diff --git a/asterix-app/src/test/resources/runtimets/queries/spatial/spatial_accessors.aql b/asterix-app/src/test/resources/runtimets/queries/spatial/spatial_accessors.aql
new file mode 100644
index 0000000..e87bc24
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/queries/spatial/spatial_accessors.aql
@@ -0,0 +1,21 @@
+/*
+ * Description      :   Test spatial accessors
+ * Expected Result  :   Success
+ * Date             :   Oct 16, 2012
+ */
+
+drop dataverse test if exists;
+create dataverse test;
+use dataverse test;
+
+write output to nc1:"rttest/spatial_spatial_accessors.adm";
+
+let $point := create-point(2.3,5.0)
+let $circle := create-circle(create-point(6.0,3.0), 1.0)
+let $line := create-line(create-point(100.6,999.4), create-point(-872.0,-876.9))
+let $rectangle := create-rectangle(create-point(9.2,49.0), create-point(77.8,111.1))
+let $polygon := create-polygon(create-point(1.0,1.0), create-point(2.0,2.0), create-point(3.0,3.0), create-point(4.0,4.0))
+let $line_list := get-points($line)
+let $rectangle_list := get-points($rectangle)
+let $polygon_list := get-points($polygon)
+return {"x-coordinate": get-x($point), "y-coordinate": get-y($point), "circle-radius": get-radius($circle), "circle-center": get-center($circle), "line-first-point": $line_list[0], "line-second-point": $line_list[1], "rectangle-left-bottom-point": $rectangle_list[0], "rectangle-top-upper-point": $rectangle_list[1], "polygon-first-point": $polygon_list[0], "polygon-second-point": $polygon_list[1], "polygon-third-point": $polygon_list[2], "polygon-forth-point": $polygon_list[3]}
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/spatial/spatial_accessors.adm b/asterix-app/src/test/resources/runtimets/results/spatial/spatial_accessors.adm
new file mode 100644
index 0000000..493a76e
--- /dev/null
+++ b/asterix-app/src/test/resources/runtimets/results/spatial/spatial_accessors.adm
@@ -0,0 +1 @@
+{ "x-coordinate": 2.3d, "y-coordinate": 5.0d, "circle-radius": 1.0d, "circle-center": point("6.0,3.0"), "line-first-point": point("100.6,999.4"), "line-second-point": point("-872.0,-876.9"), "rectangle-left-bottom-point": point("9.2,49.0"), "rectangle-top-upper-point": point("77.8,111.1"), "polygon-first-point": point("1.0,1.0"), "polygon-second-point": point("2.0,2.0"), "polygon-third-point": point("3.0,3.0"), "polygon-forth-point": point("4.0,4.0") }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
index a624cf9..3594358 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
@@ -58,6 +58,7 @@
 import edu.uci.ics.asterix.om.typecomputer.impl.OptionalATimeTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OrderedListConstructorResultType;
 import edu.uci.ics.asterix.om.typecomputer.impl.OrderedListOfAInt32TypeComputer;
+import edu.uci.ics.asterix.om.typecomputer.impl.OrderedListOfAPointTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OrderedListOfAStringTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.OrderedListOfAnyTypeComputer;
 import edu.uci.ics.asterix.om.typecomputer.impl.QuadStringStringOrNullTypeComputer;
@@ -393,6 +394,12 @@
     public final static FunctionIdentifier CAST_RECORD = new FunctionIdentifier(FunctionConstants.ASTERIX_NS,
             "cast-record", 1);
 
+    public final static FunctionIdentifier GET_POINT_X_COORDINATE_ACCESSOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-x", 1);
+    public final static FunctionIdentifier GET_POINT_Y_COORDINATE_ACCESSOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-y", 1);
+    public final static FunctionIdentifier GET_CIRCLE_RADIUS_ACCESSOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-radius", 1);
+    public final static FunctionIdentifier GET_CIRCLE_CENTER_ACCESSOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-center", 1);
+    public final static FunctionIdentifier GET_POINTS_LINE_RECTANGLE_POLYGON_ACCESSOR = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-points", 1);
+    
     public static final FunctionIdentifier EQ = AlgebricksBuiltinFunctions.EQ;
     public static final FunctionIdentifier LE = AlgebricksBuiltinFunctions.LE;
     public static final FunctionIdentifier GE = AlgebricksBuiltinFunctions.GE;
@@ -585,6 +592,11 @@
         add(SPATIAL_CELL, ARectangleTypeComputer.INSTANCE);
         add(SPATIAL_DISTANCE, ADoubleTypeComputer.INSTANCE);
         add(SPATIAL_INTERSECT, ABooleanTypeComputer.INSTANCE);
+        add(GET_POINT_X_COORDINATE_ACCESSOR, ADoubleTypeComputer.INSTANCE);
+        add(GET_POINT_Y_COORDINATE_ACCESSOR, ADoubleTypeComputer.INSTANCE);
+        add(GET_CIRCLE_RADIUS_ACCESSOR, ADoubleTypeComputer.INSTANCE);
+        add(GET_CIRCLE_CENTER_ACCESSOR, APointTypeComputer.INSTANCE);
+        add(GET_POINTS_LINE_RECTANGLE_POLYGON_ACCESSOR, OrderedListOfAPointTypeComputer.INSTANCE);
         add(STARTS_WITH, ABooleanTypeComputer.INSTANCE);
         add(STRING_CONSTRUCTOR, OptionalAStringTypeComputer.INSTANCE);
         add(SUBSET_COLLECTION, new IResultTypeComputer() {
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAPointTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAPointTypeComputer.java
new file mode 100644
index 0000000..f5ffeef
--- /dev/null
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/OrderedListOfAPointTypeComputer.java
