Uses of Interface
io.trino.sql.planner.iterative.Rule

Packages that use Rule

Package	Description
io.trino.sql.planner
io.trino.sql.planner.iterative
io.trino.sql.planner.iterative.rule

Uses of Rule in io.trino.sql.planner

Methods in io.trino.sql.planner that return types with arguments of type Rule

Modifier and Type	Method	Description
static Set<Rule<?>>	PlanOptimizers.columnPruningRules(Metadata metadata)

Methods in io.trino.sql.planner with parameters of type Rule

Modifier and Type	Method	Description
void	RuleStatsRecorder.record(Rule<?> rule, long nanos, boolean match)
void	RuleStatsRecorder.recordFailure(Rule<?> rule)

Method parameters in io.trino.sql.planner with type arguments of type Rule

Modifier and Type	Method	Description
void	RuleStatsRecorder.registerAll(Collection<Rule<?>> rules)

Uses of Rule in io.trino.sql.planner.iterative

Methods in io.trino.sql.planner.iterative that return types with arguments of type Rule

Modifier and Type	Method	Description
Stream<Rule<?>>	RuleIndex.getCandidates(Object object)
Set<Rule<?>>	IterativeOptimizer.getRules()

Methods in io.trino.sql.planner.iterative with parameters of type Rule

Modifier and Type	Method	Description
RuleIndex.Builder	RuleIndex.Builder.register(Rule<?> rule)

Method parameters in io.trino.sql.planner.iterative with type arguments of type Rule

Modifier and Type	Method	Description
RuleIndex.Builder	RuleIndex.Builder.register(Set<Rule<?>> rules)

Constructor parameters in io.trino.sql.planner.iterative with type arguments of type Rule

Constructor	Description
IterativeOptimizer(Metadata metadata, RuleStatsRecorder stats, StatsCalculator statsCalculator, CostCalculator costCalculator, Predicate<Session> useLegacyRules, List<PlanOptimizer> legacyRules, Set<Rule<?>> newRules)
IterativeOptimizer(Metadata metadata, RuleStatsRecorder stats, StatsCalculator statsCalculator, CostCalculator costCalculator, Set<Rule<?>> rules)

