Package org.apache.flink.table.planner.plan.rules.physical.stream

Class TwoStageOptimizedAggregateRule

java.lang.Object
org.apache.calcite.plan.RelOptRule
org.apache.calcite.plan.RelRule<TwoStageOptimizedAggregateRule.TwoStageOptimizedAggregateRuleConfig>
org.apache.flink.table.planner.plan.rules.physical.stream.TwoStageOptimizedAggregateRule
@Enclosing public class TwoStageOptimizedAggregateRule extends org.apache.calcite.plan.RelRule<TwoStageOptimizedAggregateRule.TwoStageOptimizedAggregateRuleConfig>
Rule that matches StreamPhysicalGroupAggregate on 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,

and converts them to 

   StreamPhysicalGlobalGroupAggregate
   +- StreamPhysicalExchange
      +- StreamPhysicalLocalGroupAggregate
         +- input of exchange

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static interface 
    TwoStageOptimizedAggregateRule.TwoStageOptimizedAggregateRuleConfig
    Rule configuration.

    Nested classes/interfaces inherited from class org.apache.calcite.plan.RelRule

    org.apache.calcite.plan.RelRule.Config, org.apache.calcite.plan.RelRule.Done, org.apache.calcite.plan.RelRule.MatchHandler<R extends org.apache.calcite.plan.RelOptRule>, org.apache.calcite.plan.RelRule.OperandBuilder, org.apache.calcite.plan.RelRule.OperandDetailBuilder<R extends org.apache.calcite.rel.RelNode>, org.apache.calcite.plan.RelRule.OperandTransform

    Nested classes/interfaces inherited from class org.apache.calcite.plan.RelOptRule

    org.apache.calcite.plan.RelOptRule.ConverterRelOptRuleOperand

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final TwoStageOptimizedAggregateRule
    INSTANCE
     

    Fields inherited from class org.apache.calcite.plan.RelRule

    config

    Fields inherited from class org.apache.calcite.plan.RelOptRule

    description, operands, relBuilderFactory

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    matches(org.apache.calcite.plan.RelOptRuleCall call)
     
    static boolean
    matchesTwoStage(StreamPhysicalGroupAggregate agg, org.apache.calcite.rel.RelNode realInput)
     
    void
    onMatch(org.apache.calcite.plan.RelOptRuleCall call)
     

    Methods inherited from class org.apache.calcite.plan.RelOptRule

    any, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, none, operand, operand, operand, operand, operand, operandJ, operandJ, some, toString, unordered

    Methods inherited from class java.lang.Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

  • Field Details

  • Method Details

    • matches

      public boolean matches(org.apache.calcite.plan.RelOptRuleCall call)
      Overrides:
      matches in class org.apache.calcite.plan.RelOptRule

    • matchesTwoStage

      public static boolean matchesTwoStage(StreamPhysicalGroupAggregate agg, org.apache.calcite.rel.RelNode realInput)

    • onMatch

      public void onMatch(org.apache.calcite.plan.RelOptRuleCall call)
      Specified by:
      onMatch in class org.apache.calcite.plan.RelOptRule