com.hazelcast.jet.sql.impl.opt.physical.UnionPhysicalRel Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of hazelcast-sql Show documentation

SQL Parser and Optimizer

There is a newer version: 5.5.0

/*
 * Copyright 2021 Hazelcast Inc.
 *
 * Licensed under the Hazelcast Community License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://hazelcast.com/hazelcast-community-license
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hazelcast.jet.sql.impl.opt.physical;

import com.hazelcast.jet.core.Vertex;
import com.hazelcast.sql.impl.QueryParameterMetadata;
import com.hazelcast.sql.impl.plan.node.PlanNodeSchema;
import com.hazelcast.org.apache.calcite.plan.RelOptCluster;
import com.hazelcast.org.apache.calcite.plan.RelTraitSet;
import com.hazelcast.org.apache.calcite.rel.RelNode;
import com.hazelcast.org.apache.calcite.rel.core.SetOp;
import com.hazelcast.org.apache.calcite.rel.core.Union;

import java.util.List;

public class UnionPhysicalRel extends Union implements PhysicalRel {

    UnionPhysicalRel(
            RelOptCluster cluster,
            RelTraitSet traitSet,
            List inputs,
            boolean all
    ) {
        super(cluster, traitSet, inputs, all);
    }

    @Override
    public PlanNodeSchema schema(QueryParameterMetadata parameterMetadata) {
        return ((PhysicalRel) inputs.get(0)).schema(parameterMetadata);
    }

    @Override
    public Vertex accept(CreateDagVisitor visitor) {
        return visitor.onUnion(this);
    }

    @Override
    public SetOp copy(RelTraitSet traitSet, List inputs, boolean all) {
        return new UnionPhysicalRel(getCluster(), traitSet, inputs, all);
    }
}