io.prestosql.cost

Class SortStatsRule

java.lang.Object

io.prestosql.cost.SortStatsRule

All Implemented Interfaces:

ComposableStatsCalculator.Rule<SortNode>

public class SortStatsRule
extends Object
implements ComposableStatsCalculator.Rule<SortNode>

Constructor Summary

Constructors

Constructor and Description
SortStatsRule()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

SortStatsRule

public SortStatsRule()

Method Detail

getPattern

public Pattern<SortNode> getPattern()

Specified by:

getPattern in interface ComposableStatsCalculator.Rule<SortNode>

calculate

public Optional<PlanNodeStatsEstimate> calculate(SortNode node,
                                                 StatsProvider sourceStats,
                                                 Lookup lookup,
                                                 Session session,
                                                 TypeProvider types)

Specified by:

calculate in interface ComposableStatsCalculator.Rule<SortNode>