataOutput());
-		tupleBuilder.addFieldEndOffset();
-		aString.setValue(function.getFunctionName());
-		stringSerde.serialize(aString, tupleBuilder.getDataOutput());
-		tupleBuilder.addFieldEndOffset();
-		aString.setValue("" + function.getFunctionArity());
-		stringSerde.serialize(aString, tupleBuilder.getDataOutput());
-		tupleBuilder.addFieldEndOffset();
+        String functionKind = ((AString) functionRecord
+                .getValueByPos(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_KIND_FIELD_INDEX)).getStringValue();
+        return new Function(dataverseName, functionName, Integer.parseInt(arity), params, returnType, definition,
+                language, functionKind);
 
-		// write the pay-load in the fourth field of the tuple
+    }
 
-		recordBuilder.reset(MetadataRecordTypes.FUNCTION_RECORDTYPE);
+    @Override
+    public ITupleReference getTupleFromMetadataEntity(Function function) throws IOException {
+        // write the key in the first 2 fields of the tuple
+        tupleBuilder.reset();
+        aString.setValue(function.getDataverseName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+        aString.setValue(function.getName());
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
+        aString.setValue(function.getArity() + "");
+        stringSerde.serialize(aString, tupleBuilder.getDataOutput());
+        tupleBuilder.addFieldEndOffset();
 
-		// write field 0
-		fieldValue.reset();
-		aString.setValue(function.getDataverseName());
-		stringSerde.serialize(aString, fieldValue.getDataOutput());
-		recordBuilder.addField(
-				MetadataRecordTypes.FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX,
-				fieldValue);
+        // write the pay-load in the fourth field of the tuple
 
-		// write field 1
-		fieldValue.reset();
-		aString.setValue(function.getFunctionName());
-		stringSerde.serialize(aString, fieldValue.getDataOutput());
-		recordBuilder.addField(
-				MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX,
-				fieldValue);
+        recordBuilder.reset(MetadataRecordTypes.FUNCTION_RECORDTYPE);
 
-		// write field 2
-		fieldValue.reset();
-		aString.setValue("" + function.getFunctionArity());
-		stringSerde.serialize(aString, fieldValue.getDataOutput());
-		recordBuilder.addField(
-				MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONARITY_FIELD_INDEX,
-				fieldValue);
+        // write field 0
+        fieldValue.reset();
+        aString.setValue(function.getDataverseName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_DATAVERSENAME_FIELD_INDEX, fieldValue);
 
-		// write field 3
-		IAOrderedListBuilder listBuilder = new OrderedListBuilder();
-		ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
-		listBuilder
-				.reset((AOrderedListType) MetadataRecordTypes.FUNCTION_RECORDTYPE
-						.getFieldTypes()[MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX]);
-		for (String param : function.getParams()) {
-			itemValue.reset();
-			aString.setValue(param);
-			stringSerde.serialize(aString, itemValue.getDataOutput());
-			listBuilder.addItem(itemValue);
-		}
-		fieldValue.reset();
-		listBuilder.write(fieldValue.getDataOutput(), true);
-		recordBuilder
-				.addField(
-						MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX,
-						fieldValue);
+        // write field 1
+        fieldValue.reset();
+        aString.setValue(function.getName());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTIONNAME_FIELD_INDEX, fieldValue);
 
-		// write field 4
-		fieldValue.reset();
-		aString.setValue(function.getFunctionBody());
-		stringSerde.serialize(aString, fieldValue.getDataOutput());
-		recordBuilder.addField(
-				MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_BODY_FIELD_INDEX,
-				fieldValue);
+        // write field 2
+        fieldValue.reset();
+        aString.setValue(function.getArity() + "");
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_ARITY_FIELD_INDEX, fieldValue);
 
-		// write record
-		recordBuilder.write(tupleBuilder.getDataOutput(), true);
-		tupleBuilder.addFieldEndOffset();
+        // write field 3
+        IAOrderedListBuilder listBuilder = new OrderedListBuilder();
+        ArrayBackedValueStorage itemValue = new ArrayBackedValueStorage();
+        listBuilder
+                .reset((AOrderedListType) MetadataRecordTypes.FUNCTION_RECORDTYPE.getFieldTypes()[MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX]);
+        for (String param : function.getParams()) {
+            itemValue.reset();
+            aString.setValue(param);
+            stringSerde.serialize(aString, itemValue.getDataOutput());
+            listBuilder.addItem(itemValue);
+        }
+        fieldValue.reset();
+        listBuilder.write(fieldValue.getDataOutput(), true);
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_PARAM_LIST_FIELD_INDEX, fieldValue);
 
-		tuple.reset(tupleBuilder.getFieldEndOffsets(),
-				tupleBuilder.getByteArray());
-		return tuple;
-	}
+        // write field 4
+        fieldValue.reset();
+        aString.setValue(function.getReturnType());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_RETURN_TYPE_FIELD_INDEX, fieldValue);
+
+        // write field 5
+        fieldValue.reset();
+        aString.setValue(function.getFunctionBody());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_DEFINITION_FIELD_INDEX, fieldValue);
+
+        // write field 6
+        fieldValue.reset();
+        aString.setValue(function.getLanguage());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_LANGUAGE_FIELD_INDEX, fieldValue);
+
+        // write field 7
+        fieldValue.reset();
+        aString.setValue(function.getKind());
+        stringSerde.serialize(aString, fieldValue.getDataOutput());
+        recordBuilder.addField(MetadataRecordTypes.FUNCTION_ARECORD_FUNCTION_KIND_FIELD_INDEX, fieldValue);
+
+        // write record
+        recordBuilder.write(tupleBuilder.getDataOutput(), true);
+        tupleBuilder.addFieldEndOffset();
+
+        tuple.reset(tupleBuilder.getFieldEndOffsets(), tupleBuilder.getByteArray());
+        return tuple;
+    }
 
 }
\ No newline at end of file
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 edb3808..72cf3c1 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
@@ -11,6 +11,7 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 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.Pair;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalExpressionTag;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
@@ -51,14 +52,19 @@
                     return BuiltinType.ANY;
                 }
                 AsterixConstantValue acv = (AsterixConstantValue) ((ConstantExpression) a1).getValue();
-                String datasetName = ((AString) acv.getObject()).getStringValue();
+                String datasetArg = ((AString) acv.getObject()).getStringValue();
                 AqlCompiledMetadataDeclarations metadata = ((AqlMetadataProvider) mp).getMetadataDeclarations();
-                Dataset dataset = metadata.findDataset(datasetName);
+                Pair<String, String> datasetInfo = getDatasetInfo(metadata, datasetArg);
+                String dataverseName = datasetInfo.first;
+                String datasetName = datasetInfo.second;
+
+                Dataset dataset = metadata.findDataset(dataverseName, datasetName);
                 if (dataset == null) {
-                    throw new AlgebricksException("Could not find dataset " + datasetName);
+                    throw new AlgebricksException("Could not find dataset " + datasetName + " in dataverse "
+                            + dataverseName);
                 }
                 String tn = dataset.getItemTypeName();
-                IAType t2 = metadata.findType(tn);
+                IAType t2 = metadata.findType(dataverseName, tn);
                 if (t2 == null) {
                     throw new AlgebricksException("No type for dataset " + datasetName);
                 }
@@ -87,14 +93,18 @@
                     return BuiltinType.ANY;
                 }
                 AsterixConstantValue acv = (AsterixConstantValue) ((ConstantExpression) a1).getValue();
-                String datasetName = ((AString) acv.getObject()).getStringValue();
+                String datasetArg = ((AString) acv.getObject()).getStringValue();
                 AqlCompiledMetadataDeclarations metadata = ((AqlMetadataProvider) mp).getMetadataDeclarations();
-                Dataset dataset = metadata.findDataset(datasetName);
+                Pair<String, String> datasetInfo = getDatasetInfo(metadata, datasetArg);
+                String dataverseName = datasetInfo.first;
+                String datasetName = datasetInfo.second;
+                Dataset dataset = metadata.findDataset(dataverseName, datasetName);
                 if (dataset == null) {
-                    throw new AlgebricksException("Could not find dataset " + datasetName);
+                    throw new AlgebricksException("Could not find dataset " + datasetName + " in dataverse "
+                            + dataverseName);
                 }
                 String tn = dataset.getItemTypeName();
-                IAType t2 = metadata.findType(tn);
+                IAType t2 = metadata.findType(dataverseName, tn);
                 if (t2 == null) {
                     throw new AlgebricksException("No type for dataset " + datasetName);
                 }
@@ -102,4 +112,18 @@
             }
         });
     }
+
+    private static Pair<String, String> getDatasetInfo(AqlCompiledMetadataDeclarations metadata, String datasetArg) {
+        String[] datasetNameComponents = datasetArg.split("\\.");
+        String dataverseName;
+        String datasetName;
+        if (datasetNameComponents.length == 1) {
+            dataverseName = metadata.getDefaultDataverseName();
+            datasetName = datasetNameComponents[0];
+        } else {
+            dataverseName = datasetNameComponents[0];
+            datasetName = datasetNameComponents[1];
+        }
+        return new Pair(dataverseName, datasetName);
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryTokenizerFactoryProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryTokenizerFactoryProvider.java
index 859b0f2..9dfe7df 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryTokenizerFactoryProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryTokenizerFactoryProvider.java
@@ -1,9 +1,9 @@
 package edu.uci.ics.asterix.formats.nontagged;
 
-import edu.uci.ics.asterix.dataflow.data.common.IBinaryTokenizerFactoryProvider;
 import edu.uci.ics.asterix.dataflow.data.common.AListElementTokenFactory;
 import edu.uci.ics.asterix.dataflow.data.common.AOrderedListBinaryTokenizerFactory;
 import edu.uci.ics.asterix.dataflow.data.common.AUnorderedListBinaryTokenizerFactory;
+import edu.uci.ics.asterix.dataflow.data.common.IBinaryTokenizerFactoryProvider;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.hyracks.storage.am.invertedindex.tokenizers.DelimitedUTF8StringBinaryTokenizerFactory;
 import edu.uci.ics.hyracks.storage.am.invertedindex.tokenizers.HashedUTF8WordTokenFactory;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlSerializerDeserializerProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlSerializerDeserializerProvider.java
index c86e5c9..d4d4fb6 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlSerializerDeserializerProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlSerializerDeserializerProvider.java
@@ -148,7 +148,7 @@
             @Override
             public IAObject deserialize(DataInput in) throws HyracksDataException {
                 try {
-                    SerializerDeserializerUtil.deserializeTag(in);
+                    ATypeTag typeTag = SerializerDeserializerUtil.deserializeTag(in);
                 } catch (IOException e) {
                     throw new HyracksDataException(e);
                 }
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 552a093..5fd092a 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
@@ -9,7 +9,6 @@
 import org.apache.commons.lang3.mutable.Mutable;
 
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.common.AqlNullableTypeComputer;
 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;
@@ -94,7 +93,7 @@
         SI
     }
 
