Package io.trino.spi.connector

Interface JoinStatistics

public interface JoinStatistics

Represents estimated statistics for join node and left and right table passed to ConnectorMetadata.applyJoin(ConnectorSession, JoinType, ConnectorTableHandle, ConnectorTableHandle, List, Map, Map, JoinStatistics)

Method Summary

Modifier and Type	Method	Description
Optional<BasicRelationStatistics>	getJoinStatistics()	Estimated statistics for join result.
Optional<BasicRelationStatistics>	getLeftStatistics()	Estimated statistics for left join table.
Optional<BasicRelationStatistics>	getRightStatistics()	Estimated statistics for right join table.

Method Details

getLeftStatistics

Optional<BasicRelationStatistics> getLeftStatistics()

Estimated statistics for left join table.

getRightStatistics

Optional<BasicRelationStatistics> getRightStatistics()

Estimated statistics for right join table.

getJoinStatistics

Optional<BasicRelationStatistics> getJoinStatistics()

Estimated statistics for join result.