diff --git a/hyracks-examples/tpch-example/tpchhelper/.classpath b/hyracks-examples/tpch-example/tpchhelper/.classpath
new file mode 100644
index 0000000..1f3c1ff
--- /dev/null
+++ b/hyracks-examples/tpch-example/tpchhelper/.classpath
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" output="target/classes" path="src/main/java"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
+	<classpathentry kind="con" path="org.maven.ide.eclipse.MAVEN2_CLASSPATH_CONTAINER"/>
+	<classpathentry kind="output" path="target/classes"/>
+</classpath>
diff --git a/hyracks-examples/tpch-example/tpchhelper/.project b/hyracks-examples/tpch-example/tpchhelper/.project
new file mode 100644
index 0000000..41b2574
--- /dev/null
+++ b/hyracks-examples/tpch-example/tpchhelper/.project
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>tpchhelper</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.maven.ide.eclipse.maven2Builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.maven.ide.eclipse.maven2Nature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/hyracks-examples/tpch-example/tpchhelper/.settings/org.eclipse.jdt.core.prefs b/hyracks-examples/tpch-example/tpchhelper/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 0000000..4898439
--- /dev/null
+++ b/hyracks-examples/tpch-example/tpchhelper/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,6 @@
+#Wed Aug 11 19:04:13 PDT 2010
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
+org.eclipse.jdt.core.compiler.compliance=1.6
+org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
+org.eclipse.jdt.core.compiler.source=1.6
diff --git a/hyracks-examples/tpch-example/tpchhelper/.settings/org.maven.ide.eclipse.prefs b/hyracks-examples/tpch-example/tpchhelper/.settings/org.maven.ide.eclipse.prefs
new file mode 100644
index 0000000..032b327
--- /dev/null
+++ b/hyracks-examples/tpch-example/tpchhelper/.settings/org.maven.ide.eclipse.prefs
@@ -0,0 +1,9 @@
+#Wed Aug 11 19:04:13 PDT 2010
+activeProfiles=
+eclipse.preferences.version=1
+fullBuildGoals=process-test-resources
+includeModules=false
+resolveWorkspaceProjects=true
+resourceFilterGoals=process-resources resources\:testResources
+skipCompilerPlugin=true
+version=1
diff --git a/hyracks-examples/tpch-example/tpchhelper/pom.xml b/hyracks-examples/tpch-example/tpchhelper/pom.xml
new file mode 100644
index 0000000..14b9ec7
--- /dev/null
+++ b/hyracks-examples/tpch-example/tpchhelper/pom.xml
@@ -0,0 +1,33 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>edu.uci.ics.hyracks.examples.tpch</groupId>
+  <artifactId>tpchhelper</artifactId>
+  <version>0.0.1</version>
+  <dependencies>
+  	<dependency>
+  		<groupId>edu.uci.ics.hyracks</groupId>
+  		<artifactId>hyracks-dataflow-std</artifactId>
+  		<version>0.1.0</version>
+  		<scope>compile</scope>
+  	</dependency>
+  	<dependency>
+  		<groupId>edu.uci.ics.hyracks</groupId>
+  		<artifactId>hyracks-api</artifactId>
+  		<version>0.1.0</version>
+  		<scope>compile</scope>
+  	</dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>2.0.2</version>
+        <configuration>
+          <source>1.6</source>
+          <target>1.6</target>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>
diff --git a/hyracks-examples/tpch-example/tpchhelper/src/main/java/edu/uci/ics/hyracks/examples/tpch/helper/CountAccumulatingAggregatorFactory.java b/hyracks-examples/tpch-example/tpchhelper/src/main/java/edu/uci/ics/hyracks/examples/tpch/helper/CountAccumulatingAggregatorFactory.java
new file mode 100644
index 0000000..cbc8a57
--- /dev/null
+++ b/hyracks-examples/tpch-example/tpchhelper/src/main/java/edu/uci/ics/hyracks/examples/tpch/helper/CountAccumulatingAggregatorFactory.java
@@ -0,0 +1,41 @@
+package edu.uci.ics.hyracks.examples.tpch.helper;
+
+import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.ArrayTupleBuilder;
+import edu.uci.ics.hyracks.dataflow.common.comm.io.FrameTupleAppender;
+import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
+import edu.uci.ics.hyracks.dataflow.std.group.IAccumulatingAggregator;
+import edu.uci.ics.hyracks.dataflow.std.group.IAccumulatingAggregatorFactory;
+
+public class CountAccumulatingAggregatorFactory implements IAccumulatingAggregatorFactory {
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public IAccumulatingAggregator createAggregator(RecordDescriptor inRecordDesc, RecordDescriptor outRecordDescriptor) {
+        final ArrayTupleBuilder tb = new ArrayTupleBuilder(2);
+        return new IAccumulatingAggregator() {
+            private int count;
+
+            @Override
+            public boolean output(FrameTupleAppender appender, IFrameTupleAccessor accessor, int tIndex)
+                    throws HyracksDataException {
+                tb.reset();
+                tb.addField(accessor, tIndex, 0);
+                tb.addField(IntegerSerializerDeserializer.INSTANCE, count);
+                return appender.append(tb.getFieldEndOffsets(), tb.getByteArray(), 0, tb.getSize());
+            }
+
+            @Override
+            public void init(IFrameTupleAccessor accessor, int tIndex) throws HyracksDataException {
+                count = 0;
+            }
+
+            @Override
+            public void accumulate(IFrameTupleAccessor accessor, int tIndex) throws HyracksDataException {
+                ++count;
+            }
+        };
+    }
+}
\ No newline at end of file