-    private final static Map<FunctionIdentifier, IFunctionInfo> asterixFunctionIdToInfo = new HashMap<FunctionIdentifier, IFunctionInfo>();
+    private static final FunctionInfoRepository finfoRepo = new FunctionInfoRepository();
 
     // it is supposed to be an identity mapping
     private final static Map<IFunctionInfo, IFunctionInfo> builtinFunctionsSet = new HashMap<IFunctionInfo, IFunctionInfo>();
@@ -227,9 +226,9 @@
     public final static FunctionIdentifier LIKE = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "like", 2);
     public final static FunctionIdentifier CONTAINS = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "contains",
             2);
-    private final static FunctionIdentifier STARTS_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+    public final static FunctionIdentifier STARTS_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "starts-with", 2);
-    private final static FunctionIdentifier ENDS_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
+    public final static FunctionIdentifier ENDS_WITH = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "ends-with", 2);
 
     public final static FunctionIdentifier AVG = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-avg", 1);
@@ -402,7 +401,7 @@
     public static final FunctionIdentifier IS_NULL = AlgebricksBuiltinFunctions.IS_NULL;
 
     public static IFunctionInfo getAsterixFunctionInfo(FunctionIdentifier fid) {
-        IFunctionInfo finfo = asterixFunctionIdToInfo.get(fid);
+        IFunctionInfo finfo = finfoRepo.get(fid);;
         if (finfo == null) {
             finfo = new AsterixFunctionInfo(fid);
         }
@@ -410,7 +409,7 @@
     }
 
     public static AsterixFunctionInfo lookupFunction(FunctionIdentifier fid) {
-        return (AsterixFunctionInfo) asterixFunctionIdToInfo.get(fid);
+        return (AsterixFunctionInfo) finfoRepo.get(fid);
     }
 
     static {
@@ -531,7 +530,7 @@
 
         add(STRING_TO_CODEPOINT, OrderedListOfAInt32TypeComputer.INSTANCE);
         add(CODEPOINT_TO_STRING, AStringTypeComputer.INSTANCE);
-        add(STRING_CONCAT, OptionalAStringTypeComputer.INSTANCE);        
+        add(STRING_CONCAT, OptionalAStringTypeComputer.INSTANCE);
         add(SUBSTRING2, Substring2TypeComputer.INSTANCE);
         add(STRING_LENGTH, UnaryStringInt32OrNullTypeComputer.INSTANCE);
         add(STRING_LOWERCASE, UnaryStringOrNullTypeComputer.INSTANCE);
@@ -814,7 +813,7 @@
         IFunctionInfo functionInfo = getAsterixFunctionInfo(fi);
         builtinFunctionsSet.put(functionInfo, functionInfo);
         funTypeComputer.put(functionInfo, typeComputer);
-        asterixFunctionIdToInfo.put(fi, functionInfo);
+        finfoRepo.put(fi);
     }
 
     private static IFunctionInfo addPrivateFunction(FunctionIdentifier fi, IResultTypeComputer typeComputer) {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixExternalFunctionInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixExternalFunctionInfo.java
new file mode 100644
index 0000000..a6a5bd8
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixExternalFunctionInfo.java
@@ -0,0 +1,73 @@
+package edu.uci.ics.asterix.om.functions;
+
+import java.util.List;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
+
+public class AsterixExternalFunctionInfo extends AsterixFunctionInfo implements IExternalFunctionInfo {
+
+    private final IResultTypeComputer rtc;
+    private final List<IAType> argumentTypes;
+    private final String body;
+    private final String language;
+    private final FunctionKind kind;
+    private final IAType returnType;
+
+    public AsterixExternalFunctionInfo(){
+        super();
+        rtc = null;
+        argumentTypes= null;
+        body = null;
+        language=null;
+        kind = null;
+        returnType = null;
+                
+    }
+    
+    public AsterixExternalFunctionInfo(String namespace, AsterixFunction asterixFunction, FunctionKind kind,
+            List<IAType> argumentTypes, IAType returnType, IResultTypeComputer rtc, String body, String language) {
+        super(namespace, asterixFunction);
+        this.rtc = rtc;
+        this.argumentTypes = argumentTypes;
+        this.body = body;
+        this.language = language;
+        this.kind = kind;
+        this.returnType = returnType;
+    }
+
+    public IResultTypeComputer getResultTypeComputer() {
+        return rtc;
+    }
+
+    public List<IAType> getArgumenTypes() {
+        return argumentTypes;
+    }
+
+    @Override
+    public String getFunctionBody() {
+        return body;
+    }
+
+    @Override
+    public List<IAType> getParamList() {
+        return argumentTypes;
+    }
+
+    @Override
+    public String getLanguage() {
+        return language;
+    }
+
+    @Override
+    public FunctionKind getKind() {
+        return kind;
+    }
+
+    @Override
+    public IAType getReturnType() {
+        return returnType;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunction.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunction.java
index 23d5d58..e58681c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunction.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunction.java
@@ -14,26 +14,21 @@
  */
 package edu.uci.ics.asterix.om.functions;
 
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import java.io.Serializable;
 
-public class AsterixFunction {
+public class AsterixFunction implements Serializable {
 
-    private final String functionName;
+    private final String name;
     private final int arity;
     public final static int VARARGS = -1;
 
-    public AsterixFunction(String functionName, int arity) {
-        this.functionName = functionName;
+    public AsterixFunction(String name, int arity) throws IllegalArgumentException {
+        this.name = name;
         this.arity = arity;
     }
-    
-    public AsterixFunction(FunctionIdentifier fid) {
-        this.functionName = fid.getName();
-        this.arity = fid.getArity();
-    }
 
-    public String getFunctionName() {
-        return functionName;
+    public String getName() {
+        return name;
     }
 
     public int getArity() {
@@ -41,7 +36,7 @@
     }
 
     public String toString() {
-        return functionName + "@" + arity;
+        return name;
     }
 
     @Override
@@ -54,8 +49,7 @@
         if (!(o instanceof AsterixFunction)) {
             return false;
         }
-        if (functionName.equals(((AsterixFunction) o).getFunctionName())
-                && (arity == ((AsterixFunction) o).getArity() || arity == VARARGS)) {
+        if (name.equals(((AsterixFunction) o).getName()) || arity == VARARGS) {
             return true;
         }
         return false;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionIdentifier.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionIdentifier.java
new file mode 100644
index 0000000..35cace1
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionIdentifier.java
@@ -0,0 +1,31 @@
+package edu.uci.ics.asterix.om.functions;
+
+
+public class AsterixFunctionIdentifier {
+
+    private final String dataverse;
+    private final AsterixFunction asterixFunction;
+
+    public AsterixFunctionIdentifier(String dataverse, AsterixFunction asterixFunction) {
+        this.dataverse = dataverse;
+        this.asterixFunction = asterixFunction;
+    }
+
+    public AsterixFunctionIdentifier(String dataverse, String name, int arity) {
+        this.dataverse = dataverse;
+        this.asterixFunction = new AsterixFunction(name, arity);
+    }
+
+    public String toString() {
+        return dataverse + ":" + asterixFunction;
+    }
+
+    public String getDataverse() {
+        return dataverse;
+    }
+
+    public AsterixFunction getAsterixFunction() {
+        return asterixFunction;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java
index 61e47c0..d33a551 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionInfo.java
@@ -22,10 +22,14 @@
     private final FunctionIdentifier functionIdentifier;
 
     public AsterixFunctionInfo(String namespace, AsterixFunction asterixFunction) {
-        this.functionIdentifier = new FunctionIdentifier(namespace, asterixFunction.getFunctionName(),
+        this.functionIdentifier = new FunctionIdentifier(namespace, asterixFunction.getName(),
                 asterixFunction.getArity());
     }
 
+    public AsterixFunctionInfo() {
+        functionIdentifier = null;
+    }
+
     public AsterixFunctionInfo(FunctionIdentifier functionIdentifier) {
         this.functionIdentifier = functionIdentifier;
     }
@@ -51,8 +55,7 @@
 
     @Override
     public String toString() {
-        return this.functionIdentifier.getNamespace() + ":" + this.functionIdentifier.getName() + "@"
-                + this.functionIdentifier.getArity();
+        return this.functionIdentifier.getNamespace() + ":" + this.functionIdentifier.getName();
     }
 
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionInfoRepository.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionInfoRepository.java
new file mode 100644
index 0000000..bfc9027
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionInfoRepository.java
@@ -0,0 +1,35 @@
+package edu.uci.ics.asterix.om.functions;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+
+public class FunctionInfoRepository {
+    private final Map<FunctionSignature, IFunctionInfo> functionMap;
+
+    public FunctionInfoRepository() {
+        functionMap = new ConcurrentHashMap<FunctionSignature, IFunctionInfo>();
+    }
+
+    public IFunctionInfo get(String namespace, String name, int arity) {
+        FunctionSignature fname = new FunctionSignature(namespace, name, arity);
+        return functionMap.get(fname);
+    }
+
+    public IFunctionInfo get(FunctionIdentifier fid) {
+        return get(fid.getNamespace(), fid.getName(), fid.getArity());
+    }
+
+    public void put(String namespace, String name, int arity) {
+        FunctionSignature functionSignature = new FunctionSignature(namespace, name, arity);
+        functionMap.put(functionSignature, new AsterixFunctionInfo(new FunctionIdentifier(namespace, name, arity)));
+    }
+
+    public void put(FunctionIdentifier fid) {
+        FunctionSignature functionSignature = new FunctionSignature(fid.getNamespace(), fid.getName(), fid.getArity());
+        functionMap.put(functionSignature, new AsterixFunctionInfo(fid));
+    }
+}
+
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionSignature.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionSignature.java
new file mode 100644
index 0000000..2d32fb8
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionSignature.java
@@ -0,0 +1,47 @@
+package edu.uci.ics.asterix.om.functions;
+
+import java.io.Serializable;
+
+public class FunctionSignature implements Serializable {
+    private final String namespace;
+    private final String name;
+    private final int arity;
+    private final String rep;
+
+    public FunctionSignature(String namespace, String name, int arity) {
+        this.namespace = namespace;
+        this.name = name;
+        this.arity = arity;
+        rep = namespace + ":" + name + "@" + arity;
+    }
+
+    public boolean equals(Object o) {
+        if (!(o instanceof FunctionSignature)) {
+            return false;
+        } else {
+            FunctionSignature f = ((FunctionSignature) o);
+            return namespace.equals(f.getNamespace()) && name.equals(f.getName()) && arity == f.getArity();
+        }
+    }
+
+    public String toString() {
+        return rep;
+    }
+
+    public int hashCode() {
+        return rep.hashCode();
+    }
+
+    public String getNamespace() {
+        return namespace;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getArity() {
+        return arity;
+    }
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IExternalFunctionInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IExternalFunctionInfo.java
new file mode 100644
index 0000000..846c825
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IExternalFunctionInfo.java
@@ -0,0 +1,25 @@
+package edu.uci.ics.asterix.om.functions;
+
+import java.io.Serializable;
+import java.util.List;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
+
+public interface IExternalFunctionInfo extends IFunctionInfo, Serializable {
+
+    public IResultTypeComputer getResultTypeComputer();
+    
+    public IAType getReturnType();
+
+    public String getFunctionBody();
+
+    public List<IAType> getParamList();
+
+    public String getLanguage();
+
+    public FunctionKind getKind();
+
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java
index 0615de4..3ada236 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java
@@ -2,16 +2,12 @@
 
