| /* |
| * 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.physical; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| import org.apache.drill.exec.physical.base.PhysicalOperator; |
| import org.apache.drill.exec.physical.config.UnionAll; |
| import org.apache.drill.exec.planner.cost.DrillCostBase; |
| import org.apache.drill.exec.planner.cost.DrillCostBase.DrillCostFactory; |
| import org.apache.drill.exec.record.BatchSchema.SelectionVectorMode; |
| |
| import org.apache.calcite.rel.InvalidRelException; |
| import org.apache.calcite.rel.RelNode; |
| import org.apache.calcite.rel.metadata.RelMetadataQuery; |
| import org.apache.calcite.plan.RelOptCluster; |
| import org.apache.calcite.plan.RelOptCost; |
| import org.apache.calcite.plan.RelOptPlanner; |
| import org.apache.calcite.plan.RelTraitSet; |
| import org.apache.calcite.rel.core.Union; |
| |
| import com.google.common.collect.Lists; |
| |
| public class UnionAllPrel extends UnionPrel { |
| |
| public UnionAllPrel(RelOptCluster cluster, RelTraitSet traits, List<RelNode> inputs) |
| throws InvalidRelException { |
| super(cluster, traits, inputs, true /* all */); |
| |
| } |
| |
| |
| @Override |
| public Union copy(RelTraitSet traitSet, List<RelNode> inputs, boolean all) { |
| try { |
| return new UnionAllPrel(this.getCluster(), traitSet, inputs); |
| }catch (InvalidRelException e) { |
| throw new AssertionError(e); |
| } |
| } |
| |
| @Override |
| public RelOptCost computeSelfCost(RelOptPlanner planner, RelMetadataQuery mq) { |
| if(PrelUtil.getSettings(getCluster()).useDefaultCosting()) { |
| return super.computeSelfCost(planner, mq).multiplyBy(.1); |
| } |
| double totalInputRowCount = 0; |
| for (int i = 0; i < this.getInputs().size(); i++) { |
| totalInputRowCount += mq.getRowCount(this.getInputs().get(i)); |
| } |
| |
| double cpuCost = totalInputRowCount * DrillCostBase.BASE_CPU_COST; |
| DrillCostFactory costFactory = (DrillCostFactory)planner.getCostFactory(); |
| return costFactory.makeCost(totalInputRowCount, cpuCost, 0, 0); |
| } |
| |
| @Override |
| public PhysicalOperator getPhysicalOperator(PhysicalPlanCreator creator) throws IOException { |
| List<PhysicalOperator> inputPops = Lists.newArrayList(); |
| |
| for (int i = 0; i < this.getInputs().size(); i++) { |
| inputPops.add( ((Prel)this.getInputs().get(i)).getPhysicalOperator(creator)); |
| } |
| |
| UnionAll unionall = new UnionAll(inputPops); |
| return creator.addMetadata(this, unionall); |
| } |
| |
| @Override |
| public SelectionVectorMode[] getSupportedEncodings() { |
| return SelectionVectorMode.DEFAULT; |
| } |
| |
| @Override |
| public SelectionVectorMode getEncoding() { |
| return SelectionVectorMode.NONE; |
| } |
| |
| } |