com.facebook.presto.cost

Class JoinStatsRule

java.lang.Object

com.facebook.presto.cost.SimpleStatsRule<JoinNode>

com.facebook.presto.cost.JoinStatsRule

All Implemented Interfaces:

ComposableStatsCalculator.Rule<JoinNode>

public class JoinStatsRule
extends SimpleStatsRule<JoinNode>

Constructor Summary

Constructors

Constructor and Description
JoinStatsRule(FilterStatsCalculator filterStatsCalculator, StatsNormalizer normalizer)

Method Summary

Modifier and Type	Method and Description
protected Optional<PlanNodeStatsEstimate>	doCalculate(JoinNode node, StatsProvider sourceStats, Lookup lookup, Session session, TypeProvider types)
Pattern<JoinNode>	getPattern()

Methods inherited from class com.facebook.presto.cost.SimpleStatsRule

calculate

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinStatsRule

public JoinStatsRule(FilterStatsCalculator filterStatsCalculator,
                     StatsNormalizer normalizer)

Method Detail

getPattern

public Pattern<JoinNode> getPattern()

doCalculate

protected Optional<PlanNodeStatsEstimate> doCalculate(JoinNode node,
                                                      StatsProvider sourceStats,
                                                      Lookup lookup,
                                                      Session session,
                                                      TypeProvider types)

Specified by:

doCalculate in class SimpleStatsRule<JoinNode>