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.ATypeTag;
-import edu.uci.ics.asterix.om.types.AUnionType;
-import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.types.TypeHelper;
+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.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 
 /**
  *
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java
index 0baf221..1c6cb4d 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java
@@ -3,12 +3,12 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 
 /**
  *
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java
index 429f1f0..a8a2413 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java
@@ -3,12 +3,11 @@
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.IAType;
+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.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 
 /**
  *
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java
index da90a06..fc65d43 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java
@@ -5,20 +5,21 @@
  */
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
+import java.util.ArrayList;
+import java.util.List;
+
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
-import java.util.ArrayList;
-import java.util.List;
 
 public class NonTaggedNumericRoundHalfToEven2TypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java
index 454104b..bff0c0b 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java
@@ -5,20 +5,21 @@
  */
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
+import java.util.ArrayList;
+import java.util.List;
+
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
-import java.util.ArrayList;
-import java.util.List;
 
 public class NonTaggedNumericUnaryFunctionTypeComputer implements IResultTypeComputer {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java
index c5d224c..89fae39 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java
@@ -6,11 +6,11 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+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.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 
 
 public class Substring2TypeComputer implements IResultTypeComputer {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/SubstringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/SubstringTypeComputer.java
index b016de8..ebf34aa 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/SubstringTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/SubstringTypeComputer.java
@@ -6,11 +6,11 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
+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.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 
 public class SubstringTypeComputer implements IResultTypeComputer {
     public static final SubstringTypeComputer INSTANCE = new SubstringTypeComputer();
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 bcd45a7..2d3018d 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
@@ -9,13 +9,12 @@
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.types.TypeHelper;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 
 /**
  *
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java
index d26a43f..981bb7c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java
@@ -6,12 +6,11 @@
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeHelper;
+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.expressions.AbstractFunctionCallExpression;
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 
 
 /**
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateDescriptor.java
index 8ddcb3f..a24b893 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.aggregates.collections;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.AOrderedListType;
@@ -13,7 +13,6 @@
 public class ListifyAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "listify", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new ListifyAggregateDescriptor();
@@ -28,7 +27,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.LISTIFY;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableAvgAggregateDescriptor.java
index 6c9989d..6917f0b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableAvgAggregateDescriptor.java
@@ -4,7 +4,6 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -15,6 +14,7 @@
 import edu.uci.ics.asterix.om.base.ADouble;
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -35,7 +35,6 @@
 public class SerializableAvgAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "avg-serial", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SerializableAvgAggregateDescriptor();
@@ -44,7 +43,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SERIAL_AVG;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableCountAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableCountAggregateDescriptor.java
index d8f2553..fae60e2 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableCountAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableCountAggregateDescriptor.java
@@ -3,10 +3,10 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
+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.asterix.om.types.BuiltinType;
@@ -25,8 +25,6 @@
 public class SerializableCountAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "count-serial",
-            1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SerializableCountAggregateDescriptor();
@@ -35,12 +33,12 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SERIAL_COUNT;
     }
 
     @Override
-    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
-            throws AlgebricksException {
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            final ICopyEvaluatorFactory[] args) throws AlgebricksException {
         return new ICopySerializableAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableGlobalAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableGlobalAvgAggregateDescriptor.java
index 02d24a0..0245d2c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableGlobalAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableGlobalAvgAggregateDescriptor.java
@@ -17,6 +17,7 @@
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ARecordType;
@@ -42,8 +43,6 @@
 public class SerializableGlobalAvgAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "global-avg-serial", 1);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     private final static byte SER_RECORD_TYPE_TAG = ATypeTag.RECORD.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -54,12 +53,12 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SERIAL_GLOBAL_AVG;
     }
 
     @Override
-    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(ICopyEvaluatorFactory[] args)
-            throws AlgebricksException {
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            ICopyEvaluatorFactory[] args) throws AlgebricksException {
         final ICopyEvaluatorFactory[] evals = args;
         List<IAType> unionList = new ArrayList<IAType>();
         unionList.add(BuiltinType.ANULL);
@@ -170,8 +169,8 @@
                         boolean metNull = BufferSerDeUtil.getBoolean(state, start + 16);
 
                         if (recordEval == null)
-                            recordEval = new ClosedRecordConstructorEval(recType,
-                                    new ICopyEvaluator[] { evalSum, evalCount }, avgBytes, result);
+                            recordEval = new ClosedRecordConstructorEval(recType, new ICopyEvaluator[] { evalSum,
+                                    evalCount }, avgBytes, result);
 
                         if (globalCount == 0) {
                             GlobalConfig.ASTERIX_LOGGER.fine("AVG aggregate ran over empty input.");
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalAvgAggregateDescriptor.java
index d96e488..7034927 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableLocalAvgAggregateDescriptor.java
@@ -20,6 +20,7 @@
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ARecordType;
@@ -46,8 +47,6 @@
 public class SerializableLocalAvgAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "local-avg-serial", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SerializableLocalAvgAggregateDescriptor();
@@ -56,12 +55,12 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SERIAL_LOCAL_AVG;
     }
 
     @Override
-    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(ICopyEvaluatorFactory[] args)
-            throws AlgebricksException {
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            ICopyEvaluatorFactory[] args) throws AlgebricksException {
         final ICopyEvaluatorFactory[] evals = args;
         List<IAType> unionList = new ArrayList<IAType>();
         unionList.add(BuiltinType.ANULL);
@@ -120,8 +119,8 @@
                         boolean metNull = BufferSerDeUtil.getBoolean(state, start + 16);
                         if (inputVal.getLength() > 0) {
                             ++count;
-                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER
-                                    .deserialize(inputVal.getByteArray()[0]);
+                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(inputVal
+                                    .getByteArray()[0]);
                             switch (typeTag) {
                                 case INT8: {
                                     byte val = AInt8SerializerDeserializer.getByte(inputVal.getByteArray(), 1);
@@ -175,8 +174,8 @@
                         long count = BufferSerDeUtil.getLong(state, start + 8);
                         boolean metNull = BufferSerDeUtil.getBoolean(state, start + 16);
                         if (recordEval == null)
-                            recordEval = new ClosedRecordConstructorEval(recType,
-                                    new ICopyEvaluator[] { evalSum, evalCount }, avgBytes, result);
+                            recordEval = new ClosedRecordConstructorEval(recType, new ICopyEvaluator[] { evalSum,
+                                    evalCount }, avgBytes, result);
                         if (count == 0) {
                             if (GlobalConfig.DEBUG) {
                                 GlobalConfig.ASTERIX_LOGGER.finest("AVG aggregate ran over empty input.");
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java
index 510921a..a8bb1cc 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java
@@ -4,7 +4,6 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -19,6 +18,7 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -39,7 +39,6 @@
 public class SerializableSumAggregateDescriptor extends AbstractSerializableAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "sum-serial", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SerializableSumAggregateDescriptor();
@@ -48,12 +47,12 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SERIAL_SUM;
     }
 
     @Override
-    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(final ICopyEvaluatorFactory[] args)
-            throws AlgebricksException {
+    public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
+            final ICopyEvaluatorFactory[] args) throws AlgebricksException {
         return new ICopySerializableAggregateFunctionFactory() {
             private static final long serialVersionUID = 1L;
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/AvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/AvgAggregateDescriptor.java
index c82f1f0..e5cbb80 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/AvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/AvgAggregateDescriptor.java
@@ -7,7 +7,6 @@
 import java.util.List;
 
 import edu.uci.ics.asterix.common.config.GlobalConfig;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -20,6 +19,7 @@
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ARecordType;
@@ -47,7 +47,6 @@
 public class AvgAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-avg", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new AvgAggregateDescriptor();
@@ -56,7 +55,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.AVG;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateDescriptor.java
index 615f543..1f80f58 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/CountAggregateDescriptor.java
@@ -7,6 +7,7 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
+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.asterix.om.types.BuiltinType;
@@ -26,7 +27,6 @@
 public class CountAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-count", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CountAggregateDescriptor();
@@ -35,7 +35,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.COUNT;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/GlobalAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/GlobalAvgAggregateDescriptor.java
index d94647b..3b27951 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/GlobalAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/GlobalAvgAggregateDescriptor.java
@@ -17,6 +17,7 @@
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ARecordType;
@@ -43,8 +44,6 @@
 public class GlobalAvgAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-global-avg",
-            1);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     private final static byte SER_RECORD_TYPE_TAG = ATypeTag.RECORD.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -55,7 +54,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.GLOBAL_AVG;
     }
 
     @Override
@@ -123,19 +122,21 @@
                             throw new AlgebricksException("Global-Avg is not defined for values of type "
                                     + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serBytes[0]));
                         }
-                                               
+
                         // The record length helps us determine whether the input record fields are nullable.
                         int recordLength = ARecordSerializerDeserializer.getRecordLength(serBytes, 1);
                         int nullBitmapSize = 1;
                         if (recordLength == 29) {
                             nullBitmapSize = 0;
                         }
-                        int offset1 = ARecordSerializerDeserializer.getFieldOffsetById(serBytes, 0, nullBitmapSize, false);
+                        int offset1 = ARecordSerializerDeserializer.getFieldOffsetById(serBytes, 0, nullBitmapSize,
+                                false);
                         if (offset1 == 0) // the sum is null
                             metNull = true;
                         else
                             globalSum += ADoubleSerializerDeserializer.getDouble(serBytes, offset1);
-                        int offset2 = ARecordSerializerDeserializer.getFieldOffsetById(serBytes, 1, nullBitmapSize, false);
+                        int offset2 = ARecordSerializerDeserializer.getFieldOffsetById(serBytes, 1, nullBitmapSize,
+                                false);
                         if (offset2 != 0) // the count is not null
                             globalCount += AInt32SerializerDeserializer.getInt(serBytes, offset2);
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java
index d9173bd..5a7001e 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java
@@ -20,6 +20,7 @@
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ARecordType;
@@ -47,8 +48,6 @@
 public class LocalAvgAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-local-avg",
-            1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new LocalAvgAggregateDescriptor();
@@ -57,7 +56,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.LOCAL_AVG;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MaxAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MaxAggregateDescriptor.java
index 3bc40b6..597ba13 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MaxAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MaxAggregateDescriptor.java
@@ -17,6 +17,7 @@
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -38,7 +39,6 @@
 public class MaxAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-max", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new MaxAggregateDescriptor();
@@ -47,7 +47,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.MAX;
     }
 
     @SuppressWarnings("unchecked")
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinAggregateDescriptor.java
index 6a88a0d..d0b2d5a 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/MinAggregateDescriptor.java
@@ -17,6 +17,7 @@
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -38,7 +39,6 @@
 public class MinAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-min", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new MinAggregateDescriptor();
@@ -47,7 +47,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.MIN;
     }
 