@@ -0,0 +1,24 @@
+package edu.uci.ics.asterix.om.typecomputer.impl;
+
+import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.base.ILogicalExpression;
+import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
+import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
+
+public class OrderedListOfAPointTypeComputer implements IResultTypeComputer {
+
+    public static final OrderedListOfAPointTypeComputer INSTANCE = new OrderedListOfAPointTypeComputer();
+
+    private OrderedListOfAPointTypeComputer() {
+    }
+
+    @Override
+    public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
+            IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
+        return new AOrderedListType(BuiltinType.APOINT, null);
+    }
+}
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleCenterAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleCenterAccessor.java
new file mode 100644
index 0000000..9d6aeda
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleCenterAccessor.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutablePoint;
+import edu.uci.ics.asterix.om.base.APoint;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class CircleCenterAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-center", 1);
+    private static final byte SER_CICLE_TAG = ATypeTag.CIRCLE.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CircleCenterAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private AMutablePoint aPoint = new AMutablePoint(0, 0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<APoint> pointSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.APOINT);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+                            double cX;
+                            double cY;
+                            if (bytes[0] == SER_CICLE_TAG) {
+                                cX = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ACircleSerializerDeserializer.getCenterPointCoordinateOffset(Coordinate.X));
+                                cY = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ACircleSerializerDeserializer.getCenterPointCoordinateOffset(Coordinate.Y));
+                            } else {
+                                throw new AlgebricksException("get-center does not support the type: " + bytes[0]
+                                        + " It is only implemented for CIRCLE.");
+                            }
+                            aPoint.setValue(cX, cY);
+                            pointSerde.serialize(aPoint, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleRadiusAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleRadiusAccessor.java
new file mode 100644
index 0000000..27a4c04
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/CircleRadiusAccessor.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADouble;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class CircleRadiusAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-radius", 1);
+    private static final byte SER_CICLE_TAG = ATypeTag.CIRCLE.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new CircleRadiusAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private AMutableDouble aDouble = new AMutableDouble(0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADOUBLE);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+                            double radius;
+                            if (bytes[0] == SER_CICLE_TAG) {
+                                radius = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ACircleSerializerDeserializer.getRadiusOffset());
+                            } else {
+                                throw new AlgebricksException("get-radius does not support the type: " + bytes[0]
+                                        + " It is only implemented for CIRCLE.");
+                            }
+
+                            aDouble.setValue(radius);
+                            doubleSerde.serialize(aDouble, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/LineRectanglePolygonAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/LineRectanglePolygonAccessor.java
new file mode 100644
index 0000000..ea9c599
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/LineRectanglePolygonAccessor.java
@@ -0,0 +1,174 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.builders.IAOrderedListBuilder;
+import edu.uci.ics.asterix.builders.OrderedListBuilder;
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ALineSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APolygonSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.AMutablePoint;
+import edu.uci.ics.asterix.om.base.APoint;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.AOrderedListType;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class LineRectanglePolygonAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-points", 1);
+    private static final byte SER_LINE_TAG = ATypeTag.LINE.serialize();
+    private static final byte SER_RECTANGLE_TAG = ATypeTag.RECTANGLE.serialize();
+    private static final byte SER_POLYGON_TAG = ATypeTag.POLYGON.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new LineRectanglePolygonAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private IAOrderedListBuilder listBuilder = new OrderedListBuilder();
