org.apache.calcite.rel.rules

Class AggregateUnionTransposeRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.rel.rules.AggregateUnionTransposeRule

public class AggregateUnionTransposeRule
extends RelOptRule

Planner rule that pushes an Aggregate past a non-distinct Union.

Field Summary

Fields

Modifier and Type	Field and Description
static AggregateUnionTransposeRule	INSTANCE
private static Map<Class<? extends SqlAggFunction>,Boolean>	SUPPORTED_AGGREGATES

Fields inherited from class org.apache.calcite.plan.RelOptRule

description, operands, relBuilderFactory

Constructor Summary

Constructors

Constructor and Description
AggregateUnionTransposeRule(Class<? extends Aggregate> aggregateClass, Class<? extends Union> unionClass, RelBuilderFactory relBuilderFactory) Creates an AggregateUnionTransposeRule.
AggregateUnionTransposeRule(Class<? extends Aggregate> aggregateClass, RelFactories.AggregateFactory aggregateFactory, Class<? extends Union> unionClass, RelFactories.SetOpFactory setOpFactory) Deprecated.

Method Summary

Modifier and Type	Method and Description
void	onMatch(RelOptRuleCall call) Receives notification about a rule match.
private List<AggregateCall>	transformAggCalls(RelNode input, int groupCount, List<AggregateCall> origCalls)

Methods inherited from class org.apache.calcite.plan.RelOptRule

any, convert, convert, convertList, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, matches, none, operand, operand, operand, operand, operand, some, toString, unordered

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

INSTANCE

public static final AggregateUnionTransposeRule INSTANCE

SUPPORTED_AGGREGATES

private static final Map<Class<? extends SqlAggFunction>,Boolean> SUPPORTED_AGGREGATES

Constructor Detail

AggregateUnionTransposeRule

public AggregateUnionTransposeRule(Class<? extends Aggregate> aggregateClass,
                                   Class<? extends Union> unionClass,
                                   RelBuilderFactory relBuilderFactory)

Creates an AggregateUnionTransposeRule.

AggregateUnionTransposeRule

@Deprecated
public AggregateUnionTransposeRule(Class<? extends Aggregate> aggregateClass,
                                               RelFactories.AggregateFactory aggregateFactory,
                                               Class<? extends Union> unionClass,
                                               RelFactories.SetOpFactory setOpFactory)

Deprecated.

Method Detail

onMatch

public void onMatch(RelOptRuleCall call)

Description copied from class: RelOptRule

Receives notification about a rule match. At the time that this method is called, call.rels holds the set of relational expressions which match the operands to the rule; call.rels[0] is the root expression.

Typically a rule would check that the nodes are valid matches, creates a new expression, then calls back RelOptRuleCall.transformTo(org.apache.calcite.rel.RelNode, java.util.Map<org.apache.calcite.rel.RelNode, org.apache.calcite.rel.RelNode>) to register the expression.

Specified by:

onMatch in class RelOptRule

Parameters:

call - Rule call

See Also:

RelOptRule.matches(RelOptRuleCall)

transformAggCalls

private List<AggregateCall> transformAggCalls(RelNode input,
                                              int groupCount,
                                              List<AggregateCall> origCalls)