Predicate Struct Reference

A filter of some sort that is not a join condition (those are stored in JoinPredicate objects). More...

#include <access_path.h>

Public Attributes
Item *	condition
hypergraph::NodeMap	used_nodes
hypergraph::NodeMap	total_eligibility_set
double	selectivity
bool	was_join_condition = false
int	source_multiple_equality_idx = -1
FunctionalDependencySet	functional_dependencies
Mem_root_array< int >	functional_dependencies_idx
Mem_root_array< ContainedSubquery >	contained_subqueries

Detailed Description

A filter of some sort that is not a join condition (those are stored in JoinPredicate objects).

AND conditions are typically split up into multiple Predicates.

Member Data Documentation

condition

Item* Predicate::condition

contained_subqueries

Mem_root_array<ContainedSubquery> Predicate::contained_subqueries

functional_dependencies

FunctionalDependencySet Predicate::functional_dependencies

functional_dependencies_idx

Mem_root_array<int> Predicate::functional_dependencies_idx

selectivity

double Predicate::selectivity

source_multiple_equality_idx

int Predicate::source_multiple_equality_idx = -1

total_eligibility_set

hypergraph::NodeMap Predicate::total_eligibility_set

used_nodes

hypergraph::NodeMap Predicate::used_nodes

was_join_condition

bool Predicate::was_join_condition = false

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

• sql/join_optimizer/access_path.h