diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/pom.xml b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/pom.xml
deleted file mode 100644
index 4827455..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/pom.xml
+++ /dev/null
@@ -1,169 +0,0 @@
-<!--
- ! Licensed to the Apache Software Foundation (ASF) under one
- ! or more contributor license agreements.  See the NOTICE file
- ! distributed with this work for additional information
- ! regarding copyright ownership.  The ASF licenses this file
- ! to you under the Apache License, Version 2.0 (the
- ! "License"); you may not use this file except in compliance
- ! with the License.  You may obtain a copy of the License at
- !
- !   http://www.apache.org/licenses/LICENSE-2.0
- !
- ! Unless required by applicable law or agreed to in writing,
- ! software distributed under the License is distributed on an
- ! "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- ! KIND, either express or implied.  See the License for the
- ! specific language governing permissions and limitations
- ! under the License.
- !-->
-
-<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>
-  <artifactId>piglet-example</artifactId>
-  <name>piglet-example</name>
-  <parent>
-    <groupId>org.apache.hyracks</groupId>
-    <artifactId>algebricks-examples</artifactId>
-    <version>0.3.3-SNAPSHOT</version>
-  </parent>
-
-  <properties>
-    <root.dir>${basedir}/../../..</root.dir>
-  </properties>
-
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.codehaus.mojo</groupId>
-        <artifactId>javacc-maven-plugin</artifactId>
-        <version>2.6</version>
-        <executions>
-          <execution>
-            <id>javacc</id>
-            <goals>
-              <goal>javacc</goal>
-            </goals>
-            <configuration>
-              <isStatic>false</isStatic>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
-      <plugin>
-        <groupId>org.codehaus.mojo</groupId>
-        <artifactId>build-helper-maven-plugin</artifactId>
-        <executions>
-          <execution>
-            <id>add-source</id>
-            <phase>generate-sources</phase>
-            <goals>
-              <goal>add-source</goal>
-            </goals>
-            <configuration>
-              <sources>
-                <source>${project.build.directory}/generated-sources/javacc/</source>
-              </sources>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
-    </plugins>
-    <pluginManagement>
-      <plugins>
-        <!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
-        <plugin>
-          <groupId>org.eclipse.m2e</groupId>
-          <artifactId>lifecycle-mapping</artifactId>
-          <version>1.0.0</version>
-          <configuration>
-            <lifecycleMappingMetadata>
-              <pluginExecutions>
-                <pluginExecution>
-                  <pluginExecutionFilter>
-                    <groupId>
-                      org.codehaus.mojo
-                    </groupId>
-                    <artifactId>
-                      javacc-maven-plugin
-                    </artifactId>
-                    <versionRange>
-                      [2.6,)
-                    </versionRange>
-                    <goals>
-                      <goal>javacc</goal>
-                    </goals>
-                  </pluginExecutionFilter>
-                  <action>
-                    <ignore />
-                  </action>
-                </pluginExecution>
-              </pluginExecutions>
-            </lifecycleMappingMetadata>
-          </configuration>
-        </plugin>
-      </plugins>
-    </pluginManagement>
-  </build>
-  <dependencies>
-    <dependency>
-      <!-- Dependency management inherited from top-level hyracks -->
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>algebricks-compiler</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>hyracks-util</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>algebricks-common</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>hyracks-dataflow-common</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>algebricks-rewriter</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>algebricks-runtime</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>algebricks-data</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>hyracks-api</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>hyracks-dataflow-std</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>hyracks-data-std</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.commons</groupId>
-      <artifactId>commons-lang3</artifactId>
-    </dependency>
-  </dependencies>
-</project>
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/ASTNode.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/ASTNode.java
deleted file mode 100644
index c303e99..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/ASTNode.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-public abstract class ASTNode {
-    public enum Tag {
-        ASSIGNMENT,
-        DUMP,
-        LOAD,
-        FILTER,
-
-        SCALAR_FUNCTION,
-        LITERAL,
-        FIELD_ACCESS,
-    }
-
-    public abstract Tag getTag();
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/AssignmentNode.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/AssignmentNode.java
deleted file mode 100644
index 8a99cb8..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/AssignmentNode.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-public class AssignmentNode extends ASTNode {
-    private String alias;
-
-    private RelationNode relation;
-
-    public AssignmentNode(String alias, RelationNode relation) {
-        this.alias = alias;
-        this.relation = relation;
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.ASSIGNMENT;
-    }
-
-    public String getAlias() {
-        return alias;
-    }
-
-    public RelationNode getRelation() {
-        return relation;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/DumpNode.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/DumpNode.java
deleted file mode 100644
index 66a229c..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/DumpNode.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-public class DumpNode extends RelationNode {
-    private final String file;
-    private final String alias;
-
-    public DumpNode(String file, String alias) {
-        this.file = file;
-        this.alias = alias;
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.DUMP;
-    }
-
-    public String getFile() {
-        return file;
-    }
-
-    public String getAlias() {
-        return alias;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/ExpressionNode.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/ExpressionNode.java
deleted file mode 100644
index 4470cd9..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/ExpressionNode.java
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-public abstract class ExpressionNode extends ASTNode {
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/FieldAccessExpressionNode.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/FieldAccessExpressionNode.java
deleted file mode 100644
index cfd9bdd..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/FieldAccessExpressionNode.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-public class FieldAccessExpressionNode extends ExpressionNode {
-    private String relationName;
-
-    private String fieldName;
-
-    public FieldAccessExpressionNode(String relationName, String fieldName) {
-        this.relationName = relationName;
-        this.fieldName = fieldName;
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.FIELD_ACCESS;
-    }
-
-    public String getRelationName() {
-        return relationName;
-    }
-
-    public String getFieldName() {
-        return fieldName;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/FilterNode.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/FilterNode.java
deleted file mode 100644
index b77a6a9..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/FilterNode.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-public class FilterNode extends RelationNode {
-    private String alias;
-
-    private ExpressionNode expression;
-
-    public FilterNode(String alias, ExpressionNode expression) {
-        this.alias = alias;
-        this.expression = expression;
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.FILTER;
-    }
-
-    public String getAlias() {
-        return alias;
-    }
-
-    public ExpressionNode getExpression() {
-        return expression;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/FunctionTag.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/FunctionTag.java
deleted file mode 100644
index b63af9c..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/FunctionTag.java
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-public enum FunctionTag {
-    BOOLEAN_AND,
-    BOOLEAN_OR,
-    BOOLEAN_NOT,
-
-    EQ,
-    NEQ,
-    LT,
-    LTE,
-    GT,
-    GTE,
-
-    ADD,
-    SUBTRACT,
-    MULTIPLY,
-    DIVIDE,
-    MOD,
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/LiteralExpressionNode.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/LiteralExpressionNode.java
deleted file mode 100644
index d039145..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/LiteralExpressionNode.java
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-import org.apache.hyracks.algebricks.examples.piglet.types.Type;
-
-public class LiteralExpressionNode extends ExpressionNode {
-    private String image;
-
-    private Type type;
-
-    public LiteralExpressionNode(String image, Type type) {
-        this.image = image;
-        this.type = type;
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.LITERAL;
-    }
-
-    public String getImage() {
-        return image;
-    }
-
-    public Type getType() {
-        return type;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/LoadNode.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/LoadNode.java
deleted file mode 100644
index 6be1d9f..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/LoadNode.java
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-import org.apache.hyracks.algebricks.examples.piglet.types.Schema;
-
-public class LoadNode extends RelationNode {
-    private String dataFile;
-
-    private Schema schema;
-
-    public LoadNode(String dataFile, Schema schema) {
-        this.dataFile = dataFile;
-        this.schema = schema;
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.LOAD;
-    }
-
-    public String getDataFile() {
-        return dataFile;
-    }
-
-    public Schema getSchema() {
-        return schema;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/RelationNode.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/RelationNode.java
deleted file mode 100644
index f36da51..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/RelationNode.java
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-public abstract class RelationNode extends ASTNode {
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/ScalarFunctionExpressionNode.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/ScalarFunctionExpressionNode.java
deleted file mode 100644
index e1dea89..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/ast/ScalarFunctionExpressionNode.java
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.ast;
-
-import java.util.List;
-
-public class ScalarFunctionExpressionNode extends ExpressionNode {
-    private FunctionTag fTag;
-
-    private String fName;
-
-    private List<ASTNode> arguments;
-
-    public ScalarFunctionExpressionNode(FunctionTag fTag, String fName, List<ASTNode> arguments) {
-        this.fTag = fTag;
-        this.fName = fName;
-        this.arguments = arguments;
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.SCALAR_FUNCTION;
-    }
-
-    public FunctionTag getFunctionTag() {
-        return fTag;
-    }
-
-    public String getFunctionName() {
-        return fName;
-    }
-
-    public List<ASTNode> getArguments() {
-        return arguments;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/compiler/ConstantValue.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/compiler/ConstantValue.java
deleted file mode 100644
index 90d5b83..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/compiler/ConstantValue.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.compiler;
-
-import org.apache.hyracks.algebricks.core.algebra.expressions.IAlgebricksConstantValue;
-import org.apache.hyracks.algebricks.examples.piglet.types.Type;
-
-public final class ConstantValue implements IAlgebricksConstantValue {
-    private final Type type;
-
-    private final String image;
-
-    public ConstantValue(Type type, String image) {
-        this.type = type;
-        this.image = image;
-    }
-
-    public Type getType() {
-        return type;
-    }
-
-    public String getImage() {
-        return image;
-    }
-
-    @Override
-    public boolean isFalse() {
-        return false;
-    }
-
-    @Override
-    public boolean isMissing() {
-        return false;
-    }
-
-    @Override
-    public boolean isNull() {
-        return false;
-    }
-
-    @Override
-    public boolean isTrue() {
-        return false;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/compiler/PigletCompiler.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/compiler/PigletCompiler.java
deleted file mode 100644
index c8b6e59..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/compiler/PigletCompiler.java
+++ /dev/null
@@ -1,383 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.compiler;
-
-import java.io.Reader;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import org.apache.commons.lang3.mutable.Mutable;
-import org.apache.commons.lang3.mutable.MutableObject;
-import org.apache.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
-import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
-import org.apache.hyracks.algebricks.common.utils.Pair;
-import org.apache.hyracks.algebricks.compiler.api.HeuristicCompilerFactoryBuilder;
-import org.apache.hyracks.algebricks.compiler.api.ICompiler;
-import org.apache.hyracks.algebricks.compiler.api.ICompilerFactory;
-import org.apache.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialFixpointRuleController;
-import org.apache.hyracks.algebricks.compiler.rewriter.rulecontrollers.SequentialOnceRuleController;
-import org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import org.apache.hyracks.algebricks.core.algebra.base.ILogicalOperator;