+                    private ArrayBackedValueStorage inputVal = new ArrayBackedValueStorage();
+                    protected final AOrderedListType pointListType = new AOrderedListType(BuiltinType.APOINT, null);
+
+                    private AMutablePoint aPoint = new AMutablePoint(0, 0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<APoint> pointSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.APOINT);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+                            if (bytes[0] == SER_LINE_TAG) {
+                                listBuilder.reset(pointListType);
+
+                                inputVal.reset();
+                                double startX = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ALineSerializerDeserializer.getStartPointCoordinateOffset(Coordinate.X));
+                                double startY = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ALineSerializerDeserializer.getStartPointCoordinateOffset(Coordinate.Y));
+                                aPoint.setValue(startX, startY);
+                                pointSerde.serialize(aPoint, inputVal.getDataOutput());
+                                listBuilder.addItem(inputVal);
+
+                                inputVal.reset();
+                                double endX = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.X));
+                                double endY = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.Y));
+                                aPoint.setValue(endX, endY);
+                                pointSerde.serialize(aPoint, inputVal.getDataOutput());
+                                listBuilder.addItem(inputVal);
+
+                            } else if (bytes[0] == SER_RECTANGLE_TAG) {
+                                listBuilder.reset(pointListType);
+
+                                inputVal.reset();
+                                double x1 = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ARectangleSerializerDeserializer.getBottomLeftCoordinateOffset(Coordinate.X));
+                                double y1 = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ARectangleSerializerDeserializer.getBottomLeftCoordinateOffset(Coordinate.Y));
+                                aPoint.setValue(x1, y1);
+                                pointSerde.serialize(aPoint, inputVal.getDataOutput());
+                                listBuilder.addItem(inputVal);
+
+                                inputVal.reset();
+                                double x2 = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ARectangleSerializerDeserializer.getUpperRightCoordinateOffset(Coordinate.X));
+                                double y2 = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        ARectangleSerializerDeserializer.getUpperRightCoordinateOffset(Coordinate.Y));
+                                aPoint.setValue(x2, y2);
+                                pointSerde.serialize(aPoint, inputVal.getDataOutput());
+                                listBuilder.addItem(inputVal);
+
+                            } else if (bytes[0] == SER_POLYGON_TAG) {
+                                int numOfPoints = AInt16SerializerDeserializer.getShort(bytes,
+                                        APolygonSerializerDeserializer.getNumberOfPointsOffset());
+
+                                if (numOfPoints < 3) {
+                                    throw new HyracksDataException("Polygon must have at least 3 points.");
+                                }
+                                listBuilder.reset(pointListType);
+                                for (int i = 0; i < numOfPoints; ++i) {
+                                    inputVal.reset();
+                                    double x = ADoubleSerializerDeserializer.getDouble(bytes,
+                                            APolygonSerializerDeserializer.getCoordinateOffset(i, Coordinate.X));
+                                    double y = ADoubleSerializerDeserializer.getDouble(bytes,
+                                            APolygonSerializerDeserializer.getCoordinateOffset(i, Coordinate.Y));
+                                    aPoint.setValue(x, y);
+                                    pointSerde.serialize(aPoint, inputVal.getDataOutput());
+                                    listBuilder.addItem(inputVal);
+                                }
+                            } else {
+                                throw new AlgebricksException("get-points does not support the type: " + bytes[0]
+                                        + " It is only implemented for LINE, RECTANGLE, or POLYGON.");
+                            }
+                            listBuilder.write(out, true);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointXCoordinateAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointXCoordinateAccessor.java
new file mode 100644
index 0000000..c619c4a
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointXCoordinateAccessor.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADouble;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class PointXCoordinateAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-x", 1);
