com.hazelcast.jet.sql.impl.opt.physical.StreamingSortMustNotExecuteRule 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.physical;
import com.hazelcast.jet.sql.impl.opt.OptUtils;
import com.hazelcast.org.apache.calcite.plan.RelOptRule;
import com.hazelcast.org.apache.calcite.plan.RelOptRuleCall;
import com.hazelcast.org.apache.calcite.plan.RelRule;
import com.hazelcast.org.apache.calcite.plan.RelRule.Config;
import com.hazelcast.org.apache.calcite.rel.core.Sort;
import com.hazelcast.org.apache.calcite.rel.rules.TransformationRule;
import org.immutables.value.Value;
/**
* A rule that replaces any streaming sort attempt with {@link MustNotExecutePhysicalRel}.
*/
@Value.Enclosing
public final class StreamingSortMustNotExecuteRule extends RelRule implements TransformationRule {
@Value.Immutable
public interface Config extends RelRule.Config {
Config DEFAULT = ImmutableStreamingSortMustNotExecuteRule.Config.builder()
.description(StreamingSortMustNotExecuteRule.class.getSimpleName())
.operandSupplier(b0 -> b0.operand(SortPhysicalRel.class)
.predicate(OptUtils::isUnbounded)
.anyInputs()
)
.build();
@Override
default RelOptRule toRule() {
return new StreamingSortMustNotExecuteRule(this);
}
}
private StreamingSortMustNotExecuteRule(Config config) {
super(config);
}
@SuppressWarnings("checkstyle:DeclarationOrder")
public static final RelOptRule INSTANCE = new StreamingSortMustNotExecuteRule(Config.DEFAULT);
@Override
public void onMatch(RelOptRuleCall call) {
Sort sort = call.rel(0);
if (sort.fetch == null) {
call.transformTo(
new MustNotExecutePhysicalRel(sort.getCluster(), sort.getTraitSet(), sort.getRowType(),
"Sorting is not supported for a streaming query"));
}
}
}