com.hazelcast.jet.sql.impl.opt.logical.DeleteLogicalRel 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.logical;

import com.hazelcast.org.apache.calcite.plan.RelOptCluster;
import com.hazelcast.org.apache.calcite.plan.RelOptCost;
import com.hazelcast.org.apache.calcite.plan.RelOptPlanner;
import com.hazelcast.org.apache.calcite.plan.RelOptTable;
import com.hazelcast.org.apache.calcite.plan.RelTraitSet;
import com.hazelcast.org.apache.calcite.prepare.Prepare;
import com.hazelcast.org.apache.calcite.rel.RelNode;
import com.hazelcast.org.apache.calcite.rel.core.TableModify;
import com.hazelcast.org.apache.calcite.rel.metadata.RelMetadataQuery;

import java.util.List;

import static com.hazelcast.org.apache.calcite.rel.core.TableModify.Operation.DELETE;

public class DeleteLogicalRel extends TableModify implements LogicalRel {

    protected DeleteLogicalRel(
            RelOptCluster cluster,
            RelTraitSet traitSet,
            RelOptTable table,
            Prepare.CatalogReader catalogReader,
            RelNode input,
            boolean flattened
    ) {
        super(cluster, traitSet, table, catalogReader, input, DELETE, null, null, flattened);
    }

    @Override
    public RelOptCost computeSelfCost(RelOptPlanner planner, RelMetadataQuery mq) {
        return planner.getCostFactory().makeTinyCost();
    }

    @Override
    public RelNode copy(RelTraitSet traitSet, List inputs) {
        return new DeleteLogicalRel(getCluster(), traitSet, getTable(), getCatalogReader(), sole(inputs), isFlattened());
    }
}