org.apache.hadoop.hive.ql.optimizer.calcite.reloperators.HiveToDateSqlOperator Maven / Gradle / Ivy
/*
* 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.hadoop.hive.ql.optimizer.calcite.reloperators;
import org.apache.calcite.sql.SqlKind;
import org.apache.calcite.sql.SqlSpecialOperator;
import org.apache.calcite.sql.type.ReturnTypes;
/**
* Class used to map TO_DATE Hive UDF to Calcite planer in order to enable push down optimizations
*
*/
public class HiveToDateSqlOperator extends SqlSpecialOperator {
public static final HiveToDateSqlOperator INSTANCE = new HiveToDateSqlOperator();
private HiveToDateSqlOperator() {
super("TO_DATE", SqlKind.OTHER_FUNCTION, 30, true, ReturnTypes.DATE,
null, null);
}
}