Uses of Rule in io.trino.sql.planner.iterative.rule

Classes in io.trino.sql.planner.iterative.rule that implement Rule

Modifier and Type	Class	Description
class	AddIntermediateAggregations	Adds INTERMEDIATE aggregations between an un-grouped FINAL aggregation and its preceding PARTIAL aggregation.
class	ApplyPreferredTableExecutePartitioning	Replaces TableExecuteNode with TableExecuteNode.getPreferredPartitioningScheme() with a TableExecuteNode with TableExecuteNode.getPartitioningScheme() set.
class	ApplyPreferredTableWriterPartitioning	Rule verifies if preconditions for using preferred write partitioning are met: - expected number of partitions to be written (based on table stat) is greater than or equal to preferred_write_partitioning_min_number_of_partitions session property, - use_preferred_write_partitioning is set to true.
class	ApplyTableScanRedirection
class	CreatePartialTopN
class	DecorrelateInnerUnnestWithGlobalAggregation	This rule finds correlated UnnestNode in CorrelatedJoinNode's subquery and folds them into UnnestNode representing LEFT JOIN UNNEST.
class	DecorrelateLeftUnnestWithGlobalAggregation	This rule finds correlated UnnestNode in CorrelatedJoinNode's subquery and folds them into UnnestNode representing LEFT JOIN UNNEST.
class	DecorrelateUnnest	This rule decorrelates plans with correlated UnnestNode and optional EnforceSingleRowNode, optional LimitNode, optional TopNNode and optional projections in the subquery.
class	DetermineJoinDistributionType
class	DetermineSemiJoinDistributionType	This rule must run after the distribution type has already been set for delete queries, since semi joins in delete queries must be replicated.
class	DetermineTableScanNodePartitioning
class	EliminateCrossJoins
class	EvaluateEmptyIntersect	Converts an Intersect node with at least one empty branch to an empty Values node.
class	EvaluateZeroSample	Replaces 0% sample node with empty values node.
class	ExtractDereferencesFromFilterAboveScan	Transforms:
static class	ExtractSpatialJoins.ExtractSpatialInnerJoin
static class	ExtractSpatialJoins.ExtractSpatialLeftJoin
static class	GatherAndMergeWindows.MergeAdjacentWindowsOverProjects
static class	GatherAndMergeWindows.SwapAdjacentWindowsBySpecifications
class	ImplementBernoulliSampleAsFilter	Transforms:
class	ImplementExceptAll	Implement EXCEPT ALL using union, window and filter.
class	ImplementExceptDistinctAsUnion	Converts EXCEPT DISTINCT queries into UNION ALL..GROUP BY...WHERE E.g.:
class	ImplementFilteredAggregations	Implements filtered aggregations by transforming plans of the following shape:
class	ImplementIntersectAll	Implement INTERSECT ALL using union, window and filter.
class	ImplementIntersectDistinctAsUnion	Converts INTERSECT DISTINCT queries into UNION ALL..GROUP BY...WHERE E.g.:
class	ImplementLimitWithTies	Transforms:
class	ImplementOffset	Transforms:
class	InlineProjectIntoFilter	Replace filter predicate conjuncts with underlying project expressions.
class	InlineProjections	Inlines expressions from a child project node into a parent project node as long as they are simple constants, or they are referenced only once (to avoid introducing duplicate computation) and the references don't appear within a TRY block (to avoid changing semantics).
class	MergeExcept
class	MergeFilters
class	MergeIntersect	Transforms:
class	MergeLimitOverProjectWithSort	Transforms:
class	MergeLimits	This rule handles both LimitNode with ties and LimitNode without ties.
class	MergeLimitWithDistinct
class	MergeLimitWithSort
class	MergeLimitWithTopN	This rule handles both LimitNode with ties and LimitNode without ties.
static class	MergePatternRecognitionNodes.MergePatternRecognitionNodesWithoutProject
static class	MergePatternRecognitionNodes.MergePatternRecognitionNodesWithProject
class	MergeProjectWithValues	Transforms:
class	MergeUnion	Transforms:
class	MultipleDistinctAggregationToMarkDistinct	Implements distinct aggregations with different inputs by transforming plans of the following shape:
class	OptimizeDuplicateInsensitiveJoins	For empty aggregations duplicate input rows can be skipped.
class	OptimizeRowPattern
class	ProjectOffPushDownRule<N extends PlanNode>
class	PruneAggregationColumns
class	PruneAggregationSourceColumns
class	PruneApplyColumns	This rule restricts the outputs of ApplyNode's input and subquery based on which ApplyNode's output symbols are referenced.
class	PruneApplyCorrelation	This rule updates ApplyNode's correlation list.
class	PruneApplySourceColumns	This rule restricts outputs of ApplyNode's subquery to include only the symbols needed for subqueryAssignments.
class	PruneAssignUniqueIdColumns
class	PruneCorrelatedJoinColumns	This rule restricts the outputs of CorrelatedJoinNode's input and subquery based on which CorrelatedJoinNode's output symbols are referenced.
class	PruneCorrelatedJoinCorrelation	This rule updates CorrelatedJoinNode's correlation list.
class	PruneCountAggregationOverScalar	A count over a subquery can be reduced to a VALUES(1) provided the subquery is a scalar
