com.hazelcast.jet.sql.impl.opt.logical.CalcLogicalRule 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 2024 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.jet.sql.impl.opt.OptUtils;
import com.hazelcast.shaded.org.apache.calcite.plan.Convention;
import com.hazelcast.shaded.org.apache.calcite.plan.RelOptRule;
import com.hazelcast.shaded.org.apache.calcite.rel.RelNode;
import com.hazelcast.shaded.org.apache.calcite.rel.convert.ConverterRule;
import com.hazelcast.shaded.org.apache.calcite.rel.logical.LogicalCalc;

import javax.annotation.Nonnull;

import static com.hazelcast.jet.sql.impl.opt.Conventions.LOGICAL;

public final class CalcLogicalRule extends ConverterRule {
    static final RelOptRule INSTANCE = new CalcLogicalRule();

    private CalcLogicalRule() {
        super(
                LogicalCalc.class, Convention.NONE, LOGICAL,
                CalcLogicalRule.class.getSimpleName()
        );
    }

    @Nonnull
    @Override
    public RelNode convert(RelNode rel) {
        LogicalCalc calc = (LogicalCalc) rel;
        return new CalcLogicalRel(
                calc.getCluster(),
                OptUtils.toLogicalConvention(calc.getTraitSet()),
                calc.getHints(),
                OptUtils.toLogicalInput(calc.getInput()),
                calc.getProgram()
        );
    }
}