/*
 * Copyright 2019-2022 The Polypheny Project
 *
 * Licensed 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.polypheny.db.algebra.rules;

import org.polypheny.db.algebra.logical.document.LogicalDocumentAggregate;
import org.polypheny.db.algebra.logical.relational.LogicalAggregate;
import org.polypheny.db.plan.AlgOptRule;
import org.polypheny.db.plan.AlgOptRuleCall;

public class DocumentAggregateToAggregateRule extends AlgOptRule {

    public static final DocumentAggregateToAggregateRule INSTANCE = new DocumentAggregateToAggregateRule();


    public DocumentAggregateToAggregateRule() {
        super( operand( LogicalDocumentAggregate.class, any() ), "DOCUMENT_AGGREGATE_TO_AGGREGATE" );
    }


    @Override
    public void onMatch( AlgOptRuleCall call ) {
        LogicalDocumentAggregate alg = call.alg( 0 );

        call.transformTo( LogicalAggregate.create( alg.getInput(), alg.groupSet, alg.groupSets, alg.aggCalls ) );
    }

}