-import org.apache.hyracks.algebricks.core.algebra.base.ILogicalPlan;
-import org.apache.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import org.apache.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
-import org.apache.hyracks.algebricks.core.algebra.expressions.IExpressionTypeComputer;
-import org.apache.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
-import org.apache.hyracks.algebricks.core.algebra.expressions.ExpressionRuntimeProvider;
-import org.apache.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import org.apache.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
-import org.apache.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
-import org.apache.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
-import org.apache.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import org.apache.hyracks.algebricks.core.algebra.operators.logical.AssignOperator;
-import org.apache.hyracks.algebricks.core.algebra.operators.logical.DataSourceScanOperator;
-import org.apache.hyracks.algebricks.core.algebra.operators.logical.EmptyTupleSourceOperator;
-import org.apache.hyracks.algebricks.core.algebra.operators.logical.SelectOperator;
-import org.apache.hyracks.algebricks.core.algebra.operators.logical.WriteOperator;
-import org.apache.hyracks.algebricks.core.algebra.plan.ALogicalPlanImpl;
-import org.apache.hyracks.algebricks.core.algebra.prettyprint.AlgebricksAppendable;
-import org.apache.hyracks.algebricks.core.algebra.prettyprint.LogicalOperatorPrettyPrintVisitor;
-import org.apache.hyracks.algebricks.core.algebra.prettyprint.PlanPrettyPrinter;
-import org.apache.hyracks.algebricks.core.rewriter.base.AbstractRuleController;
-import org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import org.apache.hyracks.algebricks.data.ISerializerDeserializerProvider;
-import org.apache.hyracks.algebricks.data.ITypeTraitProvider;
-import org.apache.hyracks.algebricks.examples.piglet.ast.ASTNode;
-import org.apache.hyracks.algebricks.examples.piglet.ast.AssignmentNode;
-import org.apache.hyracks.algebricks.examples.piglet.ast.DumpNode;
-import org.apache.hyracks.algebricks.examples.piglet.ast.ExpressionNode;
-import org.apache.hyracks.algebricks.examples.piglet.ast.FieldAccessExpressionNode;
-import org.apache.hyracks.algebricks.examples.piglet.ast.FilterNode;
-import org.apache.hyracks.algebricks.examples.piglet.ast.FunctionTag;
-import org.apache.hyracks.algebricks.examples.piglet.ast.LiteralExpressionNode;
-import org.apache.hyracks.algebricks.examples.piglet.ast.LoadNode;
-import org.apache.hyracks.algebricks.examples.piglet.ast.RelationNode;
-import org.apache.hyracks.algebricks.examples.piglet.ast.ScalarFunctionExpressionNode;
-import org.apache.hyracks.algebricks.examples.piglet.exceptions.PigletException;
-import org.apache.hyracks.algebricks.examples.piglet.metadata.PigletFileDataSink;
-import org.apache.hyracks.algebricks.examples.piglet.metadata.PigletFileDataSource;
-import org.apache.hyracks.algebricks.examples.piglet.metadata.PigletMetadataProvider;
-import org.apache.hyracks.algebricks.examples.piglet.parser.ParseException;
-import org.apache.hyracks.algebricks.examples.piglet.parser.PigletParser;
-import org.apache.hyracks.algebricks.examples.piglet.rewriter.PigletRewriteRuleset;
-import org.apache.hyracks.algebricks.examples.piglet.runtime.PigletExpressionJobGen;
-import org.apache.hyracks.algebricks.examples.piglet.types.Schema;
-import org.apache.hyracks.algebricks.examples.piglet.types.Type;
-import org.apache.hyracks.api.dataflow.value.ISerializerDeserializer;
-import org.apache.hyracks.api.dataflow.value.ITypeTraits;
-import org.apache.hyracks.api.job.JobSpecification;
-
-public class PigletCompiler {
-    private static final Logger LOGGER = Logger.getLogger(PigletCompiler.class.getName());
-
-    private static List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> buildDefaultLogicalRewrites() {
-        List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> defaultLogicalRewrites = new ArrayList<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>>();
-        SequentialFixpointRuleController seqCtrlNoDfs = new SequentialFixpointRuleController(false);
-        SequentialFixpointRuleController seqCtrlFullDfs = new SequentialFixpointRuleController(true);
-        SequentialOnceRuleController seqOnceCtrl = new SequentialOnceRuleController(true);
-        defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrl,
-                PigletRewriteRuleset.buildTypeInferenceRuleCollection()));
-        defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlFullDfs,
-                PigletRewriteRuleset.buildNormalizationRuleCollection()));
-        defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
-                PigletRewriteRuleset.buildCondPushDownRuleCollection()));
-        defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
-                PigletRewriteRuleset.buildJoinInferenceRuleCollection()));
-        defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
-                PigletRewriteRuleset.buildOpPushDownRuleCollection()));
-        defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrl,
-                PigletRewriteRuleset.buildDataExchangeRuleCollection()));
-        defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlNoDfs,
-                PigletRewriteRuleset.buildConsolidationRuleCollection()));
-        return defaultLogicalRewrites;
-    }
-
-    private static List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> buildDefaultPhysicalRewrites() {
-        List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> defaultPhysicalRewrites = new ArrayList<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>>();
-        SequentialOnceRuleController seqOnceCtrlAllLevels = new SequentialOnceRuleController(true);
-        SequentialOnceRuleController seqOnceCtrlTopLevel = new SequentialOnceRuleController(false);
-        defaultPhysicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrlAllLevels,
-                PigletRewriteRuleset.buildPhysicalRewritesAllLevelsRuleCollection()));
-        defaultPhysicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrlTopLevel,
-                PigletRewriteRuleset.buildPhysicalRewritesTopLevelRuleCollection()));
-        defaultPhysicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqOnceCtrlAllLevels,
-                PigletRewriteRuleset.prepareForJobGenRuleCollection()));
-        return defaultPhysicalRewrites;
-    }
-
-    private final ICompilerFactory cFactory;
-
-    private final PigletMetadataProvider metadataProvider;
-
-    private int varCounter;
-
-    private ILogicalOperator previousOp;
-
-    public PigletCompiler() {
-        HeuristicCompilerFactoryBuilder builder = new HeuristicCompilerFactoryBuilder();
-        builder.setLogicalRewrites(buildDefaultLogicalRewrites());
-        builder.setPhysicalRewrites(buildDefaultPhysicalRewrites());
-        builder.setSerializerDeserializerProvider(new ISerializerDeserializerProvider() {
-            @SuppressWarnings("unchecked")
-            @Override
-            public ISerializerDeserializer getSerializerDeserializer(Object type) throws AlgebricksException {
-                return null;
-            }
-        });
-        builder.setTypeTraitProvider(new ITypeTraitProvider() {
-            @Override
-            public ITypeTraits getTypeTrait(Object type) {
-                return null;
-            }
-        });
-        builder.setPrinterProvider(PigletPrinterFactoryProvider.INSTANCE);
-        builder.setExpressionRuntimeProvider(
-                new ExpressionRuntimeProvider(new PigletExpressionJobGen()));
-        builder.setExpressionTypeComputer(new IExpressionTypeComputer() {
-            @Override
-            public Object getType(ILogicalExpression expr, IMetadataProvider<?, ?> metadataProvider,
-                    IVariableTypeEnvironment env) throws AlgebricksException {
-                return null;
-            }
-        });
-        builder.setClusterLocations(new AlgebricksAbsolutePartitionConstraint(new String[] { "nc1", "nc2" }));
-        cFactory = builder.create();
-        metadataProvider = new PigletMetadataProvider();
-    }
-
-    public List<ASTNode> parse(Reader in) throws ParseException {
-        PigletParser parser = new PigletParser(in);
-        List<ASTNode> statements = parser.Statements();
-        return statements;
-    }
-
-    public JobSpecification compile(List<ASTNode> ast) throws AlgebricksException, PigletException {
-        ILogicalPlan plan = translate(ast);
-        if (LOGGER.isLoggable(Level.INFO)) {
-            LOGGER.info("Translated Plan:");
-            LOGGER.info(getPrettyPrintedPlan(plan));
-        }
-        ICompiler compiler = cFactory.createCompiler(plan, metadataProvider, varCounter);
-        compiler.optimize();
-        if (LOGGER.isLoggable(Level.INFO)) {
-            LOGGER.info("Optimized Plan:");
-            LOGGER.info(getPrettyPrintedPlan(plan));
-        }
-        return compiler.createJob(null, null);
-    }
-
-    private ILogicalPlan translate(List<ASTNode> ast) throws PigletException {
-        Map<String, Relation> symMap = new HashMap<String, Relation>();
-        List<Mutable<ILogicalOperator>> roots = new ArrayList<Mutable<ILogicalOperator>>();
-        previousOp = null;
-        for (ASTNode an : ast) {
-            switch (an.getTag()) {
-                case DUMP: {
-                    DumpNode dn = (DumpNode) an;
-                    Relation input = symMap.get(dn.getAlias());
-                    List<Mutable<ILogicalExpression>> expressions = new ArrayList<Mutable<ILogicalExpression>>();
-                    for (LogicalVariable v : input.schema.values()) {
-                        expressions.add(new MutableObject<ILogicalExpression>(new VariableReferenceExpression(v)));
-                    }
-                    PigletFileDataSink dataSink = new PigletFileDataSink(dn.getFile());
-                    ILogicalOperator op = new WriteOperator(expressions, dataSink);
-                    op.getInputs().add(new MutableObject<ILogicalOperator>(input.op));
-                    roots.add(new MutableObject<ILogicalOperator>(op));
-                }
-                    break;
-
-                case ASSIGNMENT: {
-                    AssignmentNode asn = (AssignmentNode) an;
-                    String alias = asn.getAlias();
-                    RelationNode rn = asn.getRelation();
-                    Relation rel = translate(rn, symMap);
-                    previousOp = rel.op;
-                    rel.alias = alias;
-                    symMap.put(alias, rel);
-                }
-                    break;
-            }
-        }
-        return new ALogicalPlanImpl(roots);
-    }
-
-    private Relation translate(RelationNode rn, Map<String, Relation> symMap) throws PigletException {
-        switch (rn.getTag()) {
-            case LOAD: {
-                LoadNode ln = (LoadNode) rn;
-                String file = ln.getDataFile();
-                Schema schema = ln.getSchema();
-                List<Pair<String, Type>> fieldsSchema = schema.getSchema();
-                List<LogicalVariable> variables = new ArrayList<LogicalVariable>();
-                List<Object> types = new ArrayList<Object>();
-                Relation rel = new Relation();
-                for (Pair<String, Type> p : fieldsSchema) {
-                    LogicalVariable v = newVariable();
-                    rel.schema.put(p.first, v);
-                    variables.add(v);
-                    types.add(p.second);
-                }
-                PigletFileDataSource ds = new PigletFileDataSource(file, types.toArray());
-                rel.op = new DataSourceScanOperator(variables, ds);
-                rel.op.getInputs().add(new MutableObject<ILogicalOperator>(
-                        previousOp == null ? new EmptyTupleSourceOperator() : previousOp));
-                return rel;
-            }
-
-            case FILTER: {
-                FilterNode fn = (FilterNode) rn;
-                String alias = fn.getAlias();
-                ExpressionNode conditionNode = fn.getExpression();
-                Relation inputRel = findInputRelation(alias, symMap);
-                Pair<Relation, LogicalVariable> tempInput = translateScalarExpression(inputRel, conditionNode);
-                Relation rel = new Relation();
-                rel.op = new SelectOperator(
-                        new MutableObject<ILogicalExpression>(new VariableReferenceExpression(tempInput.second)), false,
-                        null);
-                rel.op.getInputs().add(new MutableObject<ILogicalOperator>(tempInput.first.op));
-                rel.schema.putAll(tempInput.first.schema);
-                return rel;
-            }
-        }
-        throw new IllegalArgumentException("Unknown node: " + rn.getTag() + " encountered");
-    }
-
-    private Pair<Relation, LogicalVariable> translateScalarExpression(Relation inputRel, ExpressionNode expressionNode)
-            throws PigletException {
-        switch (expressionNode.getTag()) {
-            case FIELD_ACCESS: {
-                FieldAccessExpressionNode faen = (FieldAccessExpressionNode) expressionNode;
-                String fieldName = faen.getFieldName();
-                LogicalVariable lVar = findField(fieldName, inputRel.schema);
-                return new Pair<Relation, LogicalVariable>(inputRel, lVar);
-            }
-
-            case LITERAL: {
-                LiteralExpressionNode len = (LiteralExpressionNode) expressionNode;
-                String image = len.getImage();
-                Type type = len.getType();
-                ConstantExpression ce = new ConstantExpression(new ConstantValue(type, image));
-                Relation rel = new Relation();
-                LogicalVariable var = newVariable();
-                List<LogicalVariable> vars = new ArrayList<LogicalVariable>();
-                vars.add(var);
-
-                List<Mutable<ILogicalExpression>> exprs = new ArrayList<Mutable<ILogicalExpression>>();
-                exprs.add(new MutableObject<ILogicalExpression>(ce));
-
-                rel.op = new AssignOperator(vars, exprs);
-                rel.op.getInputs().add(new MutableObject<ILogicalOperator>(inputRel.op));
-                rel.schema.putAll(inputRel.schema);
-
-                return new Pair<Relation, LogicalVariable>(rel, var);
-            }
-
-            case SCALAR_FUNCTION: {
-                ScalarFunctionExpressionNode sfen = (ScalarFunctionExpressionNode) expressionNode;
