Interface QueryOptimizationScopeProvider

All Known Implementing Classes:

SketchBasedJoinEstimator

public interface QueryOptimizationScopeProvider

Optional hook for statistics implementations that can share short-lived caches during one optimizer pass.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	QueryOptimizationScopeProvider.QueryOptimizationScope

Field Summary

Fields

Modifier and Type	Field	Description
static final QueryOptimizationScopeProvider.QueryOptimizationScope	NO_OP_SCOPE

Method Summary

Modifier and Type	Method	Description
QueryOptimizationScopeProvider.QueryOptimizationScope	beginQueryOptimizationScope()

Field Details

NO_OP_SCOPE

static final QueryOptimizationScopeProvider.QueryOptimizationScope NO_OP_SCOPE

Method Details

beginQueryOptimizationScope

QueryOptimizationScopeProvider.QueryOptimizationScope beginQueryOptimizationScope()