     @SuppressWarnings("unchecked")
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateDescriptor.java
index fa611e2..2c7c270 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/SumAggregateDescriptor.java
@@ -19,6 +19,7 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -40,7 +41,6 @@
 public class SumAggregateDescriptor extends AbstractAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "agg-sum", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SumAggregateDescriptor();
@@ -49,7 +49,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SUM;
     }
 
     @SuppressWarnings("unchecked")
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/NonEmptyStreamAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/NonEmptyStreamAggregateDescriptor.java
index 1a45f7d..f7ddff0 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/NonEmptyStreamAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/stream/NonEmptyStreamAggregateDescriptor.java
@@ -2,9 +2,9 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
+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.asterix.om.types.BuiltinType;
@@ -23,8 +23,6 @@
 
     private static final long serialVersionUID = 1L;
 
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "non-empty-stream", 0);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NonEmptyStreamAggregateDescriptor();
@@ -83,7 +81,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NON_EMPTY_STREAM;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ABooleanConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ABooleanConstructorDescriptor.java
index 8b9f665..ab3c1e7 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ABooleanConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ABooleanConstructorDescriptor.java
@@ -17,11 +17,11 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -40,7 +40,6 @@
 public class ABooleanConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "boolean", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -106,7 +105,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.BOOLEAN_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ACircleConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ACircleConstructorDescriptor.java
index 3d22c11..0c00337 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ACircleConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ACircleConstructorDescriptor.java
@@ -17,12 +17,12 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ACircle;
 import edu.uci.ics.asterix.om.base.AMutableCircle;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -40,7 +40,6 @@
 public class ACircleConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "circle", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -102,7 +101,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CIRCLE_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateConstructorDescriptor.java
index ba48742..71eacde 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateConstructorDescriptor.java
@@ -17,14 +17,14 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADate;
 import edu.uci.ics.asterix.om.base.AMutableDate;
 import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.base.temporal.ByteArrayCharSequenceAccessor;
 import edu.uci.ics.asterix.om.base.temporal.ADateAndTimeParser;
+import edu.uci.ics.asterix.om.base.temporal.ByteArrayCharSequenceAccessor;
 import edu.uci.ics.asterix.om.base.temporal.GregorianCalendarSystem;
+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.asterix.om.types.ATypeTag;
@@ -42,7 +42,6 @@
 public class ADateConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "date", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
@@ -115,7 +114,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.DATE_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateTimeConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateTimeConstructorDescriptor.java
index 49a4734..869910b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateTimeConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADateTimeConstructorDescriptor.java
@@ -17,13 +17,13 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADateTime;
 import edu.uci.ics.asterix.om.base.AMutableDateTime;
 import edu.uci.ics.asterix.om.base.ANull;
-import edu.uci.ics.asterix.om.base.temporal.ByteArrayCharSequenceAccessor;
 import edu.uci.ics.asterix.om.base.temporal.ADateAndTimeParser;
+import edu.uci.ics.asterix.om.base.temporal.ByteArrayCharSequenceAccessor;
+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.asterix.om.types.ATypeTag;
@@ -41,7 +41,6 @@
 public class ADateTimeConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "datetime", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
@@ -123,7 +122,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.DATETIME_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADoubleConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADoubleConstructorDescriptor.java
index 8a837e9..0689fd7 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADoubleConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADoubleConstructorDescriptor.java
@@ -17,12 +17,12 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADouble;
 import edu.uci.ics.asterix.om.base.AMutableDouble;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -41,7 +41,6 @@
 public class ADoubleConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "double", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -212,7 +211,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.DOUBLE_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADurationConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADurationConstructorDescriptor.java
index 977bee1..f0660f5 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADurationConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ADurationConstructorDescriptor.java
@@ -16,13 +16,13 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ADuration;
 import edu.uci.ics.asterix.om.base.AMutableDuration;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.temporal.ADurationParser;
 import edu.uci.ics.asterix.om.base.temporal.ByteArrayCharSequenceAccessor;
+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.asterix.om.types.ATypeTag;
@@ -40,7 +40,6 @@
 public class ADurationConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "duration", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
@@ -105,7 +104,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.DURATION_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AFloatConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AFloatConstructorDescriptor.java
index df5ed8c..dde302c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AFloatConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AFloatConstructorDescriptor.java
@@ -17,12 +17,12 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AFloat;
 import edu.uci.ics.asterix.om.base.AMutableFloat;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -41,7 +41,6 @@
 public class AFloatConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "float", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -215,6 +214,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.FLOAT_CONSTRUCTOR;
     }
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt16ConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt16ConstructorDescriptor.java
index 41ac615..3cb9d46 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt16ConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt16ConstructorDescriptor.java
@@ -17,11 +17,11 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt16;
 import edu.uci.ics.asterix.om.base.AMutableInt16;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -39,7 +39,6 @@
 public class AInt16ConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "int16", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -121,7 +120,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.INT16_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt32ConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt32ConstructorDescriptor.java
index 1327b30..0091bbb 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt32ConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt32ConstructorDescriptor.java
@@ -17,11 +17,11 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -39,7 +39,6 @@
 public class AInt32ConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "int32", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -120,7 +119,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.INT32_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt64ConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt64ConstructorDescriptor.java
index de480fa..15e3e72 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt64ConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt64ConstructorDescriptor.java
@@ -17,11 +17,11 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -39,7 +39,6 @@
 public class AInt64ConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "int64", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -121,7 +120,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.INT64_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt8ConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt8ConstructorDescriptor.java
index 8721116..c14b4fa 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt8ConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AInt8ConstructorDescriptor.java
@@ -17,11 +17,11 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt8;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -39,7 +39,6 @@
 public class AInt8ConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "int8", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -121,7 +120,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.INT8_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ALineConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ALineConstructorDescriptor.java
index 84e7295..f287141 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ALineConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ALineConstructorDescriptor.java
@@ -17,12 +17,12 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ALine;
 import edu.uci.ics.asterix.om.base.AMutableLine;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -40,7 +40,6 @@
 public class ALineConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "line", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -105,7 +104,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.LINE_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ANullConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ANullConstructorDescriptor.java
index 89ea420..df00c74 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ANullConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ANullConstructorDescriptor.java
@@ -17,10 +17,10 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -39,7 +39,6 @@
 public class ANullConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "null", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
@@ -93,7 +92,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NULL_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APoint3DConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APoint3DConstructorDescriptor.java
index 4ae4725..3c9a8b4 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APoint3DConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APoint3DConstructorDescriptor.java
@@ -17,11 +17,11 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutablePoint3D;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.APoint3D;
+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.asterix.om.types.ATypeTag;
@@ -39,7 +39,6 @@
 public class APoint3DConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "point3d", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -101,7 +100,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.POINT3D_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APointConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APointConstructorDescriptor.java
index dc3234e..89c4baf 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APointConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APointConstructorDescriptor.java
@@ -17,11 +17,11 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.APoint;
+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.asterix.om.types.ATypeTag;
@@ -39,7 +39,6 @@
 public class APointConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "point", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -97,7 +96,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.POINT_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APolygonConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APolygonConstructorDescriptor.java
index b856bff..e17a212 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APolygonConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/APolygonConstructorDescriptor.java
@@ -17,10 +17,10 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -38,7 +38,6 @@
 public class APolygonConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "polygon", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_POLYGON_TYPE_TAG = ATypeTag.POLYGON.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
@@ -98,7 +97,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.POLYGON_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ARectangleConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ARectangleConstructorDescriptor.java
index 9d2385f..916690c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ARectangleConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ARectangleConstructorDescriptor.java
@@ -17,12 +17,12 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.AMutableRectangle;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.ARectangle;
+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.asterix.om.types.ATypeTag;
@@ -40,7 +40,6 @@
 public class ARectangleConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "rectangle", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -109,7 +108,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.RECTANGLE_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AStringConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AStringConstructorDescriptor.java
index 70b35e3..54ab21f 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AStringConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AStringConstructorDescriptor.java
@@ -17,9 +17,9 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -37,7 +37,6 @@
 public class AStringConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "string", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -87,7 +86,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ATimeConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ATimeConstructorDescriptor.java
index 48c06b0..c9d01f8 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ATimeConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/ATimeConstructorDescriptor.java
@@ -17,13 +17,13 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutableTime;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.ATime;
-import edu.uci.ics.asterix.om.base.temporal.ByteArrayCharSequenceAccessor;
 import edu.uci.ics.asterix.om.base.temporal.ADateAndTimeParser;
+import edu.uci.ics.asterix.om.base.temporal.ByteArrayCharSequenceAccessor;
+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.asterix.om.types.ATypeTag;
@@ -41,7 +41,6 @@
 public class ATimeConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "time", 1);
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     private final static ByteArrayCharSequenceAccessor charAccessor = new ByteArrayCharSequenceAccessor();
@@ -106,7 +105,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.TIME_CONSTRUCTOR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractBinaryStringBoolEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractBinaryStringBoolEval.java
index 1a4b3e0..03a0ba8 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractBinaryStringBoolEval.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractBinaryStringBoolEval.java
@@ -1,5 +1,10 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
+import java.io.DataOutput;
+import java.util.Arrays;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.AString;
@@ -12,10 +17,6 @@
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
-import java.io.DataOutput;
-import java.util.Arrays;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 public abstract class AbstractBinaryStringBoolEval implements ICopyEvaluator {
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractNumericArithmeticEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractNumericArithmeticEval.java
index b2d420b..f585965 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractNumericArithmeticEval.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractNumericArithmeticEval.java
@@ -21,9 +21,9 @@
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
-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;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractQuadStringStringEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractQuadStringStringEval.java
index 1a59340..37a9d20 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractQuadStringStringEval.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractQuadStringStringEval.java
@@ -4,6 +4,11 @@
  */
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.regex.Pattern;
+
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutableString;
 import edu.uci.ics.asterix.om.base.ANull;
@@ -17,10 +22,6 @@
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
-import java.io.DataOutput;
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.regex.Pattern;
 
 /**
  * @author ilovesoup
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringBoolEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringBoolEval.java
index d8637ad..a0c963b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringBoolEval.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringBoolEval.java
@@ -1,5 +1,9 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
+import java.io.DataOutput;
+import java.util.Arrays;
+import java.util.regex.Pattern;
+
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.AString;
@@ -12,9 +16,6 @@
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
-import java.io.DataOutput;
-import java.util.Arrays;
-import java.util.regex.Pattern;
 
 /**
  * @author Xiaoyu Ma
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringStringEval.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringStringEval.java
index 7179cbf..e38fe8a 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringStringEval.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AbstractTripleStringStringEval.java
@@ -1,5 +1,10 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.regex.Pattern;
+
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutableString;
 import edu.uci.ics.asterix.om.base.ANull;
@@ -13,10 +18,6 @@
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
-import java.io.DataOutput;
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.regex.Pattern;
 