-                List<Mutable<ILogicalExpression>> argExprs = new ArrayList<Mutable<ILogicalExpression>>();
-                List<ASTNode> arguments = sfen.getArguments();
-                Relation rel = inputRel;
-                for (ASTNode a : arguments) {
-                    Pair<Relation, LogicalVariable> argPair = translateScalarExpression(rel, (ExpressionNode) a);
-                    rel = argPair.first;
-                    argExprs.add(
-                            new MutableObject<ILogicalExpression>(new VariableReferenceExpression(argPair.second)));
-                }
-                Relation outRel = new Relation();
-                outRel.schema.putAll(rel.schema);
-                LogicalVariable var = newVariable();
-                List<LogicalVariable> vars = new ArrayList<LogicalVariable>();
-                vars.add(var);
-
-                IFunctionInfo fInfo = lookupFunction(sfen.getFunctionTag(), sfen.getFunctionName());
-
-                List<Mutable<ILogicalExpression>> exprs = new ArrayList<Mutable<ILogicalExpression>>();
-                exprs.add(new MutableObject<ILogicalExpression>(new ScalarFunctionCallExpression(fInfo, argExprs)));
-                outRel.op = new AssignOperator(vars, exprs);
-                outRel.op.getInputs().add(new MutableObject<ILogicalOperator>(rel.op));
-                return new Pair<Relation, LogicalVariable>(outRel, var);
-            }
-        }
-        return null;
-    }
-
-    private IFunctionInfo lookupFunction(FunctionTag functionTag, String functionName) throws PigletException {
-        switch (functionTag) {
-            case EQ:
-                return metadataProvider.lookupFunction(AlgebricksBuiltinFunctions.EQ);
-
-            case NEQ:
-                return metadataProvider.lookupFunction(AlgebricksBuiltinFunctions.NEQ);
-
-            case LT:
-                return metadataProvider.lookupFunction(AlgebricksBuiltinFunctions.LT);
-
-            case LTE:
-                return metadataProvider.lookupFunction(AlgebricksBuiltinFunctions.LE);
-
-            case GT:
-                return metadataProvider.lookupFunction(AlgebricksBuiltinFunctions.GT);
-
-            case GTE:
-                return metadataProvider.lookupFunction(AlgebricksBuiltinFunctions.GE);
-        }
-        throw new PigletException("Unsupported function: " + functionTag);
-    }
-
-    private LogicalVariable newVariable() {
-        return new LogicalVariable(varCounter++);
-    }
-
-    private LogicalVariable findField(String fieldName, Map<String, LogicalVariable> schema) throws PigletException {
-        LogicalVariable var = schema.get(fieldName);
-        if (var == null) {
-            throw new PigletException("Unable to find field named: " + fieldName);
-        }
-        return var;
-    }
-
-    private Relation findInputRelation(String alias, Map<String, Relation> symMap) throws PigletException {
-        Relation rel = symMap.get(alias);
-        if (rel == null) {
-            throw new PigletException("Unknown alias " + alias + "referenced");
-        }
-        return rel;
-    }
-
-    private static class Relation {
-        String alias;
-        ILogicalOperator op;
-        final Map<String, LogicalVariable> schema;
-
-        public Relation() {
-            schema = new LinkedHashMap<String, LogicalVariable>();
-        }
-    }
-
-    private String getPrettyPrintedPlan(ILogicalPlan plan) throws AlgebricksException {
-        LogicalOperatorPrettyPrintVisitor v = new LogicalOperatorPrettyPrintVisitor();
-        PlanPrettyPrinter.printPlan(plan, v, 0);
-        return v.get().toString();
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/compiler/PigletPrinterFactoryProvider.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/compiler/PigletPrinterFactoryProvider.java
deleted file mode 100644
index 135a9a7..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/compiler/PigletPrinterFactoryProvider.java
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.compiler;
-
-import java.io.IOException;
-import java.io.PrintStream;
-
-import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
-import org.apache.hyracks.algebricks.data.IPrinter;
-import org.apache.hyracks.algebricks.data.IPrinterFactory;
-import org.apache.hyracks.algebricks.data.IPrinterFactoryProvider;
-import org.apache.hyracks.algebricks.data.impl.IntegerPrinterFactory;
-import org.apache.hyracks.algebricks.examples.piglet.types.Type;
-import org.apache.hyracks.api.exceptions.HyracksDataException;
-import org.apache.hyracks.data.std.primitive.FloatPointable;
-import org.apache.hyracks.util.string.UTF8StringUtil;
-
-public class PigletPrinterFactoryProvider implements IPrinterFactoryProvider {
-
-    public static final PigletPrinterFactoryProvider INSTANCE = new PigletPrinterFactoryProvider();
-
-    private PigletPrinterFactoryProvider() {
-    }
-
-    @Override
-    public IPrinterFactory getPrinterFactory(Object type) {
-        Type t = (Type) type;
-        switch (t.getTag()) {
-            case INTEGER:
-                return IntegerPrinterFactory.INSTANCE;
-            case CHAR_ARRAY:
-                return CharArrayPrinterFactory.INSTANCE;
-            case FLOAT:
-                return FloatPrinterFactory.INSTANCE;
-            default:
-                throw new UnsupportedOperationException();
-
-        }
-    }
-
-    public static class CharArrayPrinterFactory implements IPrinterFactory {
-
-        private static final long serialVersionUID = 1L;
-
-        public static final CharArrayPrinterFactory INSTANCE = new CharArrayPrinterFactory();
-
-        private CharArrayPrinterFactory() {
-        }
-
-        @Override
-        public IPrinter createPrinter() {
-            return new IPrinter() {
-                @Override
-                public void init() {
-                }
-
-                @Override
-                public void print(byte[] b, int s, int l, PrintStream ps) throws HyracksDataException {
-                    try {
-                        UTF8StringUtil.printUTF8StringWithQuotes(b, s, l, ps);
-                    } catch (IOException e) {
-                        throw new HyracksDataException(e);
-                    }
-                }
-            };
-        }
-    }
-
-    public static class FloatPrinterFactory implements IPrinterFactory {
-
-        private static final long serialVersionUID = 1L;
-
-        public static final FloatPrinterFactory INSTANCE = new FloatPrinterFactory();
-
-        private FloatPrinterFactory() {
-        }
-
-        @Override
-        public IPrinter createPrinter() {
-            return new IPrinter() {
-                @Override
-                public void init() throws HyracksDataException {
-                }
-
-                @Override
-                public void print(byte[] b, int s, int l, PrintStream ps) throws HyracksDataException {
-                    ps.print(FloatPointable.getFloat(b, s));
-                }
-            };
-        }
-    }
-
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/exceptions/PigletException.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/exceptions/PigletException.java
deleted file mode 100644
index 67f9d5b..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/exceptions/PigletException.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.exceptions;
-
-public class PigletException extends Exception {
-    private static final long serialVersionUID = 1L;
-
-    public PigletException(String message) {
-        super(message);
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/FileSplitUtils.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/FileSplitUtils.java
deleted file mode 100644
index 5d9576f..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/FileSplitUtils.java
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.metadata;
-
-import java.io.File;
-
-import org.apache.hyracks.api.io.FileSplit;
-import org.apache.hyracks.api.io.UnmanagedFileSplit;
-
-public class FileSplitUtils {
-    public static FileSplit[] parseFileSplits(String fileSplits) {
-        String[] splits = fileSplits.split(",");
-        FileSplit[] fSplits = new FileSplit[splits.length];
-        for (int i = 0; i < splits.length; ++i) {
-            String s = splits[i].trim();
-            int idx = s.indexOf(':');
-            if (idx < 0) {
-                throw new IllegalArgumentException("File split " + s + " not well formed");
-            }
-            fSplits[i] = new UnmanagedFileSplit(s.substring(0, idx), new File(s.substring(idx + 1)).getAbsolutePath());
-        }
-        return fSplits;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSink.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSink.java
deleted file mode 100644
index d0d94ac..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSink.java
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.metadata;
-
-import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSink;
-import org.apache.hyracks.algebricks.core.algebra.properties.FileSplitDomain;
-import org.apache.hyracks.algebricks.core.algebra.properties.IPartitioningProperty;
-import org.apache.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
-import org.apache.hyracks.api.io.FileSplit;
-
-public class PigletFileDataSink implements IDataSink {
-    private String file;
-
-    private FileSplit[] fileSplits;
-
-    private IPartitioningProperty partProp;
-
-    public PigletFileDataSink(String file) {
-        this.file = file;
-        fileSplits = FileSplitUtils.parseFileSplits(file);
-        partProp = new RandomPartitioningProperty(new FileSplitDomain(fileSplits));
-    }
-
-    @Override
-    public Object getId() {
-        return file;
-    }
-
-    public FileSplit[] getFileSplits() {
-        return fileSplits;
-    }
-
-    @Override
-    public Object[] getSchemaTypes() {
-        return null;
-    }
-
-    @Override
-    public IPartitioningProperty getPartitioningProperty() {
-        return partProp;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSource.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSource.java
deleted file mode 100644
index 6a675fc..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletFileDataSource.java
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.metadata;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import org.apache.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSource;
-import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSourcePropertiesProvider;
-import org.apache.hyracks.algebricks.core.algebra.properties.FileSplitDomain;
-import org.apache.hyracks.algebricks.core.algebra.properties.FunctionalDependency;
-import org.apache.hyracks.algebricks.core.algebra.properties.ILocalStructuralProperty;
-import org.apache.hyracks.algebricks.core.algebra.properties.INodeDomain;
-import org.apache.hyracks.algebricks.core.algebra.properties.IPhysicalPropertiesVector;
-import org.apache.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
-import org.apache.hyracks.algebricks.core.algebra.properties.StructuralPropertiesVector;
-import org.apache.hyracks.api.io.FileSplit;
-
-public class PigletFileDataSource implements IDataSource<String> {
-    private final String file;
-
-    private final Object[] types;
-
-    private final FileSplit[] fileSplits;
-
-    private IDataSourcePropertiesProvider propProvider;
-
-    public PigletFileDataSource(String file, Object[] types) {
-        this.file = file;
-        this.types = types;
-        fileSplits = FileSplitUtils.parseFileSplits(file);
-        final IPhysicalPropertiesVector vec = new StructuralPropertiesVector(new RandomPartitioningProperty(
-                new FileSplitDomain(fileSplits)), new ArrayList<ILocalStructuralProperty>());
-        propProvider = new IDataSourcePropertiesProvider() {
-            @Override
-            public IPhysicalPropertiesVector computePropertiesVector(List<LogicalVariable> scanVariables) {
-                return vec;
-            }
-        };
-
-    }
-
-    @Override
-    public INodeDomain getDomain() {
-        return new FileSplitDomain(fileSplits);
-    }
-
-    @Override
-    public String getId() {
-        return file;
-    }
-
-    @Override
-    public Object[] getSchemaTypes() {
-        return types;
-    }
-
-    public FileSplit[] getFileSplits() {
-        return fileSplits;
-    }
-
-    @Override
-    public IDataSourcePropertiesProvider getPropertiesProvider() {
-        return propProvider;
-    }
-
-    @Override
-    public void computeFDs(List<LogicalVariable> scanVariables, List<FunctionalDependency> fdList) {
-    }
-
-    @Override
-    public boolean isScanAccessPathALeaf() {
-        return true;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletFunction.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletFunction.java
deleted file mode 100644
index 06d9b25..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletFunction.java
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.metadata;
-
-import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import org.apache.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
-
-public class PigletFunction implements IFunctionInfo {
-    private final FunctionIdentifier fid;
-
-    public PigletFunction(FunctionIdentifier fid) {
-        this.fid = fid;
-    }
-
-    @Override
-    public FunctionIdentifier getFunctionIdentifier() {
-        return fid;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletMetadataProvider.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletMetadataProvider.java
deleted file mode 100644
index 3f7f56d..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/metadata/PigletMetadataProvider.java
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.metadata;
-
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import org.apache.hyracks.algebricks.common.constraints.AlgebricksAbsolutePartitionConstraint;
-import org.apache.hyracks.algebricks.common.constraints.AlgebricksPartitionConstraint;
-import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
-import org.apache.hyracks.algebricks.common.utils.Pair;
-import org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import org.apache.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import org.apache.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
-import org.apache.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
-import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import org.apache.hyracks.algebricks.core.algebra.functions.IFunctionInfo;
