diff --git a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexScanOperatorTest.java b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexScanOperatorTest.java
index f320a48..84956b7 100644
--- a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexScanOperatorTest.java
+++ b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexScanOperatorTest.java
@@ -29,7 +29,6 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTrait;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.TypeTrait;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
@@ -108,12 +107,12 @@
 	@Before
 	public void setup() throws Exception {
 		// field, type and key declarations for primary index
-		primaryTypeTraits[0] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[1] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[2] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[3] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[4] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[5] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
+		primaryTypeTraits[0] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[1] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[2] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[3] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[4] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[5] = ITypeTrait.VARLEN_TYPE_TRAIT;
 		primaryComparatorFactories[0] = UTF8StringBinaryComparatorFactory.INSTANCE;
 
 		loadPrimaryIndexTest();
diff --git a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexSearchOperatorTest.java b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexSearchOperatorTest.java
index ae5c04e..161656e 100644
--- a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexSearchOperatorTest.java
+++ b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexSearchOperatorTest.java
@@ -29,7 +29,6 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTrait;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.TypeTrait;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
@@ -109,12 +108,12 @@
 	@Before
 	public void setup() throws Exception {
 		// field, type and key declarations for primary index
-		primaryTypeTraits[0] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[1] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[2] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[3] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[4] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[5] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
+		primaryTypeTraits[0] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[1] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[2] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[3] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[4] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[5] = ITypeTrait.VARLEN_TYPE_TRAIT;
 		primaryComparatorFactories[0] = UTF8StringBinaryComparatorFactory.INSTANCE;
 
 		loadPrimaryIndexTest();
diff --git a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexStatsOperatorTest.java b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexStatsOperatorTest.java
index e685894..f4c25fe 100644
--- a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexStatsOperatorTest.java
+++ b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreePrimaryIndexStatsOperatorTest.java
@@ -28,7 +28,6 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTrait;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.TypeTrait;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.common.data.comparators.UTF8StringBinaryComparatorFactory;
@@ -104,12 +103,12 @@
 	@Before
 	public void setup() throws Exception {
 		// field, type and key declarations for primary index
-		primaryTypeTraits[0] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[1] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[2] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[3] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[4] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[5] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
+		primaryTypeTraits[0] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[1] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[2] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[3] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[4] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[5] = ITypeTrait.VARLEN_TYPE_TRAIT;
 		primaryComparatorFactories[0] = UTF8StringBinaryComparatorFactory.INSTANCE;
 
 		loadPrimaryIndexTest();
diff --git a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreeSecondaryIndexInsertOperatorTest.java b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreeSecondaryIndexInsertOperatorTest.java
index 9d21dd5..779b13c 100644
--- a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreeSecondaryIndexInsertOperatorTest.java
+++ b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreeSecondaryIndexInsertOperatorTest.java
@@ -29,7 +29,6 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTrait;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.TypeTrait;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
@@ -138,17 +137,17 @@
 	@Before
 	public void setup() throws Exception {
 		// field, type and key declarations for primary index
-		primaryTypeTraits[0] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[1] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[2] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[3] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[4] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[5] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
+		primaryTypeTraits[0] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[1] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[2] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[3] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[4] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[5] = ITypeTrait.VARLEN_TYPE_TRAIT;
 		primaryComparatorFactories[0] = UTF8StringBinaryComparatorFactory.INSTANCE;
 
 		// field, type and key declarations for secondary indexes
-		secondaryTypeTraits[0] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		secondaryTypeTraits[1] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
+		secondaryTypeTraits[0] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		secondaryTypeTraits[1] = ITypeTrait.VARLEN_TYPE_TRAIT;
 		secondaryComparatorFactories[0] = UTF8StringBinaryComparatorFactory.INSTANCE;
 		secondaryComparatorFactories[1] = UTF8StringBinaryComparatorFactory.INSTANCE;
 
diff --git a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreeSecondaryIndexSearchOperatorTest.java b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreeSecondaryIndexSearchOperatorTest.java
index 89595d6..d5481b4 100644
--- a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreeSecondaryIndexSearchOperatorTest.java
+++ b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/btree/BTreeSecondaryIndexSearchOperatorTest.java
@@ -29,7 +29,6 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTrait;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.TypeTrait;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
@@ -135,17 +134,17 @@
 	@Before
 	public void setup() throws Exception {
 		// field, type and key declarations for primary index
-		primaryTypeTraits[0] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[1] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[2] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[3] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[4] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryTypeTraits[5] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
+		primaryTypeTraits[0] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[1] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[2] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[3] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[4] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryTypeTraits[5] = ITypeTrait.VARLEN_TYPE_TRAIT;
 		primaryComparatorFactories[0] = UTF8StringBinaryComparatorFactory.INSTANCE;
 