+    private static final byte SER_POINT_TAG = ATypeTag.POINT.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new PointXCoordinateAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private AMutableDouble aDouble = new AMutableDouble(0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADOUBLE);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+                            double x;
+                            if (bytes[0] == SER_POINT_TAG) {
+                                x = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        APointSerializerDeserializer.getCoordinateOffset(Coordinate.X));
+                            } else {
+                                throw new AlgebricksException("get-x does not support the type: " + bytes[0]
+                                        + " It is only implemented for POINT.");
+                            }
+
+                            aDouble.setValue(x);
+                            doubleSerde.serialize(aDouble, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointYCoordinateAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointYCoordinateAccessor.java
new file mode 100644
index 0000000..4e6b71e
--- /dev/null
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/accessors/PointYCoordinateAccessor.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2009-2011 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.asterix.runtime.evaluators.accessors;
+
+import java.io.DataOutput;
+import java.io.IOException;
+
+import edu.uci.ics.asterix.common.functions.FunctionConstants;
+import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer;
+import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer;
+import edu.uci.ics.asterix.formats.nontagged.AqlSerializerDeserializerProvider;
+import edu.uci.ics.asterix.om.base.ADouble;
+import edu.uci.ics.asterix.om.base.AMutableDouble;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptor;
+import edu.uci.ics.asterix.om.functions.IFunctionDescriptorFactory;
+import edu.uci.ics.asterix.om.types.ATypeTag;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.runtime.evaluators.base.AbstractScalarFunctionDynamicDescriptor;
+import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
+import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluator;
+import edu.uci.ics.hyracks.algebricks.runtime.base.ICopyEvaluatorFactory;
+import edu.uci.ics.hyracks.api.dataflow.value.ISerializerDeserializer;
+import edu.uci.ics.hyracks.data.std.api.IDataOutputProvider;
+import edu.uci.ics.hyracks.data.std.util.ArrayBackedValueStorage;
+import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
+
+public class PointYCoordinateAccessor extends AbstractScalarFunctionDynamicDescriptor {
+
+    private static final long serialVersionUID = 1L;
+
+    private static final FunctionIdentifier FID = new FunctionIdentifier(FunctionConstants.ASTERIX_NS, "get-y", 1);
+    private static final byte SER_POINT_TAG = ATypeTag.POINT.serialize();
+
+    public static final IFunctionDescriptorFactory FACTORY = new IFunctionDescriptorFactory() {
+
+        @Override
+        public IFunctionDescriptor createFunctionDescriptor() {
+            return new PointYCoordinateAccessor();
+        }
+    };
+
+    @Override
+    public ICopyEvaluatorFactory createEvaluatorFactory(final ICopyEvaluatorFactory[] args) throws AlgebricksException {
+        return new ICopyEvaluatorFactory() {
+
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public ICopyEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException {
+                return new ICopyEvaluator() {
+                    private DataOutput out = output.getDataOutput();
+                    private ArrayBackedValueStorage argOut = new ArrayBackedValueStorage();
+                    private ICopyEvaluator eval = args[0].createEvaluator(argOut);
+
+                    private AMutableDouble aDouble = new AMutableDouble(0);
+                    @SuppressWarnings("unchecked")
+                    private ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
+                            .getSerializerDeserializer(BuiltinType.ADOUBLE);
+
+                    @Override
+                    public void evaluate(IFrameTupleReference tuple) throws AlgebricksException {
+                        argOut.reset();
+                        eval.evaluate(tuple);
+                        byte[] bytes = argOut.getByteArray();
+
+                        try {
+                            double y;
+                            if (bytes[0] == SER_POINT_TAG) {
+                                y = ADoubleSerializerDeserializer.getDouble(bytes,
+                                        APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y));
+                            } else {
+                                throw new AlgebricksException("get-y does not support the type: " + bytes[0]
+                                        + " It is only implemented for POINT.");
+                            }
+
+                            aDouble.setValue(y);
+                            doubleSerde.serialize(aDouble, out);