class	PruneDeleteSourceColumns
class	PruneDistinctAggregation
class	PruneDistinctLimitSourceColumns
class	PruneEnforceSingleRowColumns
class	PruneExceptSourceColumns
class	PruneExchangeColumns	This rule restricts the outputs of ExchangeNode based on which ExchangeNode's output symbols are either referenced by the parent node or used for partitioning, ordering or as a hash symbol by the ExchangeNode.
class	PruneExchangeSourceColumns
class	PruneExplainAnalyzeSourceColumns
class	PruneFilterColumns
class	PruneGroupIdColumns	This rule prunes GroupIdNode's aggregationArguments.
class	PruneGroupIdSourceColumns
class	PruneIndexJoinColumns
class	PruneIndexSourceColumns
class	PruneIntersectSourceColumns
class	PruneJoinChildrenColumns	Joins support output symbol selection, so make any project-off of child columns explicit in project nodes.
class	PruneJoinColumns	Joins support output symbol selection, so absorb any project-off into the node.
class	PruneLimitColumns
class	PruneMarkDistinctColumns
class	PruneOffsetColumns
class	PruneOrderByInAggregation
class	PruneOutputSourceColumns
class	PrunePattenRecognitionColumns
class	PrunePatternRecognitionSourceColumns	This rule restricts the inputs to PatternRecognitionNode based on which symbols are used by the inner structures of the PatternRecognitionNode.
class	PruneProjectColumns
class	PruneRowNumberColumns
class	PruneSampleColumns
class	PruneSemiJoinColumns
class	PruneSemiJoinFilteringSourceColumns
class	PruneSortColumns
class	PruneSpatialJoinChildrenColumns
class	PruneSpatialJoinColumns	Spatial joins support output symbol selection, so absorb any project-off into the node.
class	PruneTableExecuteSourceColumns
class	PruneTableScanColumns	This is a special case of PushProjectionIntoTableScan that performs only column pruning.
class	PruneTableWriterSourceColumns
class	PruneTopNColumns
class	PruneTopNRankingColumns
class	PruneUnionColumns	Transforms
class	PruneUnionSourceColumns
class	PruneUnnestColumns	Absorb pruning projection into the node.
class	PruneUnnestSourceColumns
class	PruneUpdateSourceColumns
class	PruneValuesColumns
class	PruneWindowColumns
class	PushAggregationIntoTableScan
class	PushAggregationThroughOuterJoin	This optimizer pushes aggregations below outer joins when: the aggregation is on top of the outer join, it groups by all columns in the outer table, and the outer rows are guaranteed to be distinct.
class	PushDeleteIntoConnector
class	PushDistinctLimitIntoTableScan
class	PushDownDereferencesThroughAssignUniqueId	Transforms:
class	PushDownDereferencesThroughLimit	Transforms:
class	PushDownDereferencesThroughMarkDistinct	Transforms:
class	PushDownDereferencesThroughRowNumber	Transforms:
class	PushDownDereferencesThroughSort	Transforms:
class	PushDownDereferencesThroughTopN	Transforms:
class	PushDownDereferencesThroughTopNRanking	Transforms:
class	PushDownDereferencesThroughWindow	Transforms:
class	PushDownDereferenceThroughFilter	Transforms:
class	PushDownDereferenceThroughJoin	Transforms:
class	PushDownDereferenceThroughProject	Transforms:
class	PushDownDereferenceThroughSemiJoin	Transforms:
class	PushDownDereferenceThroughUnnest	Transforms:
class	PushdownFilterIntoRowNumber
class	PushdownFilterIntoWindow
class	PushdownLimitIntoRowNumber
class	PushdownLimitIntoWindow
class	PushDownProjectionsFromPatternRecognition	Aggregate functions in pattern recognition context have special semantics.
class	PushJoinIntoTableScan
class	PushLimitIntoTableScan
class	PushLimitThroughMarkDistinct
class	PushLimitThroughOffset	Transforms:
class	PushLimitThroughOuterJoin	Transforms:
class	PushLimitThroughProject
class	PushLimitThroughSemiJoin
class	PushLimitThroughUnion	Transforms:
class	PushOffsetThroughProject	Transforms:
class	PushPartialAggregationThroughExchange
class	PushPartialAggregationThroughJoin
class	PushPredicateIntoTableScan	These rules should not be run after AddExchanges so as not to overwrite the TableLayout chosen by AddExchanges
class	PushPredicateThroughProjectIntoRowNumber	This rule pushes filter predicate concerning row number symbol into RowNumberNode by modifying maxRowCountPerPartition.
class	PushPredicateThroughProjectIntoWindow	This rule pushes filter predicate concerning a ranking symbol into WindowNode by converting it into TopNRankingNode.
class	PushProjectionIntoTableScan
class	PushProjectionThroughExchange	Transforms:
class	PushProjectionThroughUnion
class	PushRemoteExchangeThroughAssignUniqueId	Pushes RemoteExchange node down through the AssignUniqueId to preserve partitioned_on(unique) and grouped(unique) properties for the output of the AssignUniqueId.
class	PushSampleIntoTableScan
class	PushTableWriteThroughUnion
class	PushTopNIntoTableScan
class	PushTopNThroughOuterJoin	Transforms:
class	PushTopNThroughProject	Transforms:
class	PushTopNThroughUnion
class	RemoveAggregationInSemiJoin	Remove the aggregation node that produces distinct rows from the Filtering source of a Semi join.
class	RemoveEmptyExceptBranches	Removes branches from an ExceptNode that are guaranteed to produce 0 rows.