-import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSink;
-import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSource;
-import org.apache.hyracks.algebricks.core.algebra.metadata.IDataSourceIndex;
-import org.apache.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
-import org.apache.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
-import org.apache.hyracks.algebricks.core.jobgen.impl.JobGenContext;
-import org.apache.hyracks.algebricks.data.IPrinterFactory;
-import org.apache.hyracks.algebricks.examples.piglet.types.Type;
-import org.apache.hyracks.algebricks.runtime.base.IPushRuntimeFactory;
-import org.apache.hyracks.algebricks.runtime.operators.std.SinkWriterRuntimeFactory;
-import org.apache.hyracks.algebricks.runtime.writers.PrinterBasedWriterFactory;
-import org.apache.hyracks.api.dataflow.IOperatorDescriptor;
-import org.apache.hyracks.api.dataflow.value.ISerializerDeserializer;
-import org.apache.hyracks.api.dataflow.value.RecordDescriptor;
-import org.apache.hyracks.api.exceptions.HyracksDataException;
-import org.apache.hyracks.api.io.FileSplit;
-import org.apache.hyracks.api.job.JobSpecification;
-import org.apache.hyracks.dataflow.common.data.marshalling.FloatSerializerDeserializer;
-import org.apache.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
-import org.apache.hyracks.dataflow.common.data.marshalling.UTF8StringSerializerDeserializer;
-import org.apache.hyracks.dataflow.common.data.parsers.FloatParserFactory;
-import org.apache.hyracks.dataflow.common.data.parsers.IValueParserFactory;
-import org.apache.hyracks.dataflow.common.data.parsers.IntegerParserFactory;
-import org.apache.hyracks.dataflow.common.data.parsers.UTF8StringParserFactory;
-import org.apache.hyracks.dataflow.std.file.ConstantFileSplitProvider;
-import org.apache.hyracks.dataflow.std.file.DelimitedDataTupleParserFactory;
-import org.apache.hyracks.dataflow.std.file.FileScanOperatorDescriptor;
-import org.apache.hyracks.dataflow.std.file.IFileSplitProvider;
-import org.apache.hyracks.dataflow.std.file.ITupleParserFactory;
-
-public class PigletMetadataProvider implements IMetadataProvider<String, String> {
-    private static final Map<FunctionIdentifier, PigletFunction> FN_MAP;
-
-    static {
-        Map<FunctionIdentifier, PigletFunction> map = new HashMap<>();
-
-        map.put(AlgebricksBuiltinFunctions.EQ, new PigletFunction(AlgebricksBuiltinFunctions.EQ));
-
-        FN_MAP = Collections.unmodifiableMap(map);
-    }
-
-    @Override
-    public IDataSource<String> findDataSource(String id) throws AlgebricksException {
-        return null;
-    }
-
-    @Override
-    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getScannerRuntime(IDataSource<String> dataSource,
-            List<LogicalVariable> scanVariables, List<LogicalVariable> projectVariables, boolean projectPushed,
-            List<LogicalVariable> minFilterVars, List<LogicalVariable> maxFilterVars, IOperatorSchema opSchema,
-            IVariableTypeEnvironment typeEnv, JobGenContext context, JobSpecification jobSpec, Object implConfig)
-            throws AlgebricksException {
-        PigletFileDataSource ds = (PigletFileDataSource) dataSource;
-
-        FileSplit[] fileSplits = ds.getFileSplits();
-        String[] locations = new String[fileSplits.length];
-        for (int i = 0; i < fileSplits.length; ++i) {
-            locations[i] = fileSplits[i].getNodeName();
-        }
-        IFileSplitProvider fsp = new ConstantFileSplitProvider(fileSplits);
-
-        Object[] colTypes = ds.getSchemaTypes();
-        IValueParserFactory[] vpfs = new IValueParserFactory[colTypes.length];
-        ISerializerDeserializer[] serDesers = new ISerializerDeserializer[colTypes.length];
-
-        for (int i = 0; i < colTypes.length; ++i) {
-            Type colType = (Type) colTypes[i];
-            IValueParserFactory vpf;
-            ISerializerDeserializer serDeser;
-            switch (colType.getTag()) {
-                case INTEGER:
-                    vpf = IntegerParserFactory.INSTANCE;
-                    serDeser = IntegerSerializerDeserializer.INSTANCE;
-                    break;
-
-                case CHAR_ARRAY:
-                    vpf = UTF8StringParserFactory.INSTANCE;
-                    serDeser = new UTF8StringSerializerDeserializer();
-                    break;
-
-                case FLOAT:
-                    vpf = FloatParserFactory.INSTANCE;
-                    serDeser = FloatSerializerDeserializer.INSTANCE;
-                    break;
-
-                default:
-                    throw new UnsupportedOperationException();
-            }
-            vpfs[i] = vpf;
-            serDesers[i] = serDeser;
-        }
-
-        ITupleParserFactory tpf = new DelimitedDataTupleParserFactory(vpfs, ',');
-        RecordDescriptor rDesc = new RecordDescriptor(serDesers);
-
-        IOperatorDescriptor scanner = new FileScanOperatorDescriptor(jobSpec, fsp, tpf, rDesc);
-        AlgebricksAbsolutePartitionConstraint constraint = new AlgebricksAbsolutePartitionConstraint(locations);
-        return new Pair<>(scanner, constraint);
-    }
-
-    @Override
-    public Pair<IPushRuntimeFactory, AlgebricksPartitionConstraint> getWriteFileRuntime(IDataSink sink,
-            int[] printColumns, IPrinterFactory[] printerFactories, RecordDescriptor inputDesc)
-            throws AlgebricksException {
-        PigletFileDataSink ds = (PigletFileDataSink) sink;
-        FileSplit[] fileSplits = ds.getFileSplits();
-        String[] locations = new String[fileSplits.length];
-        for (int i = 0; i < fileSplits.length; ++i) {
-            locations[i] = fileSplits[i].getNodeName();
-        }
-        IPushRuntimeFactory prf;
-        try {
-            prf = new SinkWriterRuntimeFactory(printColumns, printerFactories,
-                    fileSplits[0].getFile(null), PrinterBasedWriterFactory.INSTANCE, inputDesc);
-            AlgebricksAbsolutePartitionConstraint constraint = new AlgebricksAbsolutePartitionConstraint(locations);
-            return new Pair<>(prf, constraint);
-        } catch (HyracksDataException e) {
-            throw new AlgebricksException(e);
-        }
-    }
-
-    @Override
-    public IDataSourceIndex<String, String> findDataSourceIndex(String indexId, String dataSourceId)
-            throws AlgebricksException {
-        return null;
-    }
-
-    @Override
-    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getResultHandleRuntime(IDataSink sink,
-            int[] printColumns, IPrinterFactory[] printerFactories, RecordDescriptor inputDesc, boolean ordered,
-            JobSpecification spec) throws AlgebricksException {
-        return null;
-    }
-
-    @Override
-    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getWriteResultRuntime(
-            IDataSource<String> dataSource, IOperatorSchema propagatedSchema, List<LogicalVariable> keys,
-            LogicalVariable payLoadVar, List<LogicalVariable> additionalNonKeyFields, JobGenContext context,
-            JobSpecification jobSpec) throws AlgebricksException {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
-    @Override
-    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getIndexInsertRuntime(
-            IDataSourceIndex<String, String> dataSource, IOperatorSchema propagatedSchema,
-            IOperatorSchema[] inputSchemas, IVariableTypeEnvironment typeEnv, List<LogicalVariable> primaryKeys,
-            List<LogicalVariable> secondaryKeys, List<LogicalVariable> additionalNonKeyFields,
-            ILogicalExpression filterExpr, RecordDescriptor recordDesc, JobGenContext context, JobSpecification spec,
-            boolean bulkload) throws AlgebricksException {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
-    @Override
-    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getIndexDeleteRuntime(
-            IDataSourceIndex<String, String> dataSource, IOperatorSchema propagatedSchema,
-            IOperatorSchema[] inputSchemas, IVariableTypeEnvironment typeEnv, List<LogicalVariable> primaryKeys,
-            List<LogicalVariable> secondaryKeys, List<LogicalVariable> additionalNonKeyFields,
-            ILogicalExpression filterExpr, RecordDescriptor recordDesc, JobGenContext context, JobSpecification spec)
-            throws AlgebricksException {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
-    @Override
-    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getTokenizerRuntime(
-            IDataSourceIndex<String, String> dataSource, IOperatorSchema propagatedSchema,
-            IOperatorSchema[] inputSchemas, IVariableTypeEnvironment typeEnv, List<LogicalVariable> primaryKeys,
-            List<LogicalVariable> secondaryKeys, ILogicalExpression filterExpr, RecordDescriptor recordDesc,
-            JobGenContext context, JobSpecification spec, boolean bulkload) throws AlgebricksException {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
-    @Override
-    public IFunctionInfo lookupFunction(FunctionIdentifier fid) {
-        return FN_MAP.get(fid);
-    }
-
-    @Override
-    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getInsertRuntime(IDataSource<String> dataSource,
-            IOperatorSchema propagatedSchema, IVariableTypeEnvironment typeEnv, List<LogicalVariable> keys,
-            LogicalVariable payLoadVar, List<LogicalVariable> additionalFilterKeyFields,
-            List<LogicalVariable> additionalNonFilteringFields, RecordDescriptor recordDesc, JobGenContext context,
-            JobSpecification jobSpec, boolean bulkload) throws AlgebricksException {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
-    @Override
-    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getDeleteRuntime(IDataSource<String> dataSource,
-            IOperatorSchema propagatedSchema, IVariableTypeEnvironment typeEnv, List<LogicalVariable> keys,
-            LogicalVariable payLoadVar, List<LogicalVariable> additionalNonKeyFields, RecordDescriptor recordDesc,
-            JobGenContext context, JobSpecification jobSpec) throws AlgebricksException {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
-    @Override
-    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getUpsertRuntime(IDataSource<String> dataSource,
-            IOperatorSchema propagatedSchema, IVariableTypeEnvironment typeEnv, List<LogicalVariable> keys,
-            LogicalVariable payLoadVar, List<LogicalVariable> additionalFilterFields,
-            List<LogicalVariable> additionalNonFilteringFields, RecordDescriptor recordDesc, JobGenContext context,
-            JobSpecification jobSpec) throws AlgebricksException {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
-    @Override
-    public Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> getIndexUpsertRuntime(
-            IDataSourceIndex<String, String> dataSourceIndex, IOperatorSchema propagatedSchema,
-            IOperatorSchema[] inputSchemas, IVariableTypeEnvironment typeEnv, List<LogicalVariable> primaryKeys,
-            List<LogicalVariable> secondaryKeys, List<LogicalVariable> additionalFilteringKeys,
-            ILogicalExpression filterExpr, List<LogicalVariable> prevSecondaryKeys,
-            LogicalVariable prevAdditionalFilteringFields, RecordDescriptor inputDesc, JobGenContext context,
-            JobSpecification spec) throws AlgebricksException {
-        // TODO Auto-generated method stub
-        return null;
-    }
-
-    @Override
-    public Map<String, String> getConfig() {
-        return Collections.emptyMap();
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/rewriter/PigletRewriteRuleset.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/rewriter/PigletRewriteRuleset.java
deleted file mode 100644
index 407700f..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/rewriter/PigletRewriteRuleset.java
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.rewriter;
-
-import java.util.LinkedList;
-import java.util.List;
-
-import org.apache.hyracks.algebricks.core.rewriter.base.HeuristicOptimizer;
-import org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
-import org.apache.hyracks.algebricks.rewriter.rules.BreakSelectIntoConjunctsRule;
-import org.apache.hyracks.algebricks.rewriter.rules.ComplexJoinInferenceRule;
-import org.apache.hyracks.algebricks.rewriter.rules.ConsolidateAssignsRule;
-import org.apache.hyracks.algebricks.rewriter.rules.ConsolidateSelectsRule;
-import org.apache.hyracks.algebricks.rewriter.rules.EnforceStructuralPropertiesRule;
-import org.apache.hyracks.algebricks.rewriter.rules.ExtractCommonOperatorsRule;
-import org.apache.hyracks.algebricks.rewriter.rules.ExtractGbyExpressionsRule;
-import org.apache.hyracks.algebricks.rewriter.rules.FactorRedundantGroupAndDecorVarsRule;
-import org.apache.hyracks.algebricks.rewriter.rules.InferTypesRule;
-import org.apache.hyracks.algebricks.rewriter.rules.InlineVariablesRule;
-import org.apache.hyracks.algebricks.rewriter.rules.IsolateHyracksOperatorsRule;
-import org.apache.hyracks.algebricks.rewriter.rules.PullSelectOutOfEqJoin;
-import org.apache.hyracks.algebricks.rewriter.rules.CopyLimitDownRule;
-import org.apache.hyracks.algebricks.rewriter.rules.PushProjectDownRule;
-import org.apache.hyracks.algebricks.rewriter.rules.PushProjectIntoDataSourceScanRule;
-import org.apache.hyracks.algebricks.rewriter.rules.PushSelectDownRule;
-import org.apache.hyracks.algebricks.rewriter.rules.PushSelectIntoJoinRule;
-import org.apache.hyracks.algebricks.rewriter.rules.ReinferAllTypesRule;
-import org.apache.hyracks.algebricks.rewriter.rules.RemoveUnusedAssignAndAggregateRule;
-import org.apache.hyracks.algebricks.rewriter.rules.SetAlgebricksPhysicalOperatorsRule;
-import org.apache.hyracks.algebricks.rewriter.rules.SetExecutionModeRule;
-import org.apache.hyracks.algebricks.rewriter.rules.subplan.EliminateSubplanRule;
-
-public class PigletRewriteRuleset {
-
-    public final static List<IAlgebraicRewriteRule> buildTypeInferenceRuleCollection() {
-        List<IAlgebraicRewriteRule> typeInfer = new LinkedList<IAlgebraicRewriteRule>();
-        typeInfer.add(new InferTypesRule());
-        return typeInfer;
-    }
-
-    public final static List<IAlgebraicRewriteRule> buildNormalizationRuleCollection() {
-        List<IAlgebraicRewriteRule> normalization = new LinkedList<IAlgebraicRewriteRule>();
-        normalization.add(new EliminateSubplanRule());
-        // TODO: This rule is incorrect and has been removed. Its replacement in
-        // Asterix (PushAggFuncIntoStandaloneAggregateRule)
-        // is language-specific.
