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[FLINK-35075][table] Migrate TwoStageOptimizedAggregateRule to java
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...apache/flink/table/planner/plan/rules/physical/stream/TwoStageOptimizedAggregateRule.java
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/* | ||
* Licensed to the Apache Software Foundation (ASF) under one | ||
* or more contributor license agreements. See the NOTICE file | ||
* distributed with this work for additional information | ||
* regarding copyright ownership. The ASF licenses this file | ||
* to you 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. | ||
*/ | ||
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package org.apache.flink.table.planner.plan.rules.physical.stream; | ||
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import org.apache.flink.table.api.TableConfig; | ||
import org.apache.flink.table.api.config.AggregatePhaseStrategy; | ||
import org.apache.flink.table.api.config.ExecutionConfigOptions; | ||
import org.apache.flink.table.planner.calcite.FlinkTypeFactory; | ||
import org.apache.flink.table.planner.plan.metadata.FlinkRelMetadataQuery; | ||
import org.apache.flink.table.planner.plan.nodes.FlinkConventions; | ||
import org.apache.flink.table.planner.plan.nodes.physical.stream.StreamPhysicalExchange; | ||
import org.apache.flink.table.planner.plan.nodes.physical.stream.StreamPhysicalGlobalGroupAggregate; | ||
import org.apache.flink.table.planner.plan.nodes.physical.stream.StreamPhysicalGroupAggregate; | ||
import org.apache.flink.table.planner.plan.nodes.physical.stream.StreamPhysicalLocalGroupAggregate; | ||
import org.apache.flink.table.planner.plan.nodes.physical.stream.StreamPhysicalRel; | ||
import org.apache.flink.table.planner.plan.rules.physical.FlinkExpandConversionRule; | ||
import org.apache.flink.table.planner.plan.trait.FlinkRelDistribution; | ||
import org.apache.flink.table.planner.plan.trait.FlinkRelDistributionTraitDef; | ||
import org.apache.flink.table.planner.plan.trait.ModifyKindSetTrait; | ||
import org.apache.flink.table.planner.plan.trait.RelModifiedMonotonicity; | ||
import org.apache.flink.table.planner.plan.trait.UpdateKindTrait; | ||
import org.apache.flink.table.planner.plan.utils.AggregateInfoList; | ||
import org.apache.flink.table.planner.plan.utils.AggregateUtil; | ||
import org.apache.flink.table.planner.plan.utils.ChangelogPlanUtils; | ||
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import org.apache.calcite.plan.RelOptRuleCall; | ||
import org.apache.calcite.plan.RelRule; | ||
import org.apache.calcite.plan.RelTraitSet; | ||
import org.apache.calcite.rel.RelDistribution; | ||
import org.apache.calcite.rel.RelNode; | ||
import org.immutables.value.Value; | ||
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import java.util.List; | ||
import java.util.stream.Collectors; | ||
import java.util.stream.IntStream; | ||
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import scala.Option; | ||
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import static org.apache.flink.table.planner.utils.ShortcutUtils.unwrapTableConfig; | ||
import static org.apache.flink.table.planner.utils.ShortcutUtils.unwrapTypeFactory; | ||
import static org.apache.flink.table.planner.utils.TableConfigUtils.getAggPhaseStrategy; | ||
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/** | ||
* Rule that matches {@link StreamPhysicalGroupAggregate} on {@link StreamPhysicalExchange} with the | ||
* following condition: 1. mini-batch is enabled in given TableConfig, 2. two-phase aggregation is | ||
* enabled in given TableConfig, 3. all aggregate functions are mergeable, 4. the input of exchange | ||
* does not satisfy the shuffle distribution, | ||
* | ||
* <p>and converts them to | ||
* | ||
* <pre> | ||
* StreamPhysicalGlobalGroupAggregate | ||
* +- StreamPhysicalExchange | ||
* +- StreamPhysicalLocalGroupAggregate | ||
* +- input of exchange | ||
* </pre> | ||
*/ | ||
@Value.Enclosing | ||
public class TwoStageOptimizedAggregateRule | ||
extends RelRule<TwoStageOptimizedAggregateRule.TwoStageOptimizedAggregateRuleConfig> { | ||
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public static final TwoStageOptimizedAggregateRule INSTANCE = | ||
TwoStageOptimizedAggregateRule.TwoStageOptimizedAggregateRuleConfig.DEFAULT.toRule(); | ||
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private TwoStageOptimizedAggregateRule(TwoStageOptimizedAggregateRuleConfig config) { | ||
super(config); | ||
} | ||
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@Override | ||
public boolean matches(RelOptRuleCall call) { | ||
TableConfig tableConfig = unwrapTableConfig(call); | ||
boolean isMiniBatchEnabled = | ||
tableConfig.get(ExecutionConfigOptions.TABLE_EXEC_MINIBATCH_ENABLED); | ||
boolean isTwoPhaseEnabled = | ||
getAggPhaseStrategy(tableConfig) != AggregatePhaseStrategy.ONE_PHASE; | ||
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return isMiniBatchEnabled && isTwoPhaseEnabled && matchesTwoStage(call.rel(0), call.rel(2)); | ||
} | ||
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public static boolean matchesTwoStage(StreamPhysicalGroupAggregate agg, RelNode realInput) { | ||
