io.prestosql.sql.planner.iterative.rule

Class RemoveAggregationInSemiJoin

java.lang.Object

io.prestosql.sql.planner.iterative.rule.RemoveAggregationInSemiJoin

All Implemented Interfaces:

Rule<SemiJoinNode>

public class RemoveAggregationInSemiJoin
extends Object
implements Rule<SemiJoinNode>

Remove the aggregation node that produces distinct rows from the Filtering source of a Semi join.

Nested Class Summary

Nested classes/interfaces inherited from interface io.prestosql.sql.planner.iterative.Rule

Rule.Context, Rule.Result

Constructor Summary

Constructors

Constructor and Description
RemoveAggregationInSemiJoin()

Method Summary

Modifier and Type	Method and Description
Rule.Result	apply(SemiJoinNode semiJoinNode, Captures captures, Rule.Context context)
Pattern<SemiJoinNode>	getPattern() Returns a pattern to which plan nodes this rule applies.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.prestosql.sql.planner.iterative.Rule

isEnabled

Constructor Detail

RemoveAggregationInSemiJoin

public RemoveAggregationInSemiJoin()

Method Detail

getPattern

public Pattern<SemiJoinNode> getPattern()

Description copied from interface: Rule

Returns a pattern to which plan nodes this rule applies.

Specified by:

getPattern in interface Rule<SemiJoinNode>

apply

public Rule.Result apply(SemiJoinNode semiJoinNode,
                         Captures captures,
                         Rule.Context context)

Specified by:

apply in interface Rule<SemiJoinNode>