| // 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.doris.nereids.rules.exploration.mv; |
| |
| import org.apache.doris.nereids.rules.Rule; |
| import org.apache.doris.nereids.rules.RuleType; |
| import org.apache.doris.nereids.trees.plans.Plan; |
| import org.apache.doris.nereids.trees.plans.logical.LogicalJoin; |
| import org.apache.doris.nereids.trees.plans.logical.LogicalPlan; |
| import org.apache.doris.nereids.trees.plans.logical.LogicalProject; |
| |
| import com.google.common.collect.ImmutableList; |
| |
| import java.util.List; |
| |
| /** |
| * This is responsible for join pattern such as project on join |
| * */ |
| public class MaterializedViewProjectJoinRule extends AbstractMaterializedViewJoinRule { |
| |
| public static final MaterializedViewProjectJoinRule INSTANCE = new MaterializedViewProjectJoinRule(); |
| |
| @Override |
| public List<Rule> buildRules() { |
| return ImmutableList.of( |
| logicalProject(logicalJoin(any().when(LogicalPlan.class::isInstance), |
| any().when(LogicalPlan.class::isInstance))).thenApplyMultiNoThrow(ctx -> { |
| LogicalProject<LogicalJoin<Plan, Plan>> root = ctx.root; |
| return rewrite(root, ctx.cascadesContext); |
| }).toRule(RuleType.MATERIALIZED_VIEW_PROJECT_JOIN)); |
| } |
| } |