Package org.apache.flink.table.planner.plan.rules.logical

Class AggregateReduceGroupingRule

java.lang.Object
org.apache.calcite.plan.RelOptRule
org.apache.calcite.plan.RelRule<AggregateReduceGroupingRule.AggregateReduceGroupingRuleConfig>
org.apache.flink.table.planner.plan.rules.logical.AggregateReduceGroupingRule
@Enclosing public class AggregateReduceGroupingRule extends org.apache.calcite.plan.RelRule<AggregateReduceGroupingRule.AggregateReduceGroupingRuleConfig>
Planner rule that reduces unless grouping columns.

Find (minimum) unique group for the grouping columns, and use it as new grouping columns.

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static interface 
    AggregateReduceGroupingRule.AggregateReduceGroupingRuleConfig
    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 AggregateReduceGroupingRule
    INSTANCE
     

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

    config

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

    description, operands, relBuilderFactory

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    AggregateReduceGroupingRule(AggregateReduceGroupingRule.AggregateReduceGroupingRuleConfig config)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    matches(org.apache.calcite.plan.RelOptRuleCall call)
     
    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

  • Constructor Details

  • Method Details

    • matches

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

    • onMatch

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