/**
 * 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.phoenix.hive.objectinspector;

import java.math.BigDecimal;

import org.apache.hadoop.hive.common.type.HiveDecimal;
import org.apache.hadoop.hive.metastore.api.Decimal;
import org.apache.hadoop.hive.serde2.io.HiveDecimalWritable;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.HiveDecimalObjectInspector;
import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory;

/**
 * @author JeongMin Ju
 *
 */
public class PhoenixDecimalObjectInspector extends AbstractPhoenixObjectInspector<HiveDecimalWritable> implements HiveDecimalObjectInspector {

	public PhoenixDecimalObjectInspector() {
		super(TypeInfoFactory.decimalTypeInfo);
	}

	@Override
	public Object copyObject(Object o) {
		return o == null ? null : new Decimal((Decimal)o);
	}

	@Override
	public HiveDecimal getPrimitiveJavaObject(Object o) {
		return HiveDecimal.create((BigDecimal)o);
	}

	@Override
	public HiveDecimalWritable getPrimitiveWritableObject(Object o) {
		HiveDecimalWritable value = null;
		
		if (o != null) {
			try {
				value = new HiveDecimalWritable((HiveDecimalWritable)o);
			} catch (Exception e) {
				logExceptionMessage(o, "DECIMAL");
			}
		}
		
		return value;
		
//		return super.getPrimitiveWritableObject(o);
	}

}

/**
 * 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.phoenix.hive.objectinspector;

import java.math.BigDecimal;

import org.apache.hadoop.hive.common.type.HiveDecimal;
import org.apache.hadoop.hive.serde2.io.HiveDecimalWritable;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.HiveDecimalObjectInspector;
import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory;

/**
 * @author JeongMin Ju
 *
 */
public class PhoenixDecimalObjectInspector extends AbstractPhoenixObjectInspector<HiveDecimalWritable> implements HiveDecimalObjectInspector {

	public PhoenixDecimalObjectInspector() {
		super(TypeInfoFactory.decimalTypeInfo);
	}

	@Override
	public Object copyObject(Object o) {
//		return o == null ? null : new Decimal((Decimal)o);
		return o == null ? null : new BigDecimal(((BigDecimal)o).toBigInteger(), ((BigDecimal)o).scale());		// 2016-04-06 Modified by JeongMin Ju
	}

	@Override
	public HiveDecimal getPrimitiveJavaObject(Object o) {
		return HiveDecimal.create((BigDecimal)o);
	}

	@Override
	public HiveDecimalWritable getPrimitiveWritableObject(Object o) {
		HiveDecimalWritable value = null;
		
		if (o != null) {
			try {
				value = new HiveDecimalWritable((HiveDecimalWritable)o);
			} catch (Exception e) {
				logExceptionMessage(o, "DECIMAL");
			}
		}
		
		return value;
		
//		return super.getPrimitiveWritableObject(o);
	}

}

Change Decimal to BigDecimal