Uses of Class
org.apache.calcite.plan.volcano.RelSubset

Packages that use RelSubset

Package	Description
org.apache.calcite.plan.volcano	Optimizes relational expressions.
org.apache.calcite.rel.metadata	Defines metadata interfaces and utilities for relational expressions.

Uses of RelSubset in org.apache.calcite.plan.volcano

Fields in org.apache.calcite.plan.volcano declared as RelSubset

Modifier and Type	Field and Description
protected RelSubset	VolcanoPlanner.root
private RelSubset	VolcanoRuleMatch.targetSubset

Fields in org.apache.calcite.plan.volcano with type parameters of type RelSubset

Modifier and Type	Field and Description
(package private) Set<RelSubset>	RuleQueue.boostedSubsets The set of RelSubsets whose importance is currently in an artificially raised state.
private IdentityHashMap<RelNode,RelSubset>	VolcanoPlanner.mapRel2Subset Map each registered expression (RelNode) to its equivalence set (RelSubset).
(package private) com.google.common.collect.Multimap<RelSubset,VolcanoRuleMatch>	RuleQueue.PhaseMatchList.matchMap Multi-map of RelSubset to VolcanoRuleMatches.
private com.google.common.collect.Ordering<RelSubset>	RuleQueue.relImportanceOrdering Compares relexps according to their cached 'importance'.
(package private) Map<RelSubset,Double>	RuleQueue.subsetImportances The importance of each subset.
(package private) List<RelSubset>	RelSet.subsets

Methods in org.apache.calcite.plan.volcano that return RelSubset

Modifier and Type	Method and Description
RelSubset	RelSet.add(RelNode rel) Adds a relational expression to a set, with its results available under a particular calling convention.
private RelSubset	VolcanoPlanner.addRelToSet(RelNode rel, RelSet set)
private RelSubset	VolcanoPlanner.canonize(RelSubset subset) If a subset has one or more equivalent subsets (owing to a set having merged with another), returns the subset which is the leader of the equivalence class.
RelSubset	VolcanoPlanner.ensureRegistered(RelNode rel, RelNode equivRel)
(package private) RelSubset	RelSet.getOrCreateSubset(RelOptCluster cluster, RelTraitSet traits)
RelSubset	VolcanoPlanner.getSubset(RelNode rel) Returns the subset that a relational expression belongs to.
RelSubset	VolcanoPlanner.getSubset(RelNode rel, RelTraitSet traits)
RelSubset	VolcanoPlanner.getSubset(RelNode rel, RelTraitSet traits, boolean createIfMissing)
RelSubset	RelSet.getSubset(RelTraitSet traits)
private RelSubset	VolcanoRuleMatch.guessSubset() Returns a guess as to which subset (that is equivalence class of relational expressions combined with a set of physical traits) the result of this rule will belong to.
RelSubset	VolcanoPlanner.register(RelNode rel, RelNode equivRel)
private RelSubset	VolcanoPlanner.registerImpl(RelNode rel, RelSet set) Registers a new expression exp and queues up rule matches.
private RelSubset	VolcanoPlanner.registerSubset(RelSet set, RelSubset subset)

Methods in org.apache.calcite.plan.volcano that return types with arguments of type RelSubset

Modifier and Type	Method and Description
(package private) Set<RelSubset>	RelSubset.getParentSubsets(VolcanoPlanner planner) Returns the collection of distinct subsets that contain a RelNode one of whose inputs is in this subset.
private static List<RelSubset>	RelSubset.inputSubsets(RelNode parent)

