duckdb::RelationManager Class Reference

Collaboration diagram for duckdb::RelationManager:

Public Member Functions
	RelationManager (ClientContext &context)
idx_t	NumRelations ()
bool	ExtractJoinRelations (JoinOrderOptimizer &optimizer, LogicalOperator &input_op, vector< reference< LogicalOperator > > &filter_operators, optional_ptr< LogicalOperator > parent=nullptr)
vector< unique_ptr< FilterInfo > >	ExtractEdges (LogicalOperator &op, vector< reference< LogicalOperator > > &filter_operators, JoinRelationSetManager &set_manager)
bool	ExtractBindings (Expression &expression, unordered_set< idx_t > &bindings)
	Extract the set of relations referred to inside an expression.
void	AddRelation (LogicalOperator &op, optional_ptr< LogicalOperator > parent, const RelationStats &stats)
void	AddRelationWithChildren (JoinOrderOptimizer &optimizer, LogicalOperator &op, LogicalOperator &input_op, optional_ptr< LogicalOperator > parent, RelationStats &child_stats, optional_ptr< LogicalOperator > limit_op, vector< reference< LogicalOperator > > &datasource_filters)
	Add an unnest relation which can come from a logical unnest or a logical get which has an unnest function.
void	AddAggregateOrWindowRelation (LogicalOperator &op, optional_ptr< LogicalOperator > parent, const RelationStats &stats, LogicalOperatorType op_type)
vector< unique_ptr< SingleJoinRelation > >	GetRelations ()
const vector< RelationStats >	GetRelationStats ()
bool	CrossProductWithRelationAllowed (idx_t relation_id)
void	PrintRelationStats ()

Public Attributes
unordered_map< idx_t, idx_t >	relation_mapping
	A mapping of base table index -> index into relations array (relation number)

Private Attributes
ClientContext &	context
vector< unique_ptr< SingleJoinRelation > >	relations
	Set of all relations considered in the join optimizer.
unordered_set< idx_t >	no_cross_product_relations

Constructor & Destructor Documentation

RelationManager()

duckdb::RelationManager::RelationManager ( ClientContext &  context )

inlineexplicit

                                                     : context(context) {
    }

Member Function Documentation

ExtractEdges()

vector< unique_ptr< FilterInfo > > duckdb::RelationManager::ExtractEdges	(	LogicalOperator &	op,
		vector< reference< LogicalOperator > > &	filter_operators,
		JoinRelationSetManager &	set_manager
	)

for each join filter in the logical plan op, extract the relations that are referred to on both sides of the join filter, along with the tables & indexes.

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The documentation for this class was generated from the following file:

• external/duckdb/duckdb.hpp