Package org.apache.calcite.rel.rules

Interface AggregateReduceFunctionsRule.Config

All Superinterfaces:

RelRule.Config

Enclosing class:

AggregateReduceFunctionsRule

@Immutable
public static interface AggregateReduceFunctionsRule.Config
extends RelRule.Config

Rule configuration.

Field Summary

Fields

Modifier and Type	Field	Description
static final AggregateReduceFunctionsRule.Config	DEFAULT
static final Set<SqlKind>	DEFAULT_FUNCTIONS_TO_REDUCE

Method Summary

Modifier and Type	Method	Description
default Set<SqlKind>	actualFunctionsToReduce()	Returns the validated set of functions to reduce, or the default set if not specified.
default Predicate<AggregateCall>	extraCondition()	A test that must pass before attempting to reduce any aggregate function.
@Nullable Set<SqlKind>	functionsToReduce()	The set of aggregate function types to try to reduce.
default AggregateReduceFunctionsRule	toRule()	Creates a rule that uses this configuration.
AggregateReduceFunctionsRule.Config	withExtraCondition(Predicate<AggregateCall> test)	Sets extraCondition().
AggregateReduceFunctionsRule.Config	withFunctionsToReduce(@Nullable Iterable<SqlKind> functionSet)	Sets functionsToReduce().
default AggregateReduceFunctionsRule.Config	withFunctionsToReduce(@Nullable Set<SqlKind> functionSet)
default AggregateReduceFunctionsRule.Config	withOperandFor(Class<? extends Aggregate> aggregateClass)	Defines an operand tree for the given classes.

Methods inherited from interface org.apache.calcite.plan.RelRule.Config

as, description, operandSupplier, relBuilderFactory, withDescription, withOperandSupplier, withRelBuilderFactory

Field Details

DEFAULT

static final AggregateReduceFunctionsRule.Config DEFAULT

DEFAULT_FUNCTIONS_TO_REDUCE

static final Set<SqlKind> DEFAULT_FUNCTIONS_TO_REDUCE

Method Details

toRule

default AggregateReduceFunctionsRule toRule()

Description copied from interface: RelRule.Config

Creates a rule that uses this configuration. Sub-class must override.

Specified by:

toRule in interface RelRule.Config

functionsToReduce

@Nullable Set<SqlKind> functionsToReduce()

The set of aggregate function types to try to reduce.

Any aggregate function whose type is omitted from this set, OR which does not pass the extraCondition(), will be ignored.

extraCondition

@Default
default Predicate<AggregateCall> extraCondition()

A test that must pass before attempting to reduce any aggregate function.

Any aggegate function which does not pass, OR whose type is omitted from functionsToReduce(), will be ignored. The default predicate always passes.

withFunctionsToReduce

AggregateReduceFunctionsRule.Config withFunctionsToReduce(@Nullable Iterable<SqlKind> functionSet)

Sets functionsToReduce().

withFunctionsToReduce

default AggregateReduceFunctionsRule.Config withFunctionsToReduce(@Nullable Set<SqlKind> functionSet)

withExtraCondition

AggregateReduceFunctionsRule.Config withExtraCondition(Predicate<AggregateCall> test)

Sets extraCondition().

actualFunctionsToReduce

default Set<SqlKind> actualFunctionsToReduce()

Returns the validated set of functions to reduce, or the default set if not specified.

withOperandFor

default AggregateReduceFunctionsRule.Config withOperandFor(Class<? extends Aggregate> aggregateClass)

Defines an operand tree for the given classes.