class	RemoveEmptyTableExecute	If the predicate for a table execute is optimized to false, the target table scan of table execute will be replaced with an empty values node.
class	RemoveEmptyUnionBranches	Removes branches from a UnionNode that are guaranteed to produce 0 rows.
class	RemoveFullSample	Removes 100% sample nodes.
class	RemoveRedundantDistinctLimit	Replace DistinctLimit node 1.
class	RemoveRedundantEnforceSingleRowNode
class	RemoveRedundantExists	Given:
class	RemoveRedundantIdentityProjections	Removes projection nodes that only perform non-renaming identity projections
class	RemoveRedundantJoin
class	RemoveRedundantLimit	Remove Limit node when the subplan is guaranteed to produce fewer rows than the limit and replace the plan with empty values if the limit count is 0.
class	RemoveRedundantOffset	Remove Offset node and its subplan when the subplan is guaranteed to produce no more rows than the offset and replace the plan with empty values.
class	RemoveRedundantSort
class	RemoveRedundantSortBelowLimitWithTies	This rule removes SortNode being a source of LimitNode with ties.
class	RemoveRedundantTableScanPredicate
class	RemoveRedundantTopN	Replace TopN node 1.
class	RemoveTrivialFilters
class	RemoveUnreferencedScalarApplyNodes
class	RemoveUnreferencedScalarSubqueries
class	ReorderJoins
class	ReplaceJoinOverConstantWithProject	This rule transforms plans with join where one of the sources is a single-row ValuesNode, and the join condition is `on true`.
class	ReplaceRedundantJoinWithProject	This rule is complementary to RemoveRedundantJoin.
class	ReplaceRedundantJoinWithSource	This rule transforms plans with joins, where: - one of the sources is scalar and produces no output symbols.
class	ReplaceWindowWithRowNumber
class	RewriteSpatialPartitioningAggregation	Re-writes spatial_partitioning(geometry) aggregations into spatial_partitioning(envelope, partition_count) on top of ST_Envelope(geometry) projection, e.g.
class	SimplifyCountOverConstant
class	SimplifyFilterPredicate	Simplify conditional expressions in filter predicate.
class	SingleDistinctAggregationToGroupBy	Implements distinct aggregations with similar inputs by transforming plans of the following shape:
class	TransformCorrelatedDistinctAggregationWithoutProjection	This rule decorrelates a correlated subquery of LEFT correlated join with distinct operator (grouped aggregation with no aggregation assignments) It is similar to TransformCorrelatedDistinctAggregationWithProjection rule, but does not support projection over aggregation in the subquery
class	TransformCorrelatedDistinctAggregationWithProjection	This rule decorrelates a correlated subquery of LEFT correlated join with distinct operator (grouped aggregation with no aggregation assignments)
class	TransformCorrelatedGlobalAggregationWithoutProjection	This rule decorrelates a correlated subquery with: - single global aggregation, or - global aggregation over distinct operator (grouped aggregation with no aggregation assignments) It is similar to TransformCorrelatedGlobalAggregationWithProjection rule, but does not support projection over aggregation in the subquery
class	TransformCorrelatedGlobalAggregationWithProjection	This rule decorrelates a correlated subquery of LEFT or INNER correlated join with: - single global aggregation, or - global aggregation over distinct operator (grouped aggregation with no aggregation assignments)
class	TransformCorrelatedGroupedAggregationWithoutProjection	This rule decorrelates a correlated subquery of INNER correlated join with: - single grouped aggregation, or - grouped aggregation over distinct operator (grouped aggregation with no aggregation assignments) It is similar to TransformCorrelatedGroupedAggregationWithProjection rule, but does not support projection over aggregation in the subquery
class	TransformCorrelatedGroupedAggregationWithProjection	This rule decorrelates a correlated subquery of INNER correlated join with: - single grouped aggregation, or - grouped aggregation over distinct operator (grouped aggregation with no aggregation assignments)
class	TransformCorrelatedInPredicateToJoin	Replaces correlated ApplyNode with InPredicate expression with SemiJoin
class	TransformCorrelatedJoinToJoin	Tries to decorrelate subquery and rewrite it using normal join.
class	TransformCorrelatedScalarSubquery	Scalar filter scan query is something like:
class	TransformCorrelatedSingleRowSubqueryToProject	This optimizer can rewrite correlated single row subquery to projection in a way described here: From:
class	TransformExistsApplyToCorrelatedJoin	EXISTS is modeled as (if correlated predicates are equality comparisons):
class	TransformFilteringSemiJoinToInnerJoin	Rewrite filtering semi-join to inner join.
class	TransformUncorrelatedInPredicateSubqueryToSemiJoin	This optimizers looks for InPredicate expressions in ApplyNodes and replaces the nodes with SemiJoin nodes.
class	TransformUncorrelatedSubqueryToJoin
class	UnwrapSingleColumnRowInApply	Given x::row(t) and y::row(t), converts assignments of the form