boolean needRetraction = !ChangelogPlanUtils.isInsertOnly((StreamPhysicalRel) realInput); | ||
FlinkRelMetadataQuery fmq = | ||
FlinkRelMetadataQuery.reuseOrCreate(agg.getCluster().getMetadataQuery()); | ||
RelModifiedMonotonicity monotonicity = fmq.getRelModifiedMonotonicity(agg); | ||
boolean[] needRetractionArray = | ||
AggregateUtil.deriveAggCallNeedRetractions( | ||
agg.grouping().length, agg.aggCalls(), needRetraction, monotonicity); | ||
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AggregateInfoList aggInfoList = | ||
AggregateUtil.transformToStreamAggregateInfoList( | ||
unwrapTypeFactory(agg), | ||
FlinkTypeFactory.toLogicalRowType(agg.getInput().getRowType()), | ||
agg.aggCalls(), | ||
needRetractionArray, | ||
needRetraction, | ||
true, | ||
true); | ||
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return AggregateUtil.doAllSupportPartialMerge(aggInfoList.aggInfos()) | ||
&& !isInputSatisfyRequiredDistribution(realInput, agg.grouping()); | ||
} | ||
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private static boolean isInputSatisfyRequiredDistribution(RelNode input, int[] keys) { | ||
RelDistribution requiredDistribution = createDistribution(keys); | ||
RelTraitSet traitSet = input.getTraitSet(); | ||
RelDistribution inputDistribution = | ||
traitSet.getTrait(FlinkRelDistributionTraitDef.INSTANCE()); | ||
return inputDistribution.satisfies(requiredDistribution); | ||
} | ||
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private static FlinkRelDistribution createDistribution(int[] keys) { | ||
if (keys.length > 0) { | ||
List<Integer> fields = IntStream.of(keys).boxed().collect(Collectors.toList()); | ||
return FlinkRelDistribution.hash(fields, true); | ||
} else { | ||
return FlinkRelDistribution.SINGLETON(); | ||
} | ||
} | ||
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@Override | ||
public void onMatch(RelOptRuleCall call) { | ||
StreamPhysicalGroupAggregate originalAgg = call.rel(0); | ||
RelNode realInput = call.rel(2); | ||
boolean needRetraction = !ChangelogPlanUtils.isInsertOnly((StreamPhysicalRel) realInput); | ||
FlinkRelMetadataQuery fmq = FlinkRelMetadataQuery.reuseOrCreate(call.getMetadataQuery()); | ||
RelModifiedMonotonicity monotonicity = fmq.getRelModifiedMonotonicity(originalAgg); | ||
boolean[] aggCallNeedRetractions = | ||
AggregateUtil.deriveAggCallNeedRetractions( | ||
originalAgg.grouping().length, | ||
originalAgg.aggCalls(), | ||
needRetraction, | ||
monotonicity); | ||
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// Set the traits for the local aggregation | ||
RelTraitSet localAggTraitSet = | ||
realInput | ||
.getTraitSet() | ||
.plus(ModifyKindSetTrait.INSERT_ONLY()) | ||
.plus(UpdateKindTrait.NONE()); | ||
StreamPhysicalLocalGroupAggregate localHashAgg = | ||
new StreamPhysicalLocalGroupAggregate( | ||
originalAgg.getCluster(), | ||
localAggTraitSet, | ||
realInput, | ||
originalAgg.grouping(), | ||
originalAgg.aggCalls(), | ||
aggCallNeedRetractions, | ||
needRetraction, | ||
originalAgg.partialFinalType()); | ||
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// Global grouping keys are forwarded by local agg, use identity keys | ||
int[] globalGrouping = | ||
java.util.stream.IntStream.range(0, originalAgg.grouping().length).toArray(); | ||
FlinkRelDistribution globalDistribution = createDistribution(globalGrouping); | ||
// create exchange if needed | ||
RelNode newInput = | ||
FlinkExpandConversionRule.satisfyDistribution( | ||
FlinkConventions.STREAM_PHYSICAL(), localHashAgg, globalDistribution); | ||
RelTraitSet globalAggProvidedTraitSet = originalAgg.getTraitSet(); | ||
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StreamPhysicalGlobalGroupAggregate globalAgg = | ||
new StreamPhysicalGlobalGroupAggregate( | ||
originalAgg.getCluster(), | ||
globalAggProvidedTraitSet, | ||
newInput, | ||
originalAgg.getRowType(), | ||
globalGrouping, | ||
originalAgg.aggCalls(), | ||
aggCallNeedRetractions, | ||
realInput.getRowType(), | ||
needRetraction, | ||
originalAgg.partialFinalType(), | ||
Option.empty(), | ||
originalAgg.hints()); | ||
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call.transformTo(globalAgg); | ||
} | ||
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/** Rule configuration. */ | ||
@Value.Immutable(singleton = false) | ||
public interface TwoStageOptimizedAggregateRuleConfig extends RelRule.Config { | ||
TwoStageOptimizedAggregateRule.TwoStageOptimizedAggregateRuleConfig DEFAULT = | ||
ImmutableTwoStageOptimizedAggregateRule.TwoStageOptimizedAggregateRuleConfig | ||
.builder() | ||
.build() | ||
.withOperandSupplier( | ||
b0 -> | ||
b0.operand(StreamPhysicalGroupAggregate.class) | ||
.oneInput( | ||
b1 -> | ||
b1.operand( | ||
StreamPhysicalExchange | ||
.class) | ||
.oneInput( | ||
b2 -> | ||
b2.operand( | ||
RelNode | ||
.class) | ||
.anyInputs()))) | ||
.withDescription("TwoStageOptimizedAggregateRule"); | ||
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@Override | ||
default TwoStageOptimizedAggregateRule toRule() { | ||
return new TwoStageOptimizedAggregateRule(this); | ||
} | ||
} | ||
} |
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...pache/flink/table/planner/plan/rules/physical/stream/TwoStageOptimizedAggregateRule.scala
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