JoinConditionExpandIsNotDistinctFromRule (Apache Calcite API)

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelRule<JoinConditionExpandIsNotDistinctFromRule.Config>

org.apache.calcite.rel.rules.JoinConditionExpandIsNotDistinctFromRule

All Implemented Interfaces:: TransformationRule

@Enclosing public final class JoinConditionExpandIsNotDistinctFromRule extends RelRule<JoinConditionExpandIsNotDistinctFromRule.Config> implements TransformationRule

Planner rule that replaces IS NOT DISTINCT FROM in a Join condition with logically equivalent operations.

See Also:

Nested Class Summary

Nested Classes

Modifier and Type

Class

Description

static interface

JoinConditionExpandIsNotDistinctFromRule.Config

Rule configuration.

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelRule
RelRule.Done, RelRule.MatchHandler<R extends RelOptRule>, RelRule.OperandBuilder, RelRule.OperandDetailBuilder<R extends RelNode>, RelRule.OperandTransform

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

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

void

onMatch(RelOptRuleCall call)

Receives notification about a rule match.

Methods inherited from class org.apache.calcite.plan.RelOptRule
any, convert, convert, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, matches, 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

Method Details
- onMatch
  
  public void onMatch(RelOptRuleCall call)
  
  Description copied from class: RelOptRule
  
  Receives notification about a rule match. At the time that this method is called, call.rels holds the set of relational expressions which match the operands to the rule; call.rels[0] is the root expression.
  Typically a rule would check that the nodes are valid matches, creates a new expression, then calls back RelOptRuleCall.transformTo(org.apache.calcite.rel.RelNode, java.util.Map<org.apache.calcite.rel.RelNode, org.apache.calcite.rel.RelNode>, org.apache.calcite.plan.RelHintsPropagator) to register the expression.
  Specified by:
  
  onMatch in class RelOptRule
  
  Parameters:
  
  call - Rule call
  
  See Also:
  
  RelOptRule.matches(RelOptRuleCall)