Methods in io.trino.sql.planner.iterative.rule that return Rule

Modifier and Type	Method	Description
Rule<?>	ExpressionRewriteRuleSet.aggregationExpressionRewrite()
Rule<?>	ExpressionRewriteRuleSet.filterExpressionRewrite()
Rule<?>	ExpressionRewriteRuleSet.joinExpressionRewrite()
Rule<?>	ExpressionRewriteRuleSet.patternRecognitionExpressionRewrite()
Rule<?>	ExpressionRewriteRuleSet.projectExpressionRewrite()
Rule<?>	ExpressionRewriteRuleSet.valuesExpressionRewrite()

Methods in io.trino.sql.planner.iterative.rule that return types with arguments of type Rule

Modifier and Type	Method	Description
Set<Rule<?>>	AddExchangesBelowPartialAggregationOverGroupIdRuleSet.rules()
Set<Rule<?>>	DesugarArrayConstructor.rules()
Set<Rule<?>>	DesugarLike.rules()
Set<Rule<?>>	ExpressionRewriteRuleSet.rules()
Set<Rule<?>>	ExtractSpatialJoins.rules()
static Set<Rule<?>>	GatherAndMergeWindows.rules()
static Set<Rule<?>>	MergePatternRecognitionNodes.rules()
static Set<Rule<?>>	RemoveEmptyDeleteRuleSet.rules()
Set<Rule<?>>	SimplifyExpressions.rules()