 		// field, type and key declarations for secondary indexes
-		secondaryTypeTraits[0] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		secondaryTypeTraits[1] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
+		secondaryTypeTraits[0] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		secondaryTypeTraits[1] = ITypeTrait.VARLEN_TYPE_TRAIT;
 		secondaryComparatorFactories[0] = UTF8StringBinaryComparatorFactory.INSTANCE;
 		secondaryComparatorFactories[1] = UTF8StringBinaryComparatorFactory.INSTANCE;
 
diff --git a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreePrimaryIndexSearchOperatorTest.java b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreePrimaryIndexSearchOperatorTest.java
index ec2d5dd..11a1833 100644
--- a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreePrimaryIndexSearchOperatorTest.java
+++ b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreePrimaryIndexSearchOperatorTest.java
@@ -29,7 +29,6 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTrait;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.TypeTrait;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
@@ -111,11 +110,11 @@
 	@Before
 	public void setup() throws Exception {
 		// field, type and key declarations for primary R-tree index
-		primaryTypeTraits[0] = new TypeTrait(8);
-		primaryTypeTraits[1] = new TypeTrait(8);
-		primaryTypeTraits[2] = new TypeTrait(8);
-		primaryTypeTraits[3] = new TypeTrait(8);
-		primaryTypeTraits[4] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
+		primaryTypeTraits[0] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryTypeTraits[1] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryTypeTraits[2] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryTypeTraits[3] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryTypeTraits[4] = ITypeTrait.VARLEN_TYPE_TRAIT;
 		primaryComparatorFactories[0] = DoubleBinaryComparatorFactory.INSTANCE;
 		primaryComparatorFactories[1] = primaryComparatorFactories[0];
 		primaryComparatorFactories[2] = primaryComparatorFactories[0];
diff --git a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreePrimaryIndexStatsOperatorTest.java b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreePrimaryIndexStatsOperatorTest.java
index 1b1d760..183c869 100644
--- a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreePrimaryIndexStatsOperatorTest.java
+++ b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreePrimaryIndexStatsOperatorTest.java
@@ -28,7 +28,6 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTrait;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.TypeTrait;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.common.data.comparators.DoubleBinaryComparatorFactory;
@@ -106,11 +105,11 @@
 	@Before
 	public void setup() throws Exception {
 		// field, type and key declarations for primary R-tree index
-		primaryTypeTraits[0] = new TypeTrait(8);
-		primaryTypeTraits[1] = new TypeTrait(8);
-		primaryTypeTraits[2] = new TypeTrait(8);
-		primaryTypeTraits[3] = new TypeTrait(8);
-		primaryTypeTraits[4] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
+		primaryTypeTraits[0] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryTypeTraits[1] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryTypeTraits[2] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryTypeTraits[3] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryTypeTraits[4] = ITypeTrait.VARLEN_TYPE_TRAIT;
 		primaryComparatorFactories[0] = DoubleBinaryComparatorFactory.INSTANCE;
 		primaryComparatorFactories[1] = primaryComparatorFactories[0];
 		primaryComparatorFactories[2] = primaryComparatorFactories[0];
diff --git a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreeSecondaryIndexSearchOperatorTest.java b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreeSecondaryIndexSearchOperatorTest.java
index 3c00184..c484c2d 100644
--- a/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreeSecondaryIndexSearchOperatorTest.java
+++ b/hyracks-examples/hyracks-integration-tests/src/test/java/edu/uci/ics/hyracks/tests/rtree/RTreeSecondaryIndexSearchOperatorTest.java
@@ -29,7 +29,6 @@
 import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
 import edu.uci.ics.hyracks.api.dataflow.value.ITypeTrait;
 import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
-import edu.uci.ics.hyracks.api.dataflow.value.TypeTrait;
 import edu.uci.ics.hyracks.api.io.FileReference;
 import edu.uci.ics.hyracks.api.job.JobSpecification;
 import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
@@ -155,24 +154,24 @@
 	@Before
 	public void setup() throws Exception {	
 		// field, type and key declarations for primary B-tree index
-		primaryBTreeTypeTraits[0] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryBTreeTypeTraits[1] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryBTreeTypeTraits[2] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryBTreeTypeTraits[3] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryBTreeTypeTraits[4] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryBTreeTypeTraits[5] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
-		primaryBTreeTypeTraits[6] = new TypeTrait(8);
-		primaryBTreeTypeTraits[7] = new TypeTrait(8);
-		primaryBTreeTypeTraits[8] = new TypeTrait(8);
-		primaryBTreeTypeTraits[9] = new TypeTrait(8);
+		primaryBTreeTypeTraits[0] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryBTreeTypeTraits[1] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryBTreeTypeTraits[2] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryBTreeTypeTraits[3] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryBTreeTypeTraits[4] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryBTreeTypeTraits[5] = ITypeTrait.VARLEN_TYPE_TRAIT;
+		primaryBTreeTypeTraits[6] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryBTreeTypeTraits[7] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryBTreeTypeTraits[8] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		primaryBTreeTypeTraits[9] = ITypeTrait.DOUBLE_TYPE_TRAIT;
 		primaryBTreeComparatorFactories[0] = UTF8StringBinaryComparatorFactory.INSTANCE;
 
 		// field, type and key declarations for secondary indexes
-		secondaryTypeTraits[0] = new TypeTrait(8);
-		secondaryTypeTraits[1] = new TypeTrait(8);
-		secondaryTypeTraits[2] = new TypeTrait(8);
-		secondaryTypeTraits[3] = new TypeTrait(8);
-		secondaryTypeTraits[4] = new TypeTrait(ITypeTrait.VARIABLE_LENGTH);
+		secondaryTypeTraits[0] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		secondaryTypeTraits[1] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		secondaryTypeTraits[2] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		secondaryTypeTraits[3] = ITypeTrait.DOUBLE_TYPE_TRAIT;
+		secondaryTypeTraits[4] = ITypeTrait.VARLEN_TYPE_TRAIT;
 		secondaryComparatorFactories[0] = DoubleBinaryComparatorFactory.INSTANCE;
 		secondaryComparatorFactories[1] = secondaryComparatorFactories[0];
 		secondaryComparatorFactories[2] = secondaryComparatorFactories[0];