 /**
  * @author Xiaoyu Ma
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AndDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AndDescriptor.java
index e9dab9d..b2fc6da 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AndDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AndDescriptor.java
@@ -4,13 +4,13 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
@@ -23,8 +23,6 @@
 public class AndDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS,
-            "and", FunctionIdentifier.VARARGS);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
 
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -35,7 +33,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.AND;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AnyCollectionMemberDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AnyCollectionMemberDescriptor.java
index 175db39..e080a39 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AnyCollectionMemberDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/AnyCollectionMemberDescriptor.java
@@ -4,11 +4,11 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -28,8 +28,6 @@
 public class AnyCollectionMemberDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "any-collection-member", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new AnyCollectionMemberDescriptor();
@@ -43,7 +41,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.ANY_COLLECTION_MEMBER;
     }
 
     private static class AnyCollectionMemberEvalFactory implements ICopyEvaluatorFactory {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastRecordDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastRecordDescriptor.java
index 4182824..4c0a201 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastRecordDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastRecordDescriptor.java
@@ -2,7 +2,7 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ARecordType;
@@ -22,8 +22,6 @@
 
 public class CastRecordDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
-    protected static final FunctionIdentifier FID_CAST = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "cast-record", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CastRecordDescriptor();
@@ -41,7 +39,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID_CAST;
+        return AsterixBuiltinFunctions.CAST_RECORD;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ClosedRecordConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ClosedRecordConstructorDescriptor.java
index d92aff9..ac6bfe5 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ClosedRecordConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ClosedRecordConstructorDescriptor.java
@@ -1,6 +1,7 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ARecordType;
@@ -11,8 +12,6 @@
 
 public class ClosedRecordConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
-    protected static final FunctionIdentifier FID_CLOSED = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "closed-record-constructor", FunctionIdentifier.VARARGS);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new ClosedRecordConstructorDescriptor();
@@ -29,7 +28,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID_CLOSED;
+        return AsterixBuiltinFunctions.CLOSED_RECORD_CONSTRUCTOR;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodePointToStringDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodePointToStringDescriptor.java
index f23df3a..5dcb838 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodePointToStringDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodePointToStringDescriptor.java
@@ -1,19 +1,22 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
+import java.io.DataOutput;
+import java.io.IOException;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
@@ -21,8 +24,6 @@
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
-import java.io.DataOutput;
-import java.io.IOException;
 
 /**
  * @author Xiaoyu Ma
@@ -30,8 +31,6 @@
 public class CodePointToStringDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "codepoint-to-string", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CodePointToStringDescriptor();
@@ -147,6 +146,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CODEPOINT_TO_STRING;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ContainsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ContainsDescriptor.java
index 5e558be..f2bb83c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ContainsDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/ContainsDescriptor.java
@@ -2,7 +2,7 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -16,7 +16,6 @@
 public class ContainsDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "contains", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new ContainsDescriptor();
@@ -76,7 +75,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CONTAINS;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedGramTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedGramTokensDescriptor.java
index 184d974..a54515d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedGramTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedGramTokensDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -19,8 +19,6 @@
 public class CountHashedGramTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "counthashed-gram-tokens", 3);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CountHashedGramTokensDescriptor();
@@ -29,7 +27,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.COUNTHASHED_GRAM_TOKENS;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedWordTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedWordTokensDescriptor.java
index 7bfbe49..4ddc57a 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedWordTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CountHashedWordTokensDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -20,8 +20,6 @@
 public class CountHashedWordTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "counthashed-word-tokens", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CountHashedWordTokensDescriptor();
@@ -30,7 +28,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.COUNTHASHED_WORD_TOKENS;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateCircleDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateCircleDescriptor.java
index 45ea698..5cef4da 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateCircleDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateCircleDescriptor.java
@@ -3,7 +3,6 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
@@ -11,6 +10,7 @@
 import edu.uci.ics.asterix.om.base.ACircle;
 import edu.uci.ics.asterix.om.base.AMutableCircle;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
+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.asterix.om.types.BuiltinType;
@@ -27,8 +27,6 @@
 public class CreateCircleDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "create-circle",
-            2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CreateCircleDescriptor();
@@ -82,7 +80,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_CIRCLE;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateLineDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateLineDescriptor.java
index f234dc4..42931b8 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateLineDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateLineDescriptor.java
@@ -3,7 +3,6 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
@@ -11,6 +10,7 @@
 import edu.uci.ics.asterix.om.base.ALine;
 import edu.uci.ics.asterix.om.base.AMutableLine;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
+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.asterix.om.types.BuiltinType;
@@ -27,7 +27,6 @@
 public class CreateLineDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "create-line", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CreateLineDescriptor();
@@ -84,7 +83,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_LINE;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateMBRDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateMBRDescriptor.java
index b1c3564..ad6f6d4 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateMBRDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateMBRDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -12,7 +12,6 @@
 public class CreateMBRDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "create-mbr", 3);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CreateMBRDescriptor();
@@ -26,7 +25,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_MBR;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePointDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePointDescriptor.java
index 6cbcba5..6099ab6 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePointDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePointDescriptor.java
@@ -3,11 +3,11 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.APoint;
+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.asterix.om.types.BuiltinType;
@@ -24,7 +24,6 @@
 public class CreatePointDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "create-point", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CreatePointDescriptor();
@@ -74,7 +73,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_POINT;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePolygonDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePolygonDescriptor.java
index 26b3ad9..4bd45bb 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePolygonDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreatePolygonDescriptor.java
@@ -3,7 +3,7 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -19,8 +19,6 @@
 public class CreatePolygonDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "create-polygon",
-            FunctionIdentifier.VARARGS);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CreatePolygonDescriptor();
@@ -76,7 +74,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_POLYGON;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateRectangleDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateRectangleDescriptor.java
index 01c33df..480486d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateRectangleDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CreateRectangleDescriptor.java
@@ -3,7 +3,6 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
@@ -11,6 +10,7 @@
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.AMutableRectangle;
 import edu.uci.ics.asterix.om.base.ARectangle;
+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.asterix.om.types.BuiltinType;
@@ -27,8 +27,6 @@
 public class CreateRectangleDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "create-rectangle", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new CreateRectangleDescriptor();
@@ -88,7 +86,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.CREATE_RECTANGLE;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceCheckDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceCheckDescriptor.java
index fc65b8e..02e91b9 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceCheckDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceCheckDescriptor.java
@@ -7,6 +7,7 @@
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
+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.asterix.om.types.AOrderedListType;
@@ -27,8 +28,6 @@
 public class EditDistanceCheckDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "edit-distance-check", 3);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new EditDistanceCheckDescriptor();
@@ -49,7 +48,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK;
     }
 
     private static class EditDistanceCheckEvaluator extends EditDistanceEvaluator {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceDescriptor.java
index 411e809..7cb44cb 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -14,8 +14,6 @@
 public class EditDistanceDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "edit-distance",
-            2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new EditDistanceDescriptor();
@@ -36,7 +34,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.EDIT_DISTANCE;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceListIsFilterable.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceListIsFilterable.java
index 7ebeee6..7c47cad 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceListIsFilterable.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceListIsFilterable.java
@@ -2,11 +2,11 @@
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
+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.asterix.om.types.ATypeTag;
@@ -33,8 +33,6 @@
 public class EditDistanceListIsFilterable extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "edit-distance-list-is-filterable", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new EditDistanceListIsFilterable();
@@ -55,7 +53,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.EDIT_DISTANCE_LIST_IS_FILTERABLE;
     }
 
     private static class EditDistanceListIsFilterableEvaluator implements ICopyEvaluator {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceStringIsFilterable.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceStringIsFilterable.java
index 8288456..e8571bf 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceStringIsFilterable.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EditDistanceStringIsFilterable.java
@@ -2,9 +2,9 @@
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
+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.asterix.om.types.ATypeTag;
@@ -33,8 +33,6 @@
 public class EditDistanceStringIsFilterable extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "edit-distance-string-is-filterable", 4);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new EditDistanceStringIsFilterable();
@@ -55,7 +53,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.EDIT_DISTANCE_STRING_IS_FILTERABLE;
     }
 
     private static class EditDistanceStringIsFilterableEvaluator implements ICopyEvaluator {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EmbedTypeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EmbedTypeDescriptor.java
index 4c0c704..1477106 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EmbedTypeDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EmbedTypeDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.IAType;
@@ -15,7 +15,6 @@
 public class EmbedTypeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "embed-type", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new EmbedTypeDescriptor();
@@ -52,7 +51,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.EMBED_TYPE;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EndsWithDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EndsWithDescriptor.java
index bcf85fe..d5d74bb 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EndsWithDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/EndsWithDescriptor.java
@@ -2,7 +2,7 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -16,7 +16,6 @@
 public class EndsWithDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "ends-with", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new EndsWithDescriptor();
@@ -72,7 +71,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.ENDS_WITH;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByIndexDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByIndexDescriptor.java
index 2bb81ad..e4aa596 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByIndexDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByIndexDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ARecordType;
@@ -12,8 +12,6 @@
 public class FieldAccessByIndexDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "field-access-by-index", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new FieldAccessByIndexDescriptor();
@@ -28,7 +26,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.FIELD_ACCESS_BY_INDEX;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByNameDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByNameDescriptor.java
index bdc0dff..3c4e6d8 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByNameDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FieldAccessByNameDescriptor.java
@@ -8,6 +8,7 @@
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARecordSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -27,8 +28,6 @@
 public class FieldAccessByNameDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "field-access-by-name", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new FieldAccessByNameDescriptor();
@@ -37,7 +36,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.FIELD_ACCESS_BY_NAME;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FuzzyEqDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FuzzyEqDescriptor.java
index 9ad2f2b..b9f9d5e 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FuzzyEqDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/FuzzyEqDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -12,7 +12,6 @@
 public class FuzzyEqDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "fuzzy-eq", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new FuzzyEqDescriptor();
@@ -26,7 +25,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.FUZZY_EQ;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GetItemDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GetItemDescriptor.java
index cbc61cf..ca65c11 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GetItemDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GetItemDescriptor.java
@@ -4,10 +4,10 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -28,7 +28,6 @@
 public class GetItemDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-item", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new GetItemDescriptor();
@@ -42,7 +41,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.GET_ITEM;
     }
 
     private static class GetItemEvalFactory implements ICopyEvaluatorFactory {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GramTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GramTokensDescriptor.java
index 558ae7e..1e3ea24 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GramTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/GramTokensDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -19,7 +19,6 @@
 public class GramTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "gram-tokens", 3);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new GramTokensDescriptor();
@@ -28,7 +27,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.GRAM_TOKENS;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedGramTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedGramTokensDescriptor.java
index 04088a2..66e2f5f 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedGramTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedGramTokensDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -19,8 +19,6 @@
 public class HashedGramTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "hashed-gram-tokens", 3);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new HashedGramTokensDescriptor();
@@ -29,7 +27,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.HASHED_GRAM_TOKENS;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedWordTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedWordTokensDescriptor.java
index dcd5f70..848fb68 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedWordTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/HashedWordTokensDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -20,8 +20,6 @@
 public class HashedWordTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "hashed-word-tokens", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new HashedWordTokensDescriptor();
@@ -30,7 +28,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.HASHED_WORD_TOKENS;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/InjectFailureDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/InjectFailureDescriptor.java
index 000c387..3247475 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/InjectFailureDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/InjectFailureDescriptor.java
@@ -2,8 +2,8 @@
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ABooleanSerializerDeserializer;
+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.asterix.om.types.ATypeTag;
@@ -20,8 +20,6 @@
 public class InjectFailureDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "inject-failure", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new InjectFailureDescriptor();
@@ -30,7 +28,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.INJECT_FAILURE;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/IsNullDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/IsNullDescriptor.java
index 4f3a83c..c25de2d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/IsNullDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/IsNullDescriptor.java
@@ -4,12 +4,12 @@
 
