com.hazelcast.jet.sql.impl.opt.logical.AggregateLogicalRel 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.RelTraitSet;
import com.hazelcast.org.apache.calcite.rel.RelNode;
import com.hazelcast.org.apache.calcite.rel.core.Aggregate;
import com.hazelcast.org.apache.calcite.rel.core.AggregateCall;
import com.hazelcast.org.apache.calcite.util.ImmutableBitSet;

import java.util.ArrayList;
import java.util.List;

public class AggregateLogicalRel extends Aggregate implements LogicalRel {

    AggregateLogicalRel(
            RelOptCluster cluster,
            RelTraitSet traits,
            RelNode child,
            ImmutableBitSet groupSet,
            List groupSets,
            List aggCalls
    ) {
        super(cluster, traits, new ArrayList<>(), child, groupSet, groupSets, aggCalls);
    }

    @Override
    public final Aggregate copy(
            RelTraitSet traitSet,
            RelNode input,
            ImmutableBitSet groupSet,
            List groupSets,
            List aggregateCalls
    ) {
        return new AggregateLogicalRel(getCluster(), traitSet, input, groupSet, groupSets, aggregateCalls);
    }

    public final boolean hasCollation() {
        return getAggCallList().stream().anyMatch(agg -> agg.getCollation().getFieldCollations().size() > 0);
    }
}