-        // normalization.add(new IntroduceGroupByForStandaloneAggregRule());
-        normalization.add(new BreakSelectIntoConjunctsRule());
-        normalization.add(new PushSelectIntoJoinRule());
-        normalization.add(new ExtractGbyExpressionsRule());
-        return normalization;
-    }
-
-    public final static List<IAlgebraicRewriteRule> buildCondPushDownRuleCollection() {
-        List<IAlgebraicRewriteRule> condPushDown = new LinkedList<IAlgebraicRewriteRule>();
-        condPushDown.add(new PushSelectDownRule());
-        condPushDown.add(new InlineVariablesRule());
-        condPushDown.add(new FactorRedundantGroupAndDecorVarsRule());
-        condPushDown.add(new EliminateSubplanRule());
-        return condPushDown;
-    }
-
-    public final static List<IAlgebraicRewriteRule> buildJoinInferenceRuleCollection() {
-        List<IAlgebraicRewriteRule> joinInference = new LinkedList<IAlgebraicRewriteRule>();
-        joinInference.add(new InlineVariablesRule());
-        joinInference.add(new ComplexJoinInferenceRule());
-        return joinInference;
-    }
-
-    public final static List<IAlgebraicRewriteRule> buildOpPushDownRuleCollection() {
-        List<IAlgebraicRewriteRule> opPushDown = new LinkedList<IAlgebraicRewriteRule>();
-        opPushDown.add(new PushProjectDownRule());
-        opPushDown.add(new PushSelectDownRule());
-        return opPushDown;
-    }
-
-    public final static List<IAlgebraicRewriteRule> buildDataExchangeRuleCollection() {
-        List<IAlgebraicRewriteRule> dataExchange = new LinkedList<IAlgebraicRewriteRule>();
-        dataExchange.add(new SetExecutionModeRule());
-        return dataExchange;
-    }
-
-    public final static List<IAlgebraicRewriteRule> buildConsolidationRuleCollection() {
-        List<IAlgebraicRewriteRule> consolidation = new LinkedList<IAlgebraicRewriteRule>();
-        consolidation.add(new ConsolidateSelectsRule());
-        consolidation.add(new ConsolidateAssignsRule());
-        consolidation.add(new RemoveUnusedAssignAndAggregateRule());
-        return consolidation;
-    }
-
-    public final static List<IAlgebraicRewriteRule> buildPhysicalRewritesAllLevelsRuleCollection() {
-        List<IAlgebraicRewriteRule> physicalPlanRewrites = new LinkedList<IAlgebraicRewriteRule>();
-        physicalPlanRewrites.add(new PullSelectOutOfEqJoin());
-        physicalPlanRewrites.add(new SetAlgebricksPhysicalOperatorsRule());
-        physicalPlanRewrites.add(new EnforceStructuralPropertiesRule());
-        physicalPlanRewrites.add(new PushProjectDownRule());
-        physicalPlanRewrites.add(new CopyLimitDownRule());
-        return physicalPlanRewrites;
-    }
-
-    public final static List<IAlgebraicRewriteRule> buildPhysicalRewritesTopLevelRuleCollection() {
-        List<IAlgebraicRewriteRule> physicalPlanRewrites = new LinkedList<IAlgebraicRewriteRule>();
-        physicalPlanRewrites.add(new CopyLimitDownRule());
-        return physicalPlanRewrites;
-    }
-
-    public final static List<IAlgebraicRewriteRule> prepareForJobGenRuleCollection() {
-        List<IAlgebraicRewriteRule> prepareForJobGenRewrites = new LinkedList<IAlgebraicRewriteRule>();
-        prepareForJobGenRewrites.add(new IsolateHyracksOperatorsRule(
-                HeuristicOptimizer.hyraxOperatorsBelowWhichJobGenIsDisabled));
-        prepareForJobGenRewrites.add(new ExtractCommonOperatorsRule());
-        // Re-infer all types, so that, e.g., the effect of not-is-null is
-        // propagated.
-        prepareForJobGenRewrites.add(new PushProjectIntoDataSourceScanRule());
-        prepareForJobGenRewrites.add(new ReinferAllTypesRule());
-        return prepareForJobGenRewrites;
-    }
-
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/PigletExpressionJobGen.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/PigletExpressionJobGen.java
deleted file mode 100644
index a19247a..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/PigletExpressionJobGen.java
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.runtime;
-
-import java.io.DataOutput;
-import java.util.Arrays;
-import java.util.List;
-
-import org.apache.commons.lang3.mutable.Mutable;
-
-import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
-import org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression;
-import org.apache.hyracks.algebricks.core.algebra.base.LogicalVariable;
-import org.apache.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression;
-import org.apache.hyracks.algebricks.core.algebra.expressions.ConstantExpression;
-import org.apache.hyracks.algebricks.core.algebra.expressions.ILogicalExpressionJobGen;
-import org.apache.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
-import org.apache.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression;
-import org.apache.hyracks.algebricks.core.algebra.expressions.StatefulFunctionCallExpression;
-import org.apache.hyracks.algebricks.core.algebra.expressions.UnnestingFunctionCallExpression;
-import org.apache.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression;
-import org.apache.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema;
-import org.apache.hyracks.algebricks.core.jobgen.impl.JobGenContext;
-import org.apache.hyracks.algebricks.examples.piglet.compiler.ConstantValue;
-import org.apache.hyracks.algebricks.examples.piglet.exceptions.PigletException;
-import org.apache.hyracks.algebricks.examples.piglet.runtime.functions.PigletFunctionRegistry;
-import org.apache.hyracks.algebricks.examples.piglet.types.Type;
-import org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluatorFactory;
-import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import org.apache.hyracks.algebricks.runtime.base.IRunningAggregateEvaluatorFactory;
-import org.apache.hyracks.algebricks.runtime.base.ISerializedAggregateEvaluatorFactory;
-import org.apache.hyracks.algebricks.runtime.base.IUnnestingEvaluatorFactory;
-import org.apache.hyracks.algebricks.runtime.evaluators.ColumnAccessEvalFactory;
-import org.apache.hyracks.algebricks.runtime.evaluators.ConstantEvalFactory;
-import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
-import org.apache.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer;
-import org.apache.hyracks.dataflow.common.data.marshalling.UTF8StringSerializerDeserializer;
-
-public class PigletExpressionJobGen implements ILogicalExpressionJobGen {
-    private final UTF8StringSerializerDeserializer utf8SerDer = new UTF8StringSerializerDeserializer();
-
-    @Override
-    public IScalarEvaluatorFactory createEvaluatorFactory(ILogicalExpression expr, IVariableTypeEnvironment env,
-            IOperatorSchema[] inputSchemas, JobGenContext context) throws AlgebricksException {
-        switch (expr.getExpressionTag()) {
-            case CONSTANT: {
-                ConstantValue cv = (ConstantValue) ((ConstantExpression) expr).getValue();
-                Type type = cv.getType();
-                String image = cv.getImage();
-                ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
-                DataOutput dos = abvs.getDataOutput();
-                switch (type.getTag()) {
-                    case INTEGER:
-                        try {
-                            IntegerSerializerDeserializer.INSTANCE.serialize(Integer.valueOf(image), dos);
-                        } catch (Exception e) {
-                            throw new AlgebricksException(e);
-                        }
-                        break;
-
-                    case CHAR_ARRAY:
-                        try {
-                            utf8SerDer.serialize(image, dos);
-                        } catch (Exception e) {
-                            throw new AlgebricksException(e);
-                        }
-                        break;
-
-                    default:
-                        throw new UnsupportedOperationException("Unsupported constant type: " + type.getTag());
-                }
-                return new ConstantEvalFactory(Arrays.copyOf(abvs.getByteArray(), abvs.getLength()));
-            }
-
-            case FUNCTION_CALL: {
-                ScalarFunctionCallExpression sfce = (ScalarFunctionCallExpression) expr;
-
-                List<Mutable<ILogicalExpression>> argExprs = sfce.getArguments();
-                IScalarEvaluatorFactory argEvalFactories[] = new IScalarEvaluatorFactory[argExprs.size()];
-                for (int i = 0; i < argEvalFactories.length; ++i) {
-                    Mutable<ILogicalExpression> er = argExprs.get(i);
-                    argEvalFactories[i] = createEvaluatorFactory(er.getValue(), env, inputSchemas, context);
-                }
-                IScalarEvaluatorFactory funcEvalFactory;
-                try {
-                    funcEvalFactory = PigletFunctionRegistry.createFunctionEvaluatorFactory(
-                            sfce.getFunctionIdentifier(), argEvalFactories);
-                } catch (PigletException e) {
-                    throw new AlgebricksException(e);
-                }
-                return funcEvalFactory;
-            }
-
-            case VARIABLE: {
-                LogicalVariable var = ((VariableReferenceExpression) expr).getVariableReference();
-                int index = inputSchemas[0].findVariable(var);
-                return new ColumnAccessEvalFactory(index);
-            }
-        }
-        throw new IllegalArgumentException("Unknown expression type: " + expr.getExpressionTag());
-    }
-
-    @Override
-    public IAggregateEvaluatorFactory createAggregateFunctionFactory(AggregateFunctionCallExpression expr,
-            IVariableTypeEnvironment env, IOperatorSchema[] inputSchemas, JobGenContext context)
-            throws AlgebricksException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public ISerializedAggregateEvaluatorFactory createSerializableAggregateFunctionFactory(
-            AggregateFunctionCallExpression expr, IVariableTypeEnvironment env, IOperatorSchema[] inputSchemas,
-            JobGenContext context) throws AlgebricksException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public IRunningAggregateEvaluatorFactory createRunningAggregateFunctionFactory(StatefulFunctionCallExpression expr,
-            IVariableTypeEnvironment env, IOperatorSchema[] inputSchemas, JobGenContext context)
-            throws AlgebricksException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public IUnnestingEvaluatorFactory createUnnestingFunctionFactory(UnnestingFunctionCallExpression expr,
