org.apache.hadoop.hive.ql.optimizer.calcite.rules.HiveFilterProjectTransposeRule Maven / Gradle / Ivy
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* 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
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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.core.Project;
import org.apache.calcite.rel.core.RelFactories.FilterFactory;
import org.apache.calcite.rel.core.RelFactories.ProjectFactory;
import org.apache.calcite.rel.rules.FilterProjectTransposeRule;
import org.apache.calcite.rex.RexNode;
import org.apache.hadoop.hive.ql.optimizer.calcite.HiveCalciteUtil;
public class HiveFilterProjectTransposeRule extends FilterProjectTransposeRule {
public HiveFilterProjectTransposeRule(Class filterClass,
FilterFactory filterFactory, Class projectClass,
ProjectFactory projectFactory) {
super(filterClass, filterFactory, projectClass, projectFactory);
}
@Override
public boolean matches(RelOptRuleCall call) {
final Filter filterRel = call.rel(0);
RexNode condition = filterRel.getCondition();
if (!HiveCalciteUtil.isDeterministic(condition)) {
return false;
}
return super.matches(call);
}
}