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| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | + * or more contributor license agreements. See the NOTICE file |
| 4 | + * distributed with this work for additional information |
| 5 | + * regarding copyright ownership. The ASF licenses this file |
| 6 | + * to you under the Apache License, Version 2.0 (the |
| 7 | + * "License"); you may not use this file except in compliance |
| 8 | + * with the License. You may obtain a copy of the License at |
| 9 | + * |
| 10 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | + * |
| 12 | + * Unless required by applicable law or agreed to in writing, software |
| 13 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | + * See the License for the specific language governing permissions and |
| 16 | + * limitations under the License. |
| 17 | + */ |
| 18 | +package org.apache.drill.exec.planner.logical; |
| 19 | + |
| 20 | +import org.apache.calcite.plan.RelOptRuleCall; |
| 21 | +import org.apache.calcite.rel.core.Join; |
| 22 | +import org.apache.calcite.rel.core.JoinRelType; |
| 23 | +import org.apache.calcite.rel.rules.JoinPushTransitivePredicatesRule; |
| 24 | +import org.apache.drill.exec.planner.DrillRelBuilder; |
| 25 | + |
| 26 | +/** |
| 27 | + * Drill-specific version of JoinPushTransitivePredicatesRule that excludes SEMI joins. |
| 28 | + * SEMI joins are used for IN clause conversion and pushing predicates through them |
| 29 | + * can interfere with partition pruning logic. |
| 30 | + */ |
| 31 | +public class DrillJoinPushTransitivePredicatesRule extends JoinPushTransitivePredicatesRule { |
| 32 | + |
| 33 | + protected DrillJoinPushTransitivePredicatesRule(Config config) { |
| 34 | + super(config); |
| 35 | + } |
| 36 | + |
| 37 | + @Override |
| 38 | + public boolean matches(RelOptRuleCall call) { |
| 39 | + Join join = call.rel(0); |
| 40 | + // Don't apply this rule to SEMI joins to preserve partition pruning behavior |
| 41 | + if (join.getJoinType() == JoinRelType.SEMI) { |
| 42 | + return false; |
| 43 | + } |
| 44 | + return super.matches(call); |
| 45 | + } |
| 46 | + |
| 47 | + public static final DrillJoinPushTransitivePredicatesRule INSTANCE = |
| 48 | + new DrillJoinPushTransitivePredicatesRule( |
| 49 | + JoinPushTransitivePredicatesRule.Config.DEFAULT |
| 50 | + .withRelBuilderFactory(DrillRelBuilder.proto( |
| 51 | + DrillRelFactories.DRILL_LOGICAL_JOIN_FACTORY, |
| 52 | + DrillRelFactories.DRILL_LOGICAL_FILTER_FACTORY)) |
| 53 | + .as(JoinPushTransitivePredicatesRule.Config.class)); |
| 54 | +} |
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