Package org.apache.calcite.rel.metadata

Interface BuiltInMetadata.AllPredicates

All Superinterfaces:

Metadata

Enclosing class:

BuiltInMetadata

public static interface BuiltInMetadata.AllPredicates
extends Metadata

Metadata about the predicates that hold in the rows emitted from a relational expression.

The difference with respect to BuiltInMetadata.Predicates provider is that this provider tries to extract ALL predicates even if they are not applied on the output expressions of the relational expression; we rely on RexTableInputRef to reference origin columns in TableScan for the result predicates.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	BuiltInMetadata.AllPredicates.Handler	Handler API.

Field Summary

Fields

Modifier and Type	Field	Description
static final MetadataDef<BuiltInMetadata.AllPredicates>	DEF

Method Summary

Modifier and Type	Method	Description
@Nullable RelOptPredicateList	getAllPredicates()	Derives the predicates that hold on rows emitted from a relational expression.

Methods inherited from interface org.apache.calcite.rel.metadata.Metadata

rel

Field Details

DEF

static final MetadataDef<BuiltInMetadata.AllPredicates> DEF

Method Details

getAllPredicates

@Nullable RelOptPredicateList getAllPredicates()

Derives the predicates that hold on rows emitted from a relational expression.

Returns:

predicate list, or null if the provider cannot infer the lineage for any of the expressions contained in any of the predicates