-            IVariableTypeEnvironment env, IOperatorSchema[] inputSchemas, JobGenContext context)
-            throws AlgebricksException {
-        throw new UnsupportedOperationException();
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/functions/IPigletFunctionEvaluatorFactoryBuilder.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/functions/IPigletFunctionEvaluatorFactoryBuilder.java
deleted file mode 100644
index 4c0328b..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/functions/IPigletFunctionEvaluatorFactoryBuilder.java
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.runtime.functions;
-
-import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-
-public interface IPigletFunctionEvaluatorFactoryBuilder {
-    public IScalarEvaluatorFactory buildEvaluatorFactory(FunctionIdentifier fid, IScalarEvaluatorFactory[] arguments);
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/functions/IntegerEqFunctionEvaluatorFactory.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/functions/IntegerEqFunctionEvaluatorFactory.java
deleted file mode 100644
index 7a83126..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/functions/IntegerEqFunctionEvaluatorFactory.java
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.runtime.functions;
-
-import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
-import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-import org.apache.hyracks.api.context.IHyracksTaskContext;
-import org.apache.hyracks.api.exceptions.HyracksDataException;
-import org.apache.hyracks.data.std.api.IPointable;
-import org.apache.hyracks.data.std.primitive.IntegerPointable;
-import org.apache.hyracks.data.std.primitive.VoidPointable;
-import org.apache.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
-
-public class IntegerEqFunctionEvaluatorFactory implements IScalarEvaluatorFactory {
-    private static final long serialVersionUID = 1L;
-
-    private final IScalarEvaluatorFactory arg1Factory;
-
-    private final IScalarEvaluatorFactory arg2Factory;
-
-    public IntegerEqFunctionEvaluatorFactory(IScalarEvaluatorFactory arg1Factory, IScalarEvaluatorFactory arg2Factory) {
-        this.arg1Factory = arg1Factory;
-        this.arg2Factory = arg2Factory;
-    }
-
-    @Override
-    public IScalarEvaluator createScalarEvaluator(final IHyracksTaskContext ctx) throws HyracksDataException {
-        return new IScalarEvaluator() {
-            private IPointable out1 = new VoidPointable();
-            private IPointable out2 = new VoidPointable();
-            private IScalarEvaluator eval1 = arg1Factory.createScalarEvaluator(ctx);
-            private IScalarEvaluator eval2 = arg2Factory.createScalarEvaluator(ctx);
-            private byte[] resultData = new byte[1];
-
-            @Override
-            public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
-                eval1.evaluate(tuple, out1);
-                eval2.evaluate(tuple, out2);
-                int v1 = IntegerPointable.getInteger(out1.getByteArray(), out1.getStartOffset());
-                int v2 = IntegerPointable.getInteger(out2.getByteArray(), out2.getStartOffset());
-                boolean r = v1 == v2;
-                resultData[0] = r ? (byte) 1 : (byte) 0;
-                result.set(resultData, 0, 1);
-            }
-        };
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/functions/PigletFunctionRegistry.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/functions/PigletFunctionRegistry.java
deleted file mode 100644
index 366f238..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/runtime/functions/PigletFunctionRegistry.java
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.runtime.functions;
-
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-
-import org.apache.hyracks.algebricks.core.algebra.functions.AlgebricksBuiltinFunctions;
-import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
-import org.apache.hyracks.algebricks.examples.piglet.exceptions.PigletException;
-import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
-
-public class PigletFunctionRegistry {
-    private static final Map<FunctionIdentifier, IPigletFunctionEvaluatorFactoryBuilder> builderMap;
-
-    static {
-        Map<FunctionIdentifier, IPigletFunctionEvaluatorFactoryBuilder> temp = new HashMap<FunctionIdentifier, IPigletFunctionEvaluatorFactoryBuilder>();
-
-        temp.put(AlgebricksBuiltinFunctions.EQ, new IPigletFunctionEvaluatorFactoryBuilder() {
-            @Override
-            public IScalarEvaluatorFactory buildEvaluatorFactory(FunctionIdentifier fid, IScalarEvaluatorFactory[] arguments) {
-                return new IntegerEqFunctionEvaluatorFactory(arguments[0], arguments[1]);
-            }
-        });
-
-        builderMap = Collections.unmodifiableMap(temp);
-    }
-
-    public static IScalarEvaluatorFactory createFunctionEvaluatorFactory(FunctionIdentifier fid, IScalarEvaluatorFactory[] args)
-            throws PigletException {
-        IPigletFunctionEvaluatorFactoryBuilder builder = builderMap.get(fid);
-        if (builder == null) {
-            throw new PigletException("Unknown function: " + fid);
-        }
-        return builder.buildEvaluatorFactory(fid, args);
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/BagType.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/BagType.java
deleted file mode 100644
index 551663b..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/BagType.java
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.types;
-
-public class BagType extends Type {
-    @Override
-    public Tag getTag() {
-        return Tag.BAG;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/CharArrayType.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/CharArrayType.java
deleted file mode 100644
index 03bb154..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/CharArrayType.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.types;
-
-public class CharArrayType extends Type {
-    public static final Type INSTANCE = new CharArrayType();
-
-    private CharArrayType() {
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.CHAR_ARRAY;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/DoubleType.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/DoubleType.java
deleted file mode 100644
index 2db0edd..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/DoubleType.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.types;
-
-public class DoubleType extends Type {
-    public static final Type INSTANCE = new DoubleType();
-
-    private DoubleType() {
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.DOUBLE;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/FloatType.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/FloatType.java
deleted file mode 100644
index 35fe797..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/FloatType.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.types;
-
-public class FloatType extends Type {
-    public static final Type INSTANCE = new FloatType();
-
-    private FloatType() {
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.FLOAT;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/IntegerType.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/IntegerType.java
deleted file mode 100644
index 57caa1b..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/IntegerType.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.types;
-
-public class IntegerType extends Type {
-    public static final Type INSTANCE = new IntegerType();
-
-    private IntegerType() {
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.INTEGER;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/LongType.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/LongType.java
deleted file mode 100644
index c8f0738..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/LongType.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.types;
-
-public class LongType extends Type {
-    public static final Type INSTANCE = new LongType();
-
-    private LongType() {
-    }
-
-    @Override
-    public Tag getTag() {
-        return Tag.LONG;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/MapType.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/MapType.java
deleted file mode 100644
index ae57255..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/MapType.java
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.types;
-
-public class MapType extends Type {
-    @Override
-    public Tag getTag() {
-        return Tag.MAP;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/Schema.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/Schema.java
deleted file mode 100644
index 4b7f767..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/Schema.java
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.types;
-
-import java.util.List;
-
-import org.apache.hyracks.algebricks.common.utils.Pair;
-
-public class Schema {
-    private List<Pair<String, Type>> schema;
-
-    public Schema(List<Pair<String, Type>> schema) {
-        this.schema = schema;
-    }
-
-    public List<Pair<String, Type>> getSchema() {
-        return schema;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/TupleType.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/TupleType.java
deleted file mode 100644
index 713b846..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/TupleType.java
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.types;
-
-public class TupleType extends Type {
-    @Override
-    public Tag getTag() {
-        return Tag.TUPLE;
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/Type.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/Type.java
deleted file mode 100644
index f8ffe93..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/java/org/apache/hyracks/algebricks/examples/piglet/types/Type.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.hyracks.algebricks.examples.piglet.types;
-
-public abstract class Type {
-    public enum Tag {
-        INTEGER,
-        LONG,
-        FLOAT,
-        DOUBLE,
-        CHAR_ARRAY,
-        TUPLE,
-        BAG,
-        MAP
-    }
-
-    public abstract Tag getTag();
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/javacc/PigletParser.jj b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/javacc/PigletParser.jj
deleted file mode 100644
index 103003c..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/main/javacc/PigletParser.jj
+++ /dev/null
@@ -1,395 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-options {