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AObjectSerializerDeserializer;
 import edu.uci.ics.asterix.om.base.ABoolean;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
@@ -22,8 +22,6 @@
 
     private static final long serialVersionUID = 1L;
 
-    public final static FunctionIdentifier FID = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS,
-            "is-null", 1);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
@@ -64,7 +62,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.IS_NULL;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LenDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LenDescriptor.java
index 2b354e0..abea4e3 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LenDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LenDescriptor.java
@@ -3,13 +3,13 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -28,7 +28,6 @@
 public class LenDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "len", 1);
     private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
     private final static byte SER_UNORDEREDLIST_TYPE_TAG = ATypeTag.UNORDEREDLIST.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
@@ -102,7 +101,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.LEN;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LikeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LikeDescriptor.java
index 2d7d4ae..4344f33 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LikeDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/LikeDescriptor.java
@@ -7,13 +7,13 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.AString;
+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.asterix.om.types.ATypeTag;
@@ -39,7 +39,6 @@
 public class LikeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "like", 2);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
@@ -49,7 +48,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.LIKE;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotDescriptor.java
index dc7dcd2..41ec790 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NotDescriptor.java
@@ -6,13 +6,13 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
@@ -25,8 +25,6 @@
 public class NotDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS,
-            "not", 1);
 
     private final static byte SER_BOOLEAN_TYPE_TAG = ATypeTag.BOOLEAN.serialize();
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
@@ -38,7 +36,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NOT;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAbsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAbsDescriptor.java
index 01cc999..c013750 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAbsDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAbsDescriptor.java
@@ -7,7 +7,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -22,17 +21,18 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
-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;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
@@ -41,7 +41,6 @@
 
 public class NumericAbsDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "numeric-abs", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericAbsDescriptor();
@@ -50,7 +49,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_ABS;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAddDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAddDescriptor.java
index c2791b9..0181698 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAddDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericAddDescriptor.java
@@ -1,16 +1,14 @@
 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.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
 
 public class NumericAddDescriptor extends AbstractNumericArithmeticEval {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS,
-            "numeric-add", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericAddDescriptor();
@@ -19,7 +17,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_ADD;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericCeilingDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericCeilingDescriptor.java
index 9c52846..14d1f78 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericCeilingDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericCeilingDescriptor.java
@@ -7,7 +7,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -22,17 +21,18 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
-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;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
@@ -42,8 +42,6 @@
 public class NumericCeilingDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-ceiling", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericCeilingDescriptor();
@@ -52,7 +50,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_CEILING;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericDivideDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericDivideDescriptor.java
index 87a4257..4cc3e03 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericDivideDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericDivideDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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;
@@ -9,8 +9,6 @@
 public class NumericDivideDescriptor extends AbstractNumericArithmeticEval {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "numeric-divide",
-            2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericDivideDescriptor();
@@ -19,7 +17,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_DIVIDE;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java
index 6626a12..99dd240 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java
@@ -7,7 +7,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -22,17 +21,18 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
-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;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
@@ -41,8 +41,6 @@
 
 public class NumericFloorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "numeric-floor",
-            1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericFloorDescriptor();
@@ -51,7 +49,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_FLOOR;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericModuloDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericModuloDescriptor.java
index a38c4e2..b7fba62 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericModuloDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericModuloDescriptor.java
@@ -16,7 +16,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -31,6 +30,7 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -54,7 +54,6 @@
 public class NumericModuloDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "numeric-mod", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericModuloDescriptor();
@@ -63,7 +62,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_MOD;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericMultiplyDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericMultiplyDescriptor.java
index 606f2ec..2dcb349 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericMultiplyDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericMultiplyDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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;
@@ -9,8 +9,6 @@
 public class NumericMultiplyDescriptor extends AbstractNumericArithmeticEval {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-multiply", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericMultiplyDescriptor();
@@ -19,7 +17,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_MULTIPLY;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundDescriptor.java
index 588877c..bc565ce 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundDescriptor.java
@@ -7,7 +7,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -22,17 +21,18 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
-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;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
@@ -41,8 +41,6 @@
 
 public class NumericRoundDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "numeric-round",
-            1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericRoundDescriptor();
@@ -51,7 +49,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_ROUND;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEven2Descriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEven2Descriptor.java
index 43bed94..06cf69a 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEven2Descriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEven2Descriptor.java
@@ -5,34 +5,44 @@
  */
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.*;
+import java.io.DataOutput;
+import java.math.BigDecimal;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.*;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
-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;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
-import java.io.DataOutput;
-import java.math.BigDecimal;
 
 public class NumericRoundHalfToEven2Descriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-round-half-to-even2", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericRoundHalfToEven2Descriptor();
@@ -41,7 +51,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_ROUND_HALF_TO_EVEN2;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEvenDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEvenDescriptor.java
index af61a52..1b54090 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEvenDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericRoundHalfToEvenDescriptor.java
@@ -5,32 +5,42 @@
  */
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
-import edu.uci.ics.asterix.dataflow.data.nontagged.serde.*;
+import java.io.DataOutput;
+
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt64SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt8SerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
-import edu.uci.ics.asterix.om.base.*;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.base.AMutableFloat;
+import edu.uci.ics.asterix.om.base.AMutableInt16;
+import edu.uci.ics.asterix.om.base.AMutableInt32;
+import edu.uci.ics.asterix.om.base.AMutableInt64;
+import edu.uci.ics.asterix.om.base.AMutableInt8;
+import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
-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;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
-import java.io.DataOutput;
 
 public class NumericRoundHalfToEvenDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-round-half-to-even", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericRoundHalfToEvenDescriptor();
@@ -39,7 +49,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_ROUND_HALF_TO_EVEN;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericSubtractDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericSubtractDescriptor.java
index 1eb1119..7ce452e 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericSubtractDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericSubtractDescriptor.java
@@ -2,7 +2,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -17,6 +16,7 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -37,8 +37,6 @@
 public class NumericSubtractDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-subtract", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericSubtractDescriptor();
@@ -47,7 +45,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_SUBTRACT;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericUnaryMinusDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericUnaryMinusDescriptor.java
index cabd44b..6fec336 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericUnaryMinusDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericUnaryMinusDescriptor.java
@@ -2,7 +2,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
@@ -17,6 +16,7 @@
 import edu.uci.ics.asterix.om.base.AMutableInt64;
 import edu.uci.ics.asterix.om.base.AMutableInt8;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -37,8 +37,6 @@
 public class NumericUnaryMinusDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "numeric-unary-minus", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new NumericUnaryMinusDescriptor();
@@ -130,7 +128,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.NUMERIC_UNARY_MINUS;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OpenRecordConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OpenRecordConstructorDescriptor.java
index 59689d1..77869ba 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OpenRecordConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OpenRecordConstructorDescriptor.java
@@ -4,7 +4,7 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.builders.RecordBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ARecordType;
@@ -20,8 +20,6 @@
 
 public class OpenRecordConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
-    protected static final FunctionIdentifier FID_OPEN = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "open-record-constructor", FunctionIdentifier.VARARGS);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new OpenRecordConstructorDescriptor();
@@ -39,7 +37,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID_OPEN;
+        return AsterixBuiltinFunctions.OPEN_RECORD_CONSTRUCTOR;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrDescriptor.java
index 9fc30f6..44bba5c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrDescriptor.java
@@ -4,13 +4,13 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
@@ -23,8 +23,6 @@
 public class OrDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(AlgebricksBuiltinFunctions.ALGEBRICKS_NS, "or",
-            FunctionIdentifier.VARARGS);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
@@ -34,7 +32,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.OR;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java
index 496c524..e9a2154 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java
@@ -4,7 +4,7 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.AOrderedListType;
@@ -21,8 +21,6 @@
 public class OrderedListConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "ordered-list-constructor", FunctionIdentifier.VARARGS);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new OrderedListConstructorDescriptor();
@@ -37,7 +35,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.ORDERED_LIST_CONSTRUCTOR;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenDescriptor.java
index 61f4c21..019f655 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenDescriptor.java
@@ -27,7 +27,7 @@
 public class PrefixLenDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "prefix-len", 3);
+    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "prefix-len@3", 3);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new PrefixLenDescriptor();
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenJaccardDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenJaccardDescriptor.java
index 9874991..4138932 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenJaccardDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/PrefixLenJaccardDescriptor.java
@@ -3,11 +3,11 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AFloatSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
+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.asterix.om.types.BuiltinType;
@@ -26,8 +26,6 @@
 public class PrefixLenJaccardDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "prefix-len-jaccard", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new PrefixLenJaccardDescriptor();
@@ -92,7 +90,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.PREFIX_LEN_JACCARD;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/RegExpDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/RegExpDescriptor.java
index f225db7..be01d28 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/RegExpDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/RegExpDescriptor.java
@@ -6,13 +6,13 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.ANull;
 import edu.uci.ics.asterix.om.base.AString;
+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.asterix.om.types.ATypeTag;
@@ -38,7 +38,6 @@
 public class RegExpDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "reg-exp", 2);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
@@ -48,7 +47,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.REG_EXP;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityDescriptor.java
index 3fe3a29..a2d9cc7 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityDescriptor.java
@@ -35,7 +35,7 @@
 public class SimilarityDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "similarity", 7);
+    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "similarity@7", 7);
 
     private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
     private final static byte SER_UNORDEREDLIST_TYPE_TAG = ATypeTag.UNORDEREDLIST.serialize();
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardCheckDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardCheckDescriptor.java
index c50af79..eb13fde 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardCheckDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardCheckDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -14,8 +14,6 @@
 public class SimilarityJaccardCheckDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard-check", 3);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SimilarityJaccardCheckDescriptor();
@@ -36,6 +34,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD_CHECK;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardDescriptor.java
index 77d9dba..f5f9caf 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -14,8 +14,6 @@
 public class SimilarityJaccardDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SimilarityJaccardDescriptor();
@@ -36,7 +34,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixCheckDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixCheckDescriptor.java
index 501c32f..7675dd3 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixCheckDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixCheckDescriptor.java
@@ -4,11 +4,11 @@
 
 import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
 import edu.uci.ics.asterix.om.base.AFloat;
 import edu.uci.ics.asterix.om.base.AMutableFloat;
+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.asterix.om.types.AOrderedListType;
@@ -27,8 +27,6 @@
 
