blob: 10dc50a1a74a67bfff0ade8c18f464a16f614ea9 [file] [log] [blame]
/*
* 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.linq4j.Ord;
import org.apache.calcite.plan.RelOptCluster;
import org.apache.calcite.plan.RelTraitSet;
import org.apache.calcite.rel.InvalidRelException;
import org.apache.calcite.rel.RelNode;
import org.apache.calcite.rel.core.Intersect;
import org.apache.calcite.util.trace.CalciteTrace;
import org.apache.drill.common.logical.data.LogicalOperator;
import org.apache.drill.exec.planner.common.DrillSetOpRel;
import org.apache.drill.exec.planner.torel.ConversionContext;
import org.slf4j.Logger;
import java.util.List;
/**
* Intersect implemented in Drill.
*/
public class DrillIntersectRel extends Intersect implements DrillRel, DrillSetOpRel {
private static final Logger tracer = CalciteTrace.getPlannerTracer();
public DrillIntersectRel(RelOptCluster cluster, RelTraitSet traits,
List<RelNode> inputs, boolean all, boolean checkCompatibility) throws InvalidRelException {
super(cluster, traits, inputs, all);
if (checkCompatibility && !this.isCompatible(getRowType(), getInputs())) {
throw new InvalidRelException("Input row types of the Intersect are not compatible.");
}
}
public static DrillIntersectRel create(List<RelNode> inputs, boolean all) {
try {
return new DrillIntersectRel(inputs.get(0).getCluster(), inputs.get(0).getTraitSet(), inputs, all, true);
} catch (InvalidRelException e) {
tracer.warn(e.toString());
return null;
}
}
@Override
public DrillIntersectRel copy(RelTraitSet traitSet, List<RelNode> inputs,
boolean all) {
try {
return new DrillIntersectRel(getCluster(), traitSet, inputs, all,
false /* don't check compatibility during copy */);
} catch (InvalidRelException e) {
throw new AssertionError(e);
}
}
public static DrillIntersectRel convert(org.apache.drill.common.logical.data.Intersect intersect, ConversionContext context) throws InvalidRelException{
throw new UnsupportedOperationException();
}
@Override
public LogicalOperator implement(DrillImplementor implementor) {
org.apache.drill.common.logical.data.Intersect.Builder builder = org.apache.drill.common.logical.data.Intersect.builder();
for (Ord<RelNode> input : Ord.zip(inputs)) {
builder.addInput(implementor.visitChild(this, input.i, input.e));
}
builder.setDistinct(!all);
return builder.build();
}
}