-    STATIC = false;
-    IGNORE_CASE = true;
-    LOOKAHEAD = 2;
-}
-
-PARSER_BEGIN(PigletParser)
-
-package org.apache.hyracks.algebricks.examples.piglet.parser;
-
-import java.util.*;
-import org.apache.hyracks.algebricks.common.utils.Pair;
-import org.apache.hyracks.algebricks.examples.piglet.ast.*;
-import org.apache.hyracks.algebricks.examples.piglet.types.*;
-
-public class PigletParser {
-    private ExpressionNode createFunction(FunctionTag fTag, String fName, ExpressionNode... arguments) {
-        List<ASTNode> args = new ArrayList<ASTNode>();
-        for(ExpressionNode e : arguments) {
-            args.add(e);
-        }
-        return new ScalarFunctionExpressionNode(fTag, fName, args);
-    }
-    
-    private String stripQuotes(String s) {
-        s = s.substring(1);
-        s = s.substring(0, s.length() - 1);
-        return s;
-    }
-}
-
-PARSER_END(PigletParser)
-
-List<ASTNode> Statements(): {
-    List<ASTNode> statememts = new ArrayList<ASTNode>();
-    ASTNode s;
-} {
-    (
-        (
-            s = AssignmentStatement() {
-                statememts.add(s);
-            }
-            | s = DumpStatement() {
-                statememts.add(s);
-            }
-        ) ";"
-    )* <EOF> {
-        return statememts;
-    }
-}
-
-ASTNode AssignmentStatement(): {
-    String a;
-    RelationNode r;
-} {
-    a = Alias() "=" r = RelationalStatement() {
-        return new AssignmentNode(a, r);
-    }
-}
-
-String Alias(): {
-    Token t;
-} {
-    t = <IDENTIFIER> {
-        return t.image;
-    }
-}
-
-String ColumnName(): {
-    Token t;
-} {
-    t = <IDENTIFIER> {
-        return t.image;
-    }
-}
-
-Type TypeName(): {
-    Token t;
-} {
-    "int" {
-        return IntegerType.INSTANCE;
-    }
-    | "long" {
-        return LongType.INSTANCE;
-    }
-    | "float" {
-        return FloatType.INSTANCE;
-    }
-    | "double" {
-        return DoubleType.INSTANCE;
-    }
-    | "chararray" {
-        return CharArrayType.INSTANCE;
-    }
-    | "tuple" {
-        return new TupleType();
-    }
-    | "bag" {
-        return new BagType();
-    }
-    | "map" {
-        return new MapType();
-    }
-}
-
-Pair<String, Type> ColumnSchema(): {
-    String c;
-    Type t;
-} {
-    c = ColumnName() ":" t = TypeName() {
-        return new Pair<String, Type>(c, t);
-    }
-}
-
-Schema Schema(): {
-    List<Pair<String, Type>> schema = new ArrayList<Pair<String, Type>>();
-    Pair<String, Type> cSchema;
-} {
-    "(" (
-        cSchema = ColumnSchema() {
-            schema.add(cSchema);
-        } (
-            "," cSchema = ColumnSchema() {
-                schema.add(cSchema);
-            }
-        )*
-    )? ")" {
-        return new Schema(schema);
-    }
-}
-
-RelationNode RelationalStatement(): {
-    RelationNode r;
-} {
-    r = LoadStatement() {
-        return r;
-    }
-    | r = FilterStatement() {
-        return r;
-    }
-}
-
-RelationNode LoadStatement(): {
-    Token t;
-    Schema s;
-} {
-    "load" t = <STRING_LITERAL> "as" s = Schema() {
-        return new LoadNode(t.image, s);
-    }
-}
-
-RelationNode FilterStatement(): {
-    String a;
-    ExpressionNode e;
-} {
-    "filter" a = Alias() "by" e = Expression() {
-        return new FilterNode(a, e);
-    }
-}
-
-ASTNode DumpStatement(): {
-    String a;
-    Token t;
-} {
-    "dump" a = Alias() "into" t = <STRING_LITERAL> {
-        return new DumpNode(t.image, a);
-    }
-}
-
-ExpressionNode Expression(): {
-    ExpressionNode e;
-} {
-    e = OrExpression() {
-        return e;
-    }
-}
-
-ExpressionNode OrExpression(): {
-    ExpressionNode e1;
-    ExpressionNode e2;
-} {
-    e1 = AndExpression() (
-        "or" e2 = AndExpression() {
-            e1 = createFunction(FunctionTag.BOOLEAN_OR, null, e1, e2);
-        }
-    )* {
-        return e1;
-    }
-}
-
-ExpressionNode AndExpression(): {
-    ExpressionNode e1;
-    ExpressionNode e2;
-} {
-    e1 = ComparisonExpression() (
-        "and" e2 = ComparisonExpression() {
-            e1 = createFunction(FunctionTag.BOOLEAN_AND, null, e1, e2);
-        }
-    )* {
-        return e1;
-    }
-}
-
-ExpressionNode ComparisonExpression(): {
-    ExpressionNode e1;
-    ExpressionNode e2;
-    FunctionTag fTag;
-} {
-    e1 = AdditiveExpression() (
-        fTag = ComparisonOperator() e2 = AdditiveExpression() {
-            e1 = createFunction(fTag, null, e1, e2);
-        }
-    )? {
-        return e1;
-    }
-}
-
-FunctionTag ComparisonOperator(): {
-} {
-    "==" {
-        return FunctionTag.EQ;
-    }
-    | "!=" {
-        return FunctionTag.NEQ;
-    }
-    | "<" {
-        return FunctionTag.LT;
-    }
-    | "<=" {
-        return FunctionTag.LTE;
-    }
-    | ">" {
-        return FunctionTag.GT;
-    }
-    | ">=" {
-        return FunctionTag.GTE;
-    }
-}
-
-ExpressionNode AdditiveExpression(): {
-    ExpressionNode e1;
-    ExpressionNode e2;
-    FunctionTag fTag;
-} {
-    e1 = MultiplicativeExpression() (
-        fTag = AdditiveOperator() e2 = MultiplicativeExpression() {
-            e1 = createFunction(fTag, null, e1, e2);
-        }
-    )* {
-        return e1;
-    }
-}
-
-FunctionTag AdditiveOperator(): {
-} {
-    "+" {
-        return FunctionTag.ADD;
-    }
-    | "-" {
-        return FunctionTag.SUBTRACT;
-    }
-}
-
-ExpressionNode MultiplicativeExpression(): {
-    ExpressionNode e1;
-    ExpressionNode e2;
-    FunctionTag fTag;
-} {
-    e1 = PrimaryExpression() (
-        fTag = MultiplicativeOperator() e2 = PrimaryExpression() {
-            e1 = createFunction(fTag, null, e1, e2);
-        }
-    )* {
-        return e1;
-    }
-}
-
-FunctionTag MultiplicativeOperator(): {
-} {
-    "*" {
-        return FunctionTag.MULTIPLY;
-    }
-    | "/" {
-        return FunctionTag.DIVIDE;
-    }
-    | "%" {
-        return FunctionTag.MOD;
-    }
-}
-
-ExpressionNode PrimaryExpression(): {
-    ExpressionNode e;
-} {
-    e = Literal() {
-        return e;
-    }
-    | e = FieldAccess() {
-        return e;
-    }
-}
-
-ExpressionNode Literal(): {
-    Token t;
-} {
-    t = <STRING_LITERAL> {
-        return new LiteralExpressionNode(stripQuotes(t.image), CharArrayType.INSTANCE);
-    }
-    | t = <INTEGER_LITERAL> {
-        return new LiteralExpressionNode(t.image, IntegerType.INSTANCE);
-    }
-    | t = <DOUBLE_LITERAL> {
-        return new LiteralExpressionNode(t.image, DoubleType.INSTANCE);
-    }
-}
-
-ExpressionNode FieldAccess(): {
-    String relName = null;
-    Token fieldName;
-} {
-    (relName = Alias() ".")? fieldName = <IDENTIFIER> {
-        return new FieldAccessExpressionNode(relName, fieldName.image);
-    }
-}
-
-<DEFAULT>
-TOKEN : {
-    <STRING_LITERAL: (("\"" (~["\"", "\n"])* "\"") | ("'" (~["'", "\n"])* "'"))>
-    | <IDENTIFIER: <Letter> (<Letter> | <Digit> | <Extender>)*>
-    | <INTEGER_LITERAL: (<Digit>)+>
-    | <DOUBLE_LITERAL: (((<Digit>)* "." (<Digit>)+ (<Exponent>)?) | (<INTEGER_LITERAL> <Exponent>))>
-    | <INDEXED_FIELD: ("$" <INTEGER_LITERAL>)>
-}
-
-TOKEN :
-{
- < #Exponent : ((["+", "-"])? ["E", "e"] <INTEGER_LITERAL>)>
-}
-
-SPECIAL_TOKEN :
-{
- < WhitespaceChar : ["\t", "\r", "\n", " "] >
-}
-
-TOKEN :
-{
- < #Letter : (<BaseChar> | <Ideographic>) >
-}
-
-TOKEN :
-{
- < #BaseChar : ["\u0041" - "\u005a", "\u0061" - "\u007a", "\u00c0" - "\u00d6", "\u00d8" - "\u00f6", "\u00f8" - "\u00ff", "\u0100" - "\u0131", "\u0134" - "\u013e", "\u0141" - "\u0148", "\u014a" - "\u017e", "\u0180" - "\u01c3", "\u01cd" - "\u01f0", "\u01f4" - "\u01f5", "\u01fa" - "\u0217", "\u0250" - "\u02a8", "\u02bb" - "\u02c1", "\u0386", "\u0388" - "\u038a", "\u038c", "\u038e" - "\u03a1", "\u03a3" - "\u03ce", "\u03d0" - "\u03d6", "\u03da", "\u03dc", "\u03de", "\u03e0", "\u03e2" - "\u03f3", "\u0401" - "\u040c", "\u040e" - "\u044f", "\u0451" - "\u045c", "\u045e" - "\u0481", "\u0490" - "\u04c4", "\u04c7" - "\u04c8", "\u04cb" - "\u04cc", "\u04d0" - "\u04eb", "\u04ee" - "\u04f5", "\u04f8" - "\u04f9", "\u0531" - "\u0556", "\u0559", "\u0561" - "\u0586", "\u05d0" - "\u05ea", "\u05f0" - "\u05f2", "\u0621" - "\u063a", "\u0641" - "\u064a", "\u0671" - "\u06b7", "\u06ba" - "\u06be", "\u06c0" - "\u06ce", "\u06d0" - "\u06d3", "\u06d5", "\u06e5" - "\u06e6", "\u0905" - "\u0939", "\u093d", "\u0958" - "\u0961", "\u0985" - "\u098c", "\u098f" - "\u0990", "\u0993" - "\u09a8", "\u09aa" - "\u09b0", "\u09b2", "\u09b6" - "\u09b9", "\u09dc" - "\u09dd", "\u09df" - "\u09e1", "\u09f0" - "\u09f1", "\u0a05" - "\u0a0a", "\u0a0f" - "\u0a10", "\u0a13" - "\u0a28", "\u0a2a" - "\u0a30", "\u0a32" - "\u0a33", "\u0a35" - "\u0a36", "\u0a38" - "\u0a39", "\u0a59" - "\u0a5c", "\u0a5e", "\u0a72" - "\u0a74", "\u0a85" - "\u0a8b", "\u0a8d", "\u0a8f" - "\u0a91", "\u0a93" - "\u0aa8", "\u0aaa" - "\u0ab0", "\u0ab2" - "\u0ab3", "\u0ab5" - "\u0ab9", "\u0abd", "\u0ae0", "\u0b05" - "\u0b0c", "\u0b0f" - "\u0b10", "\u0b13" - "\u0b28", "\u0b2a" - "\u0b30", "\u0b32" - "\u0b33", "\u0b36" - "\u0b39", "\u0b3d", "\u0b5c" - "\u0b5d", "\u0b5f" - "\u0b61", "\u0b85" - "\u0b8a", "\u0b8e" - "\u0b90", "\u0b92" - "\u0b95", "\u0b99" - "\u0b9a", "\u0b9c", "\u0b9e" - "\u0b9f", "\u0ba3" - "\u0ba4", "\u0ba8" - "\u0baa", "\u0bae" - "\u0bb5", "\u0bb7" - "\u0bb9", "\u0c05" - "\u0c0c", "\u0c0e" - "\u0c10", "\u0c12" - "\u0c28", "\u0c2a" - "\u0c33", "\u0c35" - "\u0c39", "\u0c60" - "\u0c61", "\u0c85" - "\u0c8c", "\u0c8e" - "\u0c90", "\u0c92" - "\u0ca8", "\u0caa" - "\u0cb3", "\u0cb5" - "\u0cb9", "\u0cde", "\u0ce0" - "\u0ce1", "\u0d05" - "\u0d0c", "\u0d0e" - "\u0d10", "\u0d12" - "\u0d28", "\u0d2a" - "\u0d39", "\u0d60" - "\u0d61", "\u0e01" - "\u0e2e", "\u0e30", "\u0e32" - "\u0e33", "\u0e40" - "\u0e45", "\u0e81" - "\u0e82", "\u0e84", "\u0e87" - "\u0e88", "\u0e8a", "\u0e8d", "\u0e94" - "\u0e97", "\u0e99" - "\u0e9f", "\u0ea1" - "\u0ea3", "\u0ea5", "\u0ea7", "\u0eaa" - "\u0eab", "\u0ead" - "\u0eae", "\u0eb0", "\u0eb2" - "\u0eb3", "\u0ebd", "\u0ec0" - "\u0ec4", "\u0f40" - "\u0f47", "\u0f49" - "\u0f69", "\u10a0" - "\u10c5", "\u10d0" - "\u10f6", "\u1100", "\u1102" - "\u1103", "\u1105" - "\u1107", "\u1109", "\u110b" - "\u110c", "\u110e" - "\u1112", "\u113c", "\u113e", "\u1140", "\u114c", "\u114e", "\u1150", "\u1154" - "\u1155", "\u1159", "\u115f" - "\u1161", "\u1163", "\u1165", "\u1167", "\u1169", "\u116d" - "\u116e", "\u1172" - "\u1173", "\u1175", "\u119e", "\u11a8", "\u11ab", "\u11ae" - "\u11af", "\u11b7" - "\u11b8", "\u11ba", "\u11bc" - "\u11c2", "\u11eb", "\u11f0", "\u11f9", "\u1e00" - "\u1e9b", "\u1ea0" - "\u1ef9", "\u1f00" - "\u1f15", "\u1f18" - "\u1f1d", "\u1f20" - "\u1f45", "\u1f48" - "\u1f4d", "\u1f50" - "\u1f57", "\u1f59", "\u1f5b", "\u1f5d", "\u1f5f" - "\u1f7d", "\u1f80" - "\u1fb4", "\u1fb6" - "\u1fbc", "\u1fbe", "\u1fc2" - "\u1fc4", "\u1fc6" - "\u1fcc", "\u1fd0" - "\u1fd3", "\u1fd6" - "\u1fdb", "\u1fe0" - "\u1fec", "\u1ff2" - "\u1ff4", "\u1ff6" - "\u1ffc", "\u2126", "\u212a" - "\u212b", "\u212e", "\u2180" - "\u2182", "\u3041" - "\u3094", "\u30a1" - "\u30fa", "\u3105" - "\u312c", "\uac00" - "\ud7a3"] >
