Package org.apache.calcite.rel.rules

Class MeasureRules

java.lang.Object

org.apache.calcite.rel.rules.MeasureRules

public abstract class MeasureRules
extends Object

Collection of planner rules that deal with measures.

A typical rule pushes down M2V(measure) until it reaches a V2M(expression).

See Also:

• SqlInternalOperators.M2V
• SqlInternalOperators.V2M

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MeasureRules.AggregateMeasure2Rule	Rule that matches an Aggregate with at least one call to SqlInternalOperators.AGG_M2V and expands these calls by asking the measure for its expression.
static interface	MeasureRules.AggregateMeasure2RuleConfig	Configuration for MeasureRules.AggregateMeasure2Rule.
static class	MeasureRules.AggregateMeasureRule	Rule that matches an Aggregate with at least one call to SqlInternalOperators.AGG_M2V and converts those calls to SqlInternalOperators.M2X.
static interface	MeasureRules.AggregateMeasureRuleConfig	Configuration for MeasureRules.AggregateMeasureRule.
static class	MeasureRules.FilterSortMeasureRule	Rule that matches a Filter that contains a M2V call on top of a Sort and pushes down the M2V call.
static interface	MeasureRules.FilterSortMeasureRuleConfig	Configuration for MeasureRules.FilterSortMeasureRule.
static class	MeasureRules.ProjectMeasureRule	Rule that merges an Aggregate onto a Project.
static interface	MeasureRules.ProjectMeasureRuleConfig	Configuration for MeasureRules.ProjectMeasureRule.
static class	MeasureRules.ProjectSortMeasureRule	Rule that matches a Project that contains an M2V call on top of a Sort and pushes down the M2V call.
static interface	MeasureRules.ProjectSortMeasureRuleConfig	Configuration for MeasureRules.ProjectSortMeasureRule.

Field Summary

Fields

Modifier and Type	Field	Description
static final RelOptRule	AGGREGATE	Rule that matches an Aggregate that contains an AGG_M2V call and pushes down the AGG_M2V call into a Project.
static final RelOptRule	AGGREGATE2	Rule that matches an Aggregate that contains an AGG_M2V call and pushes down the AGG_M2V call into a Project.
static final RelOptRule	FILTER_SORT	Rule that matches a Filter that contains a M2V call on top of a Sort and pushes down the M2V call.
static final RelOptRule	PROJECT	Rule that merges an Aggregate onto a Project that contains a M2X call.
static final RelOptRule	PROJECT_SORT	Rule that matches a Project that contains a M2V call on top of a Sort and pushes down the M2V call.

Method Summary

Modifier and Type	Method	Description
static Iterable<? extends RelOptRule>	rules()	Returns all rules.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

AGGREGATE

public static final RelOptRule AGGREGATE

Rule that matches an Aggregate that contains an AGG_M2V call and pushes down the AGG_M2V call into a Project.

PROJECT

public static final RelOptRule PROJECT

Rule that merges an Aggregate onto a Project that contains a M2X call.

AGGREGATE2

public static final RelOptRule AGGREGATE2

Rule that matches an Aggregate that contains an AGG_M2V call and pushes down the AGG_M2V call into a Project.

FILTER_SORT

public static final RelOptRule FILTER_SORT

Rule that matches a Filter that contains a M2V call on top of a Sort and pushes down the M2V call.

PROJECT_SORT

public static final RelOptRule PROJECT_SORT

Rule that matches a Project that contains a M2V call on top of a Sort and pushes down the M2V call.

Method Details

rules

public static Iterable<? extends RelOptRule> rules()

Returns all rules.