+
+                        } catch (IOException e) {
+                            throw new AlgebricksException(e);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
+    @Override
+    public FunctionIdentifier getIdentifier() {
+        return FID;
+    }
+
+}
\ No newline at end of file
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
index c2d6c50..4665631 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/formats/NonTaggedDataFormat.java
@@ -65,6 +65,11 @@
 import edu.uci.ics.asterix.runtime.aggregates.std.SumAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.stream.EmptyStreamAggregateDescriptor;
 import edu.uci.ics.asterix.runtime.aggregates.stream.NonEmptyStreamAggregateDescriptor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.CircleCenterAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.CircleRadiusAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.LineRectanglePolygonAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.PointXCoordinateAccessor;
+import edu.uci.ics.asterix.runtime.evaluators.accessors.PointYCoordinateAccessor;
 import edu.uci.ics.asterix.runtime.evaluators.common.CreateMBREvalFactory;
 import edu.uci.ics.asterix.runtime.evaluators.common.FieldAccessByIndexEvalFactory;
 import edu.uci.ics.asterix.runtime.evaluators.common.FunctionManagerImpl;
@@ -280,7 +285,7 @@
         temp.add(NonEmptyStreamAggregateDescriptor.FACTORY);
         temp.add(RangeDescriptor.FACTORY);
 
-// Xiaoyu Ma add for numeric unary functions
+        // Xiaoyu Ma add for numeric unary functions
         temp.add(NumericAbsDescriptor.FACTORY);
         temp.add(NumericCeilingDescriptor.FACTORY);
         temp.add(NumericFloorDescriptor.FACTORY);
@@ -289,21 +294,21 @@
         temp.add(NumericRoundHalfToEven2Descriptor.FACTORY);
         // String functions
         temp.add(StringEqualDescriptor.FACTORY);
-        temp.add(StringStartWithDescrtiptor.FACTORY);    
-        temp.add(StringEndWithDescrtiptor.FACTORY);       
-        temp.add(StringMatchesDescriptor.FACTORY);    
-        temp.add(StringLowerCaseDescriptor.FACTORY);   
+        temp.add(StringStartWithDescrtiptor.FACTORY);
+        temp.add(StringEndWithDescrtiptor.FACTORY);
+        temp.add(StringMatchesDescriptor.FACTORY);
+        temp.add(StringLowerCaseDescriptor.FACTORY);
         temp.add(StringMatchesWithFlagDescriptor.FACTORY);
-        temp.add(StringReplaceDescriptor.FACTORY);      
-        temp.add(StringReplaceWithFlagsDescriptor.FACTORY);    
-        temp.add(StringLengthDescriptor.FACTORY);        
-        temp.add(Substring2Descriptor.FACTORY);    
-        temp.add(SubstringBeforeDescriptor.FACTORY); 
-        temp.add(SubstringAfterDescriptor.FACTORY); 
-        temp.add(StringToCodePointDescriptor.FACTORY);         
-        temp.add(CodePointToStringDescriptor.FACTORY); 
-        temp.add(StringConcatDescriptor.FACTORY);         
-        temp.add(StringJoinDescriptor.FACTORY);      
+        temp.add(StringReplaceDescriptor.FACTORY);
+        temp.add(StringReplaceWithFlagsDescriptor.FACTORY);
+        temp.add(StringLengthDescriptor.FACTORY);
+        temp.add(Substring2Descriptor.FACTORY);
+        temp.add(SubstringBeforeDescriptor.FACTORY);
+        temp.add(SubstringAfterDescriptor.FACTORY);
+        temp.add(StringToCodePointDescriptor.FACTORY);
+        temp.add(CodePointToStringDescriptor.FACTORY);
+        temp.add(StringConcatDescriptor.FACTORY);
+        temp.add(StringJoinDescriptor.FACTORY);
 
         // aggregates
         temp.add(ListifyAggregateDescriptor.FACTORY);
@@ -332,7 +337,7 @@
         temp.add(ScalarSumAggregateDescriptor.FACTORY);
         temp.add(ScalarMaxAggregateDescriptor.FACTORY);
         temp.add(ScalarMinAggregateDescriptor.FACTORY);
-        
+
         // new functions - constructors
         temp.add(ABooleanConstructorDescriptor.FACTORY);
         temp.add(ANullConstructorDescriptor.FACTORY);
@@ -365,6 +370,11 @@
         temp.add(SpatialIntersectDescriptor.FACTORY);
         temp.add(CreateMBRDescriptor.FACTORY);
         temp.add(SpatialCellDescriptor.FACTORY);
+        temp.add(PointXCoordinateAccessor.FACTORY);
+        temp.add(PointYCoordinateAccessor.FACTORY);
+        temp.add(CircleRadiusAccessor.FACTORY);
+        temp.add(CircleCenterAccessor.FACTORY);
+        temp.add(LineRectanglePolygonAccessor.FACTORY);
 
         // fuzzyjoin function
         temp.add(FuzzyEqDescriptor.FACTORY);
@@ -541,7 +551,7 @@
         typeInference(expr, fd, context);
         return fd;
     }
-    
+
     private void typeInference(ILogicalExpression expr, IFunctionDescriptor fd, IVariableTypeEnvironment context)
             throws AlgebricksException {
         if (fd.getIdentifier().equals(AsterixBuiltinFunctions.LISTIFY)) {
@@ -552,7 +562,7 @@
                 IAType itemType = (IAType) context.getType(f.getArguments().get(0).getValue());
                 // Convert UNION types into ANY.
                 if (itemType instanceof AUnionType) {
-                    itemType = BuiltinType.ANY; 
+                    itemType = BuiltinType.ANY;
                 }
                 ((ListifyAggregateDescriptor) fd).reset(new AOrderedListType(itemType, null));
             }