/**
* 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.rules;
import org.apache.calcite.plan.RelOptRuleCall;
import org.apache.calcite.rel.core.Filter;
import org.apache.calcite.rel.rules.FilterSetOpTransposeRule;
import org.apache.calcite.rex.RexNode;
import org.apache.calcite.tools.RelBuilderFactory;
import org.apache.hadoop.hive.ql.optimizer.calcite.HiveCalciteUtil;
import org.apache.hadoop.hive.ql.optimizer.calcite.HiveRelFactories;
public class HiveFilterSetOpTransposeRule extends FilterSetOpTransposeRule {
public static final HiveFilterSetOpTransposeRule INSTANCE =
new HiveFilterSetOpTransposeRule(HiveRelFactories.HIVE_BUILDER);
/**
* Creates a HiveFilterSetOpTransposeRule.
*/
private HiveFilterSetOpTransposeRule(RelBuilderFactory relBuilderFactory) {
super(relBuilderFactory);
}
@Override
public boolean matches(RelOptRuleCall call) {
Filter filterRel = call.rel(0);
RexNode condition = filterRel.getCondition();
if (!HiveCalciteUtil.isDeterministic(condition)) {
return false;
}
return super.matches(call);
}
}