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard-prefix-check", 6);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SimilarityJaccardPrefixCheckDescriptor();
@@ -49,7 +47,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD_PREFIX_CHECK;
     }
 
     private static class SimilarityJaccardPrefixCheckEvaluator extends SimilarityJaccardPrefixEvaluator {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixDescriptor.java
index 1994de9..3c2f981 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardPrefixDescriptor.java
@@ -1,6 +1,7 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -14,8 +15,6 @@
 public class SimilarityJaccardPrefixDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard-prefix", 6);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SimilarityJaccardPrefixDescriptor();
@@ -36,7 +35,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD_PREFIX;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedCheckDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedCheckDescriptor.java
index 7e28a0a..962f736 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedCheckDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedCheckDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -15,8 +15,6 @@
 public class SimilarityJaccardSortedCheckDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard-sorted-check", 3);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SimilarityJaccardSortedCheckDescriptor();
@@ -37,6 +35,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD_SORTED_CHECK;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedDescriptor.java
index 1877ea6..d14801c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SimilarityJaccardSortedDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -15,8 +15,6 @@
 public class SimilarityJaccardSortedDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "similarity-jaccard-sorted", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SimilarityJaccardSortedDescriptor();
@@ -37,7 +35,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SIMILARITY_JACCARD_SORTED;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialAreaDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialAreaDescriptor.java
index c641f1a..c412085 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialAreaDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialAreaDescriptor.java
@@ -3,12 +3,12 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer;
+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.asterix.om.types.ATypeTag;
@@ -28,7 +28,6 @@
 public class SpatialAreaDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "spatial-area", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SpatialAreaDescriptor();
@@ -107,7 +106,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SPATIAL_AREA;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialCellDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialCellDescriptor.java
index 1426f91..3e14c39 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialCellDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialCellDescriptor.java
@@ -3,7 +3,6 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
@@ -11,6 +10,7 @@
 import edu.uci.ics.asterix.om.base.AMutablePoint;
 import edu.uci.ics.asterix.om.base.AMutableRectangle;
 import edu.uci.ics.asterix.om.base.ARectangle;
+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.asterix.om.types.ATypeTag;
@@ -30,7 +30,6 @@
 public class SpatialCellDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "spatial-cell", 4);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SpatialCellDescriptor();
@@ -111,7 +110,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SPATIAL_CELL;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialDistanceDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialDistanceDescriptor.java
index d83f62e..8d867ed 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialDistanceDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialDistanceDescriptor.java
@@ -3,10 +3,10 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
+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.asterix.om.types.ATypeTag;
@@ -25,8 +25,6 @@
 public class SpatialDistanceDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "spatial-distance", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SpatialDistanceDescriptor();
@@ -95,7 +93,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SPATIAL_DISTANCE;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialIntersectDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialIntersectDescriptor.java
index 25a03fe..bd3aef5 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialIntersectDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SpatialIntersectDescriptor.java
@@ -2,7 +2,6 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
@@ -14,6 +13,7 @@
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.om.base.ABoolean;
+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.asterix.om.types.ATypeTag;
@@ -36,8 +36,6 @@
 public class SpatialIntersectDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "spatial-intersect", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SpatialIntersectDescriptor();
@@ -1059,7 +1057,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SPATIAL_INTERSECT;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StartsWithDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StartsWithDescriptor.java
index 015a94b..4ac02cf 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StartsWithDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StartsWithDescriptor.java
@@ -2,7 +2,7 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -16,7 +16,6 @@
 public class StartsWithDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "starts-with", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StartsWithDescriptor();
@@ -65,7 +64,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STARTS_WITH;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringConcatDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringConcatDescriptor.java
index 2b53f35..f975579 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringConcatDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringConcatDescriptor.java
@@ -7,6 +7,7 @@
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -30,18 +31,16 @@
 public class StringConcatDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "string-concat",
-            1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringConcatDescriptor();
         }
     };
-    
+
     @Override
     public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) {
         return new ICopyEvaluatorFactory() {
-            
+
             private static final long serialVersionUID = 1L;
 
             @Override
@@ -111,6 +110,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_CONCAT;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEndWithDescrtiptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEndWithDescrtiptor.java
index 2c2ad2e..aed2199 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEndWithDescrtiptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEndWithDescrtiptor.java
@@ -4,27 +4,26 @@
  */
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import java.io.DataOutput;
+
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 
-import java.io.DataOutput;
-
 /**
  * @author Xiaoyu Ma
  */
 public class StringEndWithDescrtiptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "end-with", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringEndWithDescrtiptor();
@@ -73,6 +72,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_END_WITH;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEqualDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEqualDescriptor.java
index 2f6237f..f71b09f 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEqualDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEqualDescriptor.java
@@ -1,27 +1,25 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import java.io.DataOutput;
+
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 
-import java.io.DataOutput;
-
 /**
  * @author Xiaoyu Ma
  */
 public class StringEqualDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "string-equal",
-            2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringEqualDescriptor();
@@ -69,6 +67,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_EQUAL;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringJoinDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringJoinDescriptor.java
index 5bbc9df3..c379c3e3 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringJoinDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringJoinDescriptor.java
@@ -1,18 +1,21 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
+import java.io.DataOutput;
+import java.io.IOException;
+
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.EnumDeserializer;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
@@ -21,8 +24,6 @@
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
-import java.io.DataOutput;
-import java.io.IOException;
 
 /**
  * @author Xiaoyu Ma
@@ -30,7 +31,6 @@
 public class StringJoinDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "string-join", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringJoinDescriptor();
@@ -132,6 +132,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_JOIN;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLengthDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLengthDescriptor.java
index 8f44d7d..bb39b49 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLengthDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLengthDescriptor.java
@@ -1,17 +1,20 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import java.io.DataOutput;
+import java.io.IOException;
+
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
@@ -19,14 +22,10 @@
 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 java.io.DataOutput;
-import java.io.IOException;
 
 public class StringLengthDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "string-length",
-            1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringLengthDescriptor();
@@ -82,7 +81,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_LENGTH;
     }
 
 }
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLowerCaseDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLowerCaseDescriptor.java
index 25a966e..6bc79ac 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLowerCaseDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringLowerCaseDescriptor.java
@@ -1,15 +1,19 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
+import java.io.DataOutput;
+import java.io.IOException;
+
 import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
@@ -18,8 +22,6 @@
 import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
 import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
 import edu.uci.ics.hyracks.dataflow.common.data.util.StringUtils;
-import java.io.DataOutput;
-import java.io.IOException;
 
 /**
  * @author Xiaoyu Ma
@@ -27,7 +29,6 @@
 public class StringLowerCaseDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "lowercase", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringLowerCaseDescriptor();
@@ -92,7 +93,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_LOWERCASE;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesDescriptor.java
index a021961..75814df 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesDescriptor.java
@@ -6,11 +6,11 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AString;
+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.asterix.om.types.BuiltinType;
@@ -32,7 +32,6 @@
 public class StringMatchesDescriptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "matches", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringMatchesDescriptor();
@@ -107,6 +106,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_MATCHES;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesWithFlagDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesWithFlagDescriptor.java
index df5e587..31dde5b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesWithFlagDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringMatchesWithFlagDescriptor.java
@@ -10,11 +10,11 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AString;
+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.asterix.om.types.BuiltinType;
@@ -36,7 +36,6 @@
 public class StringMatchesWithFlagDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "matches2", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringMatchesWithFlagDescriptor();
@@ -134,6 +133,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_MATCHES_WITH_FLAG;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceDescriptor.java
index ecc8b34..32af44e 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceDescriptor.java
@@ -11,6 +11,7 @@
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AString;
+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.asterix.om.types.BuiltinType;
@@ -32,7 +33,6 @@
 public class StringReplaceDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "replace", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringReplaceDescriptor();
@@ -135,6 +135,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_REPLACE;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceWithFlagsDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceWithFlagsDescriptor.java
index 84b6ca3..e665654 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceWithFlagsDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringReplaceWithFlagsDescriptor.java
@@ -6,11 +6,11 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.common.utils.UTF8CharSequence;
 import edu.uci.ics.asterix.formats.nontagged.AqlBinaryComparatorFactoryProvider;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AString;
+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.asterix.om.types.BuiltinType;
@@ -32,7 +32,6 @@
 public class StringReplaceWithFlagsDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "replace2", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringReplaceWithFlagsDescriptor();
@@ -158,6 +157,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_REPLACE_WITH_FLAG;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringStartWithDescrtiptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringStartWithDescrtiptor.java
index 18009d2..e7f2576 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringStartWithDescrtiptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringStartWithDescrtiptor.java
@@ -2,7 +2,7 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -20,7 +20,6 @@
 public class StringStartWithDescrtiptor extends AbstractScalarFunctionDynamicDescriptor {
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "start-with", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringStartWithDescrtiptor();
@@ -67,6 +66,6 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_START_WITH;
     }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringToCodePointDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringToCodePointDescriptor.java
index 45f5efc..f8288ea 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringToCodePointDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringToCodePointDescriptor.java
@@ -5,11 +5,11 @@
 
 import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
 import edu.uci.ics.asterix.builders.OrderedListBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.AOrderedListType;
@@ -33,8 +33,6 @@
 
