com.hazelcast.jet.sql.impl.opt.logical.InsertMapLogicalRule Maven / Gradle / Ivy
/*
* 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.jet.sql.impl.opt.OptUtils;
import com.hazelcast.sql.impl.schema.map.PartitionedMapTable;
import com.hazelcast.org.apache.calcite.plan.RelOptRule;
import com.hazelcast.org.apache.calcite.plan.RelOptRuleCall;
import static com.hazelcast.jet.sql.impl.opt.Conventions.LOGICAL;
/**
* Planner rule that matches single row, VALUES-based {@link PartitionedMapTable}
* INSERT.
* For example,
* INSERT INTO map VALUES (1, '1')
*
* Such INSERT is translated to optimized, direct key {@code IMap} operation
* which does not involve starting any job.
*/
public final class InsertMapLogicalRule extends RelOptRule {
static final RelOptRule INSTANCE = new InsertMapLogicalRule();
private InsertMapLogicalRule() {
super(
operandJ(
InsertLogicalRel.class, LOGICAL, insert -> !OptUtils.requiresJob(insert)
&& OptUtils.hasTableType(insert, PartitionedMapTable.class),
operand(ValuesLogicalRel.class, none())
),
InsertMapLogicalRule.class.getSimpleName()
);
}
@Override
public void onMatch(RelOptRuleCall call) {
InsertLogicalRel logicalInsert = call.rel(0);
ValuesLogicalRel logicalValues = call.rel(1);
if (logicalValues.size() == 1) {
InsertMapLogicalRel rel = new InsertMapLogicalRel(
logicalInsert.getCluster(),
OptUtils.toLogicalConvention(logicalInsert.getTraitSet()),
logicalInsert.getTable(),
logicalValues.values().get(0)
);
call.transformTo(rel);
}
}
}