Package org.apache.calcite.rel.rules

Class JoinPushTransitivePredicatesRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

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

org.apache.calcite.rel.rules.JoinPushTransitivePredicatesRule

All Implemented Interfaces:

TransformationRule

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

Planner rule that infers predicates from on a Join and creates Filters if those predicates can be pushed to its inputs.

Uses RelMdPredicates to infer the predicates, returns them in a RelOptPredicateList and applies them appropriately.

See Also:

• CoreRules.JOIN_PUSH_TRANSITIVE_PREDICATES

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	JoinPushTransitivePredicatesRule.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

Constructor Summary

Constructors

Modifier	Constructor	Description
	JoinPushTransitivePredicatesRule(Class<? extends Join> joinClass, RelFactories.FilterFactory filterFactory)	Deprecated.
	JoinPushTransitivePredicatesRule(Class<? extends Join> joinClass, RelBuilderFactory relBuilderFactory)	Deprecated.
protected	JoinPushTransitivePredicatesRule(JoinPushTransitivePredicatesRule.Config config)	Creates a JoinPushTransitivePredicatesRule.

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

Constructor Details

JoinPushTransitivePredicatesRule

protected JoinPushTransitivePredicatesRule(JoinPushTransitivePredicatesRule.Config config)

Creates a JoinPushTransitivePredicatesRule.

JoinPushTransitivePredicatesRule

@Deprecated
public JoinPushTransitivePredicatesRule(Class<? extends Join> joinClass,
 RelBuilderFactory relBuilderFactory)

Deprecated.

JoinPushTransitivePredicatesRule

@Deprecated
public JoinPushTransitivePredicatesRule(Class<? extends Join> joinClass,
 RelFactories.FilterFactory filterFactory)

Deprecated.

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)