Methods in org.apache.calcite.plan.volcano with parameters of type RelSubset

Modifier and Type	Method and Description
private void	RelSet.addAbstractConverters(VolcanoPlanner planner, RelOptCluster cluster, RelSubset subset, boolean subsetToOthers)
private RelSubset	VolcanoPlanner.canonize(RelSubset subset) If a subset has one or more equivalent subsets (owing to a set having merged with another), returns the subset which is the leader of the equivalence class.
int	RuleQueue.RelImportanceComparator.compare(RelSubset rel1, RelSubset rel2)
(package private) double	RuleQueue.computeImportance(RelSubset subset) Computes the importance of a node.
private double	RuleQueue.computeImportanceOfChild(RelMetadataQuery mq, RelSubset child, RelSubset parent) Returns the importance of a child to a parent.
(package private) double	RuleQueue.getImportance(RelSubset rel) Returns the importance of an equivalence class of relational expressions.
void	RuleQueue.recompute(RelSubset subset) Equivalent to recompute(subset, false).
void	RuleQueue.recompute(RelSubset subset, boolean force) Recomputes the importance of the given RelSubset.
private RelSubset	VolcanoPlanner.registerSubset(RelSet set, RelSubset subset)
(package private) void	RuleQueue.updateImportance(RelSubset subset, Double importance)

Method parameters in org.apache.calcite.plan.volcano with type arguments of type RelSubset

Modifier and Type	Method and Description
void	RuleQueue.boostImportance(Collection<RelSubset> subsets, double factor) Artificially boosts the importance of the given RelSubsets by a given factor.
private void	RuleQueue.checkDuplicateSubsets(Deque<RelSubset> subsets, RelOptRuleOperand operand, RelNode[] rels) Recursively checks whether there are any duplicate subsets along any path from root of the operand tree to one of the leaves.
(package private) void	RelSubset.propagateCostImprovements(VolcanoPlanner planner, RelMetadataQuery mq, RelNode rel, Set<RelSubset> activeSet) Checks whether a relexp has made its subset cheaper, and if it so, recursively checks whether that subset's parents have gotten cheaper.
(package private) void	RelSubset.propagateCostImprovements0(VolcanoPlanner planner, RelMetadataQuery mq, RelNode rel, Set<RelSubset> activeSet)

Constructors in org.apache.calcite.plan.volcano with parameters of type RelSubset

Constructor and Description
AbstractConverter(RelOptCluster cluster, RelSubset rel, RelTraitDef traitDef, RelTraitSet traits)

Uses of RelSubset in org.apache.calcite.rel.metadata

Methods in org.apache.calcite.rel.metadata with parameters of type RelSubset

Modifier and Type	Method and Description
Boolean	RelMdColumnUniqueness.areColumnsUnique(RelSubset rel, RelMetadataQuery mq, ImmutableBitSet columns, boolean ignoreNulls)
com.google.common.collect.ImmutableList<RelCollation>	RelMdCollation.collations(RelSubset rel, RelMetadataQuery mq)
RelOptPredicateList	RelMdAllPredicates.getAllPredicates(RelSubset rel, RelMetadataQuery mq)
Double	RelMdDistinctRowCount.getDistinctRowCount(RelSubset rel, RelMetadataQuery mq, ImmutableBitSet groupKey, RexNode predicate)
Set<RexNode>	RelMdExpressionLineage.getExpressionLineage(RelSubset rel, RelMetadataQuery mq, RexNode outputExpression)
Double	RelMdMaxRowCount.getMaxRowCount(RelSubset rel, RelMetadataQuery mq)
Double	RelMdMinRowCount.getMinRowCount(RelSubset rel, RelMetadataQuery mq)
com.google.common.collect.Multimap<Class<? extends RelNode>,RelNode>	RelMdNodeTypes.getNodeTypes(RelSubset rel, RelMetadataQuery mq)
RelOptPredicateList	RelMdPredicates.getPredicates(RelSubset r, RelMetadataQuery mq)
Double	RelMdRowCount.getRowCount(RelSubset subset, RelMetadataQuery mq)
Set<RexTableInputRef.RelTableRef>	RelMdTableReferences.getTableReferences(RelSubset rel, RelMetadataQuery mq)