OutputStatsEstimator (trino-main 465 API)

All Known Implementing Classes:: ByEagerParentOutputStatsEstimator, BySmallStageOutputStatsEstimator, ByTaskProgressOutputStatsEstimator, CompositeOutputStatsEstimator

public interface OutputStatsEstimator

Nested Class Summary

Nested Classes

Modifier and Type

Interface

Description

static final record

OutputStatsEstimator.OutputStatsEstimateResult
Field Summary

Fields

Modifier and Type

Field

Description

static final OutputStatsEstimator.OutputStatsEstimateResult

UNKNOWN
Method Summary

Modifier and Type

Method

Description

Optional<OutputStatsEstimator.OutputStatsEstimateResult>

getEstimatedOutputStats(EventDrivenFaultTolerantQueryScheduler.StageExecution stageExecution, Function<StageId,EventDrivenFaultTolerantQueryScheduler.StageExecution> stageExecutionLookup, boolean parentEager)

Field Details
- UNKNOWN
  
  static final OutputStatsEstimator.OutputStatsEstimateResult UNKNOWN
Method Details
- getEstimatedOutputStats
  
  Optional<OutputStatsEstimator.OutputStatsEstimateResult> getEstimatedOutputStats(EventDrivenFaultTolerantQueryScheduler.StageExecution stageExecution, Function<StageId,EventDrivenFaultTolerantQueryScheduler.StageExecution> stageExecutionLookup, boolean parentEager)