Package io.trino.cost

Interface ComposableStatsCalculator.Rule<T extends PlanNode>

All Known Implementing Classes:

AggregationStatsRule, AssignUniqueIdStatsRule, EnforceSingleRowStatsRule, ExchangeStatsRule, FilterStatsRule, JoinStatsRule, LimitStatsRule, OutputStatsRule, ProjectStatsRule, RowNumberStatsRule, SampleStatsRule, SemiJoinStatsRule, SimpleFilterProjectSemiJoinStatsRule, SimpleStatsRule, SortStatsRule, SpatialJoinStatsRule, TableScanStatsRule, TopNStatsRule, UnionStatsRule, ValuesStatsRule

Enclosing class:

ComposableStatsCalculator

public static interface ComposableStatsCalculator.Rule<T extends PlanNode>

Method Summary

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

Method Details

getPattern

Pattern<T> getPattern()

calculate

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