hazelcast-master/hazelcast-sql/src/main/java/com/hazelcast/jet/sql/impl/opt/logical/TableModifyLogicalRel.java
/*
 * Copyright 2023 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.Conventions;
import org.apache.calcite.plan.RelOptCluster;
import org.apache.calcite.plan.RelOptCost;
import org.apache.calcite.plan.RelOptPlanner;
import org.apache.calcite.plan.RelOptTable;
import org.apache.calcite.plan.RelTraitSet;
import org.apache.calcite.prepare.Prepare.CatalogReader;
import org.apache.calcite.rel.RelNode;
import org.apache.calcite.rel.core.TableModify;
import org.apache.calcite.rel.metadata.RelMetadataQuery;
import org.apache.calcite.rex.RexNode;
import org.checkerframework.checker.nullness.qual.Nullable;

import java.util.List;

/**
 * Intermediate rel node during the logical phase that has inputs converted to
 * {@link Conventions#LOGICAL} so that other rules can match the
 * table-modify-rel and its inputs.
 */
public class TableModifyLogicalRel extends TableModify implements LogicalRel {
    protected TableModifyLogicalRel(
            RelOptCluster cluster,
            RelTraitSet traitSet,
            RelOptTable table,
            CatalogReader catalogReader,
            RelNode input,
            Operation operation,
            @Nullable List<String> updateColumnList,
            @Nullable List<RexNode> sourceExpressionList,
            boolean flattened) {
        super(cluster, traitSet, table, catalogReader, input, operation, updateColumnList, sourceExpressionList, flattened);
    }

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

    @Override
    public RelNode copy(RelTraitSet traitSet, List<RelNode> inputs) {
        return new TableModifyLogicalRel(
                getCluster(),
                traitSet,
                getTable(),
                getCatalogReader(),
                sole(inputs),
                getOperation(),
                getUpdateColumnList(),
                getSourceExpressionList(),
                isFlattened()
        );
    }
}
