Package io.trino.cost

Interface StatsCalculator

All Known Implementing Classes:

ComposableStatsCalculator

public interface StatsCalculator

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static final record	StatsCalculator.Context

Method Summary

Modifier and Type	Method	Description
PlanNodeStatsEstimate	calculateStats(PlanNode node, StatsCalculator.Context context)	Calculate stats for the node.
static StatsCalculator	noopStatsCalculator()

Method Details

calculateStats

PlanNodeStatsEstimate calculateStats(PlanNode node,
 StatsCalculator.Context context)

Calculate stats for the node.

Parameters:

node - The node to compute stats for.

context - The context required to calculate stats.

noopStatsCalculator

static StatsCalculator noopStatsCalculator()