amansinha100 commented on a change in pull request #1514: DRILL-6798: Planner changes to support semi-join. URL: https://github.com/apache/drill/pull/1514#discussion_r229398184
########## File path: exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillSemiJoinRel.java ########## @@ -0,0 +1,100 @@ +/* + * 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.drill.exec.planner.logical; + +import org.apache.calcite.plan.RelOptCluster; +import org.apache.calcite.plan.RelTraitSet; +import org.apache.calcite.rel.RelNode; +import org.apache.calcite.rel.core.JoinInfo; +import org.apache.calcite.rel.core.JoinRelType; +import org.apache.calcite.rel.core.SemiJoin; +import org.apache.calcite.rex.RexNode; +import org.apache.calcite.util.ImmutableIntList; +import org.apache.calcite.util.Pair; +import org.apache.drill.common.expression.FieldReference; +import org.apache.drill.common.logical.data.Join; +import org.apache.drill.common.logical.data.JoinCondition; +import org.apache.drill.common.logical.data.LogicalOperator; +import org.apache.drill.common.logical.data.LogicalSemiJoin; +import org.apache.drill.shaded.guava.com.google.common.collect.Lists; + +import java.util.ArrayList; +import java.util.List; + +public class DrillSemiJoinRel extends SemiJoin implements DrillJoin, DrillRel { + + public DrillSemiJoinRel( + RelOptCluster cluster, + RelTraitSet traitSet, + RelNode left, + RelNode right, + RexNode condition, + ImmutableIntList leftKeys, + ImmutableIntList rightKeys) { + super(cluster, + traitSet, + left, + right, + condition, + leftKeys, + rightKeys); + } + + public static SemiJoin create(RelNode left, RelNode right, RexNode condition, + ImmutableIntList leftKeys, ImmutableIntList rightKeys) { + final RelOptCluster cluster = left.getCluster(); + return new DrillSemiJoinRel(cluster, cluster.traitSetOf(DrillRel.DRILL_LOGICAL), left, + right, condition, leftKeys, rightKeys); + } + + @Override + public SemiJoin copy(RelTraitSet traitSet, RexNode condition, + RelNode left, RelNode right, JoinRelType joinType, boolean semiJoinDone) { + assert joinType == JoinRelType.INNER; + final JoinInfo joinInfo = JoinInfo.of(left, right, condition); + assert joinInfo.isEqui(); Review comment: Asserts are only enabled in debug builds..best to use `Preconditions` checks. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