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "string-to-codepoint", 1);
     public static final IFunctionDescriptorFactory FACTORY1 = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new StringToCodePointDescriptor();
@@ -141,7 +139,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.STRING_TO_CODEPOINT;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/Substring2Descriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/Substring2Descriptor.java
index eff1ec9..338c9a9 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/Substring2Descriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/Substring2Descriptor.java
@@ -3,7 +3,7 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -21,7 +21,6 @@
 public class Substring2Descriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "substring2", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new Substring2Descriptor();
@@ -85,7 +84,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SUBSTRING2;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringAfterDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringAfterDescriptor.java
index 8e88ac8..7594dd2 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringAfterDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringAfterDescriptor.java
@@ -1,26 +1,25 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import java.io.DataOutput;
+import java.io.IOException;
+
+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.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
-import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
 import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
 import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
 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 java.io.DataOutput;
-import java.io.IOException;
 
 public class SubstringAfterDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "substring-after", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SubstringAfterDescriptor();
@@ -95,7 +94,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SUBSTRING_AFTER;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java
index 081941a..2c53756 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java
@@ -3,7 +3,7 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -20,8 +20,6 @@
 public class SubstringBeforeDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "substring-before", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SubstringBeforeDescriptor();
@@ -95,7 +93,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SUBSTRING_BEFORE;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringDescriptor.java
index ad132fb..480f4a2 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringDescriptor.java
@@ -3,7 +3,7 @@
 import java.io.DataOutput;
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -21,7 +21,6 @@
 public class SubstringDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "substring", 3);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SubstringDescriptor();
@@ -95,7 +94,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SUBSTRING;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SwitchCaseDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SwitchCaseDescriptor.java
index 7f95051..ac62f96 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SwitchCaseDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SwitchCaseDescriptor.java
@@ -2,7 +2,7 @@
 
 import java.io.IOException;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
@@ -18,8 +18,6 @@
 public class SwitchCaseDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "switch-case",
-            FunctionIdentifier.VARARGS);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new SwitchCaseDescriptor();
@@ -28,7 +26,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SWITCH_CASE;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/UnorderedListConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/UnorderedListConstructorDescriptor.java
index c38a68c..3e8a606 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/UnorderedListConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/UnorderedListConstructorDescriptor.java
@@ -4,7 +4,7 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.builders.UnorderedListBuilder;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -21,8 +21,6 @@
 public class UnorderedListConstructorDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "unordered-list-constructor", FunctionIdentifier.VARARGS);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new UnorderedListConstructorDescriptor();
@@ -37,7 +35,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.UNORDERED_LIST_CONSTRUCTOR;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/WordTokensDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/WordTokensDescriptor.java
index 5e9065b..b0ece87 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/WordTokensDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/WordTokensDescriptor.java
@@ -1,6 +1,6 @@
 package edu.uci.ics.asterix.runtime.evaluators.functions;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.om.types.ATypeTag;
@@ -20,7 +20,6 @@
 public class WordTokensDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "word-tokens", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new WordTokensDescriptor();
@@ -29,7 +28,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.WORD_TOKENS;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/YearDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/YearDescriptor.java
index 9f7955a..107f3cd 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/YearDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/YearDescriptor.java
@@ -2,11 +2,11 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -27,7 +27,6 @@
 public class YearDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    public final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "year", 1);
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     private final static byte SER_STRING_TYPE_TAG = ATypeTag.STRING.serialize();
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
@@ -38,7 +37,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.YEAR;
     }
 
     /**
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 86a02af..c1ff13f 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
@@ -206,6 +206,8 @@
 
     public static final NonTaggedDataFormat INSTANCE = new NonTaggedDataFormat();
 
+    public static final String NON_TAGGED_DATA_FORMAT = "edu.uci.ics.asterix.runtime.formats.NonTaggedDataFormat";
+
     private static LogicalVariable METADATA_DUMMY_VAR = new LogicalVariable(-1);
 
     private static final HashMap<ATypeTag, IValueParserFactory> typeToValueParserFactMap = new HashMap<ATypeTag, IValueParserFactory>();
@@ -268,7 +270,7 @@
         temp.add(NonEmptyStreamAggregateDescriptor.FACTORY);
         temp.add(RangeDescriptor.FACTORY);
 
-// Xiaoyu Ma add for numeric unary functions
+        // Xiaoyu Ma add for numeric unary functions
         temp.add(NumericAbsDescriptor.FACTORY);
         temp.add(NumericCeilingDescriptor.FACTORY);
         temp.add(NumericFloorDescriptor.FACTORY);
@@ -277,21 +279,21 @@
         temp.add(NumericRoundHalfToEven2Descriptor.FACTORY);
         // String functions
         temp.add(StringEqualDescriptor.FACTORY);
-        temp.add(StringStartWithDescrtiptor.FACTORY);    
-        temp.add(StringEndWithDescrtiptor.FACTORY);       
-        temp.add(StringMatchesDescriptor.FACTORY);    
-        temp.add(StringLowerCaseDescriptor.FACTORY);   
+        temp.add(StringStartWithDescrtiptor.FACTORY);
+        temp.add(StringEndWithDescrtiptor.FACTORY);
+        temp.add(StringMatchesDescriptor.FACTORY);
+        temp.add(StringLowerCaseDescriptor.FACTORY);
         temp.add(StringMatchesWithFlagDescriptor.FACTORY);
-        temp.add(StringReplaceDescriptor.FACTORY);      
-        temp.add(StringReplaceWithFlagsDescriptor.FACTORY);    
-        temp.add(StringLengthDescriptor.FACTORY);        
-        temp.add(Substring2Descriptor.FACTORY);    
-        temp.add(SubstringBeforeDescriptor.FACTORY); 
-        temp.add(SubstringAfterDescriptor.FACTORY); 
-        temp.add(StringToCodePointDescriptor.FACTORY);         
-        temp.add(CodePointToStringDescriptor.FACTORY); 
-        temp.add(StringConcatDescriptor.FACTORY);         
-        temp.add(StringJoinDescriptor.FACTORY);      
+        temp.add(StringReplaceDescriptor.FACTORY);
+        temp.add(StringReplaceWithFlagsDescriptor.FACTORY);
+        temp.add(StringLengthDescriptor.FACTORY);
+        temp.add(Substring2Descriptor.FACTORY);
+        temp.add(SubstringBeforeDescriptor.FACTORY);
+        temp.add(SubstringAfterDescriptor.FACTORY);
+        temp.add(StringToCodePointDescriptor.FACTORY);
+        temp.add(CodePointToStringDescriptor.FACTORY);
+        temp.add(StringConcatDescriptor.FACTORY);
+        temp.add(StringJoinDescriptor.FACTORY);
 
         // aggregates
         temp.add(ListifyAggregateDescriptor.FACTORY);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/std/TidRunningAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/std/TidRunningAggregateDescriptor.java
index 6c9f4dc..a43b9bf 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/std/TidRunningAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/runningaggregates/std/TidRunningAggregateDescriptor.java
@@ -2,10 +2,10 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AInt32;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
+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.asterix.om.types.BuiltinType;
@@ -23,7 +23,6 @@
 public class TidRunningAggregateDescriptor extends AbstractRunningAggregateFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "tid", 0);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new TidRunningAggregateDescriptor();
@@ -75,7 +74,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.TID;
     }
 
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/RangeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/RangeDescriptor.java
index a81172d..dade5b19 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/RangeDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/RangeDescriptor.java
@@ -2,9 +2,9 @@
 
 import java.io.DataOutput;
 
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.AMutableInt32;
+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.asterix.om.types.BuiltinType;
@@ -26,7 +26,6 @@
 
     private static final long serialVersionUID = 1L;
 
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "range", 2);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new RangeDescriptor();
@@ -35,7 +34,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.RANGE;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/ScanCollectionDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/ScanCollectionDescriptor.java
index a66f775..5351c9b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/ScanCollectionDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/ScanCollectionDescriptor.java
@@ -19,7 +19,7 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
+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.asterix.runtime.evaluators.common.AsterixListAccessor;
@@ -37,8 +37,6 @@
 public class ScanCollectionDescriptor extends AbstractUnnestingFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "scan-collection", 1);
     public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
         public IFunctionDescriptor createFunctionDescriptor() {
             return new ScanCollectionDescriptor();
@@ -47,7 +45,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SCAN_COLLECTION;
     }
 
     @Override
@@ -71,7 +69,7 @@
 
             return new ICopyUnnestingFunction() {
 
-            	private final AsterixListAccessor listAccessor = new AsterixListAccessor();
+                private final AsterixListAccessor listAccessor = new AsterixListAccessor();
                 private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
                 private ICopyEvaluator argEval = listEvalFactory.createEvaluator(inputVal);
                 private int itemIndex;
@@ -84,7 +82,7 @@
                         listAccessor.reset(inputVal.getByteArray(), 0);
                         itemIndex = 0;
                     } catch (AsterixException e) {
-                    	throw new AlgebricksException(e);
+                        throw new AlgebricksException(e);
                     }
                 }
 
@@ -92,14 +90,14 @@
                 public boolean step() throws AlgebricksException {
                     try {
                         if (itemIndex < listAccessor.size()) {
-                        	listAccessor.writeItem(itemIndex, out);
-                        	++itemIndex;
+                            listAccessor.writeItem(itemIndex, out);
+                            ++itemIndex;
                             return true;
-                        }                        
+                        }
                     } catch (IOException e) {
                         throw new AlgebricksException(e);
                     } catch (AsterixException e) {
-                    	throw new AlgebricksException(e);
+                        throw new AlgebricksException(e);
                     }
                     return false;
                 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/SubsetCollectionDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/SubsetCollectionDescriptor.java
index 8ebfd15..67b0e9f 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/SubsetCollectionDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/unnestingfunctions/std/SubsetCollectionDescriptor.java
@@ -4,11 +4,11 @@
 import java.io.IOException;
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.common.functions.FunctionConstants;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AOrderedListSerializerDeserializer;
 import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AUnorderedListSerializerDeserializer;
 import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
 import edu.uci.ics.asterix.om.base.ANull;
+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.asterix.om.types.ATypeTag;
@@ -31,8 +31,6 @@
 public class SubsetCollectionDescriptor extends AbstractUnnestingFunctionDynamicDescriptor {
 
     private static final long serialVersionUID = 1L;
-    private final static FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
-            "subset-collection", 3);
 
     private final static byte SER_ORDEREDLIST_TYPE_TAG = ATypeTag.ORDEREDLIST.serialize();
     private final static byte SER_UNORDEREDLIST_TYPE_TAG = ATypeTag.UNORDEREDLIST.serialize();
@@ -142,7 +140,7 @@
 
     @Override
     public FunctionIdentifier getIdentifier() {
-        return FID;
+        return AsterixBuiltinFunctions.SUBSET_COLLECTION;
     }
 
 }
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 7e4704b..3190b9d 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
@@ -35,6 +35,7 @@
 import edu.uci.ics.asterix.common.annotations.RecordDataGenAnnotation;
 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.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
@@ -46,7 +47,6 @@
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.tools.translator.ADGenDmlTranslator;
 import edu.uci.ics.asterix.transaction.management.exception.ACIDException;
-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;
 
@@ -922,7 +922,7 @@
         this.outputDir = outputDir;
     }
 
-    public void init() throws IOException, ParseException, AlgebricksException, ACIDException, MetadataException {
+    public void init() throws IOException, ParseException, AsterixException, ACIDException, MetadataException {
         FileReader aql = new FileReader(schemaFile);
         AQLParser parser = new AQLParser(aql);
         Query q = (Query) parser.Statement();
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/translator/ADGenDmlTranslator.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/translator/ADGenDmlTranslator.java
index 5ee83cf..54ebd56 100644
--- a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/translator/ADGenDmlTranslator.java
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/translator/ADGenDmlTranslator.java
@@ -3,11 +3,11 @@
 import java.util.List;
 
 import edu.uci.ics.asterix.aql.base.Statement;
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
 import edu.uci.ics.asterix.metadata.MetadataException;
 import edu.uci.ics.asterix.metadata.MetadataTransactionContext;
 import edu.uci.ics.asterix.metadata.declared.AqlCompiledMetadataDeclarations;
 import edu.uci.ics.asterix.translator.AbstractAqlTranslator;
-import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
 
 public class ADGenDmlTranslator extends AbstractAqlTranslator {
 
@@ -20,7 +20,7 @@
         this.aqlStatements = aqlStatements;
     }
 
-    public void translate() throws AlgebricksException, MetadataException {
+    public void translate() throws AsterixException, MetadataException {
         compiledDeclarations = compileMetadata(mdTxnCtx, aqlStatements, false);
     }