-}
-
-TOKEN :
-{
- < #Ideographic : ["\u4e00" - "\u9fa5", "\u3007", "\u3021" - "\u3029"] >
-}
-
-TOKEN :
-{
- < #CombiningChar : ["\u0300" - "\u0345", "\u0360" - "\u0361", "\u0483" - "\u0486", "\u0591" - "\u05a1", "\u05a3" - "\u05b9", "\u05bb" - "\u05bd", "\u05bf", "\u05c1" - "\u05c2", "\u05c4", "\u064b" - "\u0652", "\u0670", "\u06d6" - "\u06dc", "\u06dd" - "\u06df", "\u06e0" - "\u06e4", "\u06e7" - "\u06e8", "\u06ea" - "\u06ed", "\u0901" - "\u0903", "\u093c", "\u093e" - "\u094c", "\u094d", "\u0951" - "\u0954", "\u0962" - "\u0963", "\u0981" - "\u0983", "\u09bc", "\u09be", "\u09bf", "\u09c0" - "\u09c4", "\u09c7" - "\u09c8", "\u09cb" - "\u09cd", "\u09d7", "\u09e2" - "\u09e3", "\u0a02", "\u0a3c", "\u0a3e", "\u0a3f", "\u0a40" - "\u0a42", "\u0a47" - "\u0a48", "\u0a4b" - "\u0a4d", "\u0a70" - "\u0a71", "\u0a81" - "\u0a83", "\u0abc", "\u0abe" - "\u0ac5", "\u0ac7" - "\u0ac9", "\u0acb" - "\u0acd", "\u0b01" - "\u0b03", "\u0b3c", "\u0b3e" - "\u0b43", "\u0b47" - "\u0b48", "\u0b4b" - "\u0b4d", "\u0b56" - "\u0b57", "\u0b82" - "\u0b83", "\u0bbe" - "\u0bc2", "\u0bc6" - "\u0bc8", "\u0bca" - "\u0bcd", "\u0bd7", "\u0c01" - "\u0c03", "\u0c3e" - "\u0c44", "\u0c46" - "\u0c48", "\u0c4a" - "\u0c4d", "\u0c55" - "\u0c56", "\u0c82" - "\u0c83", "\u0cbe" - "\u0cc4", "\u0cc6" - "\u0cc8", "\u0cca" - "\u0ccd", "\u0cd5" - "\u0cd6", "\u0d02" - "\u0d03", "\u0d3e" - "\u0d43", "\u0d46" - "\u0d48", "\u0d4a" - "\u0d4d", "\u0d57", "\u0e31", "\u0e34" - "\u0e3a", "\u0e47" - "\u0e4e", "\u0eb1", "\u0eb4" - "\u0eb9", "\u0ebb" - "\u0ebc", "\u0ec8" - "\u0ecd", "\u0f18" - "\u0f19", "\u0f35", "\u0f37", "\u0f39", "\u0f3e", "\u0f3f", "\u0f71" - "\u0f84", "\u0f86" - "\u0f8b", "\u0f90" - "\u0f95", "\u0f97", "\u0f99" - "\u0fad", "\u0fb1" - "\u0fb7", "\u0fb9", "\u20d0" - "\u20dc", "\u20e1", "\u302a" - "\u302f", "\u3099", "\u309a"] >
-}
-
-TOKEN :
-{
- < #Digit : ["\u0030" - "\u0039", "\u0660" - "\u0669", "\u06f0" - "\u06f9", "\u0966" - "\u096f", "\u09e6" - "\u09ef", "\u0a66" - "\u0a6f", "\u0ae6" - "\u0aef", "\u0b66" - "\u0b6f", "\u0be7" - "\u0bef", "\u0c66" - "\u0c6f", "\u0ce6" - "\u0cef", "\u0d66" - "\u0d6f", "\u0e50" - "\u0e59", "\u0ed0" - "\u0ed9", "\u0f20" - "\u0f29"] >
-}
-
-TOKEN :
-{
- < #Extender : ["\u00b7", "\u02d0", "\u02d1", "\u0387", "\u0640", "\u0e46", "\u0ec6", "\u3005", "\u3031" - "\u3035", "\u309d" - "\u309e", "\u30fc" - "\u30fe"] >
-}
-
-SKIP:
-{
- <"--" (~["\n","\r"])* ("\n"|"\r"|"\r\n")?>
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/test/java/org/apache/algebricks/examples/piglet/test/PigletTest.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/test/java/org/apache/algebricks/examples/piglet/test/PigletTest.java
deleted file mode 100644
index 4ea43a3..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/test/java/org/apache/algebricks/examples/piglet/test/PigletTest.java
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.algebricks.examples.piglet.test;
-
-import java.io.File;
-
-import junit.framework.Test;
-import junit.framework.TestSuite;
-
-public class PigletTest {
-    public static Test suite() {
-        TestSuite suite = new TestSuite();
-        File dir = new File("testcases");
-        findAndAddTests(suite, dir);
-
-        return suite;
-    }
-
-    private static void findAndAddTests(TestSuite suite, File dir) {
-        for (final File f : dir.listFiles()) {
-            if (f.getName().startsWith(".")) {
-                continue;
-            }
-            if (f.isDirectory()) {
-                findAndAddTests(suite, f);
-            } else if (f.getName().endsWith(".piglet")) {
-                suite.addTest(new PigletTestCase(f));
-            }
-        }
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/test/java/org/apache/algebricks/examples/piglet/test/PigletTestCase.java b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/test/java/org/apache/algebricks/examples/piglet/test/PigletTestCase.java
deleted file mode 100644
index 3964edc..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/src/test/java/org/apache/algebricks/examples/piglet/test/PigletTestCase.java
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.algebricks.examples.piglet.test;
-
-import java.io.File;
-import java.io.FileReader;
-import java.util.List;
-
-import junit.framework.TestCase;
-
-import org.junit.Test;
-
-import org.apache.hyracks.algebricks.examples.piglet.ast.ASTNode;
-import org.apache.hyracks.algebricks.examples.piglet.compiler.PigletCompiler;
-import org.apache.hyracks.api.job.JobSpecification;
-
-public class PigletTestCase extends TestCase {
-
-    private final File file;
-
-    PigletTestCase(File file) {
-        super("testPiglet");
-        this.file = file;
-    }
-
-    @Test
-    public void testPiglet() {
-        try {
-            FileReader in = new FileReader(file);
-            try {
-                PigletCompiler c = new PigletCompiler();
-
-                List<ASTNode> ast = c.parse(in);
-                JobSpecification jobSpec = c.compile(ast);
-
-                System.err.println(jobSpec.toJSON());
-            } finally {
-                in.close();
-            }
-        } catch (Exception e) {
-            throw new RuntimeException(e);
-        }
-    }
-}
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/testcases/q1.piglet b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/testcases/q1.piglet
deleted file mode 100644
index ff1806e..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/testcases/q1.piglet
+++ /dev/null
@@ -1,19 +0,0 @@
--- Licensed to the Apache Software Foundation (ASF) under one
--- or more contributor license agreements.  See the NOTICE file
--- distributed with this work for additional information
--- regarding copyright ownership.  The ASF licenses this file
--- to you under the Apache License, Version 2.0 (the
--- "License"); you may not use this file except in compliance
--- with the License.  You may obtain a copy of the License at
---
---   http://www.apache.org/licenses/LICENSE-2.0
---
--- Unless required by applicable law or agreed to in writing,
--- software distributed under the License is distributed on an
--- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
--- KIND, either express or implied.  See the License for the
--- specific language governing permissions and limitations
--- under the License.
-
-R = load "nc1:data/file1.txt,nc2:data/file2.txt" as (id : int, name : chararray);
-dump R into "nc1:output";
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/testcases/q2.piglet b/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/testcases/q2.piglet
deleted file mode 100644
index 0335b7d..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/piglet-example/testcases/q2.piglet
+++ /dev/null
@@ -1,20 +0,0 @@
--- Licensed to the Apache Software Foundation (ASF) under one
--- or more contributor license agreements.  See the NOTICE file
--- distributed with this work for additional information
--- regarding copyright ownership.  The ASF licenses this file
--- to you under the Apache License, Version 2.0 (the
--- "License"); you may not use this file except in compliance
--- with the License.  You may obtain a copy of the License at
---
---   http://www.apache.org/licenses/LICENSE-2.0
---
--- Unless required by applicable law or agreed to in writing,
--- software distributed under the License is distributed on an
--- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
--- KIND, either express or implied.  See the License for the
--- specific language governing permissions and limitations
--- under the License.
-
-R = load "nc1:data/file1.txt,nc2:data/file2.txt" as (id : int, name : chararray);
-S = filter R by id == 5;
-dump S into "nc1:output";
diff --git a/hyracks-fullstack/algebricks/algebricks-examples/pom.xml b/hyracks-fullstack/algebricks/algebricks-examples/pom.xml
deleted file mode 100644
index 299e76d..0000000
--- a/hyracks-fullstack/algebricks/algebricks-examples/pom.xml
+++ /dev/null
@@ -1,55 +0,0 @@
-<!--
- ! Licensed to the Apache Software Foundation (ASF) under one
- ! or more contributor license agreements.  See the NOTICE file
- ! distributed with this work for additional information
- ! regarding copyright ownership.  The ASF licenses this file
- ! to you under the Apache License, Version 2.0 (the
- ! "License"); you may not use this file except in compliance
- ! with the License.  You may obtain a copy of the License at
- !
- !   http://www.apache.org/licenses/LICENSE-2.0
- !
- ! Unless required by applicable law or agreed to in writing,
- ! software distributed under the License is distributed on an
- ! "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- ! KIND, either express or implied.  See the License for the
- ! specific language governing permissions and limitations
- ! under the License.
- !-->
-
-<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>
-  <artifactId>algebricks-examples</artifactId>
-  <packaging>pom</packaging>
-  <name>algebricks-examples</name>
-  <dependencies>
-    <dependency>
-      <groupId>org.apache.hyracks</groupId>
-      <artifactId>algebricks-core</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-  </dependencies>
-
-  <parent>
-    <groupId>org.apache.hyracks</groupId>
-    <artifactId>algebricks</artifactId>
-    <version>0.3.3-SNAPSHOT</version>
-  </parent>
-
-  <licenses>
-    <license>
-      <name>Apache License, Version 2.0</name>
-      <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
-      <distribution>repo</distribution>
-      <comments>A business-friendly OSS license</comments>
-    </license>
-  </licenses>
-
-  <properties>
-    <root.dir>${basedir}/../..</root.dir>
-  </properties>
-
-  <modules>
-    <module>piglet-example</module>
-  </modules>
-</project>
diff --git a/hyracks-fullstack/algebricks/pom.xml b/hyracks-fullstack/algebricks/pom.xml
index eecb010..274018d 100644
--- a/hyracks-fullstack/algebricks/pom.xml
+++ b/hyracks-fullstack/algebricks/pom.xml
@@ -50,6 +50,5 @@
     <module>algebricks-runtime</module>
     <module>algebricks-rewriter</module>
     <module>algebricks-tests</module>
-    <module>algebricks-examples</module>
   </modules>
 </project>