PostgreSQL Source Code  git master
Public Member Functions | Data Fields
EquivalenceClass Struct Reference

#include <pathnodes.h>

Public Member Functions

 pg_node_attr (custom_read_write, no_copy_equal, no_read) NodeTag type
 

Data Fields

List * ec_opfamilies
 
Oid ec_collation
 
List * ec_members
 
List * ec_sources
 
List * ec_derives
 
Relids ec_relids
 
bool ec_has_const
 
bool ec_has_volatile
 
bool ec_below_outer_join
 
bool ec_broken
 
Index ec_sortref
 
Index ec_min_security
 
Index ec_max_security
 
struct EquivalenceClass * ec_merged
 

Detailed Description

Definition at line 1289 of file pathnodes.h.

Member Function Documentation

◆ pg_node_attr()

EquivalenceClass::pg_node_attr ( custom_read_write  ,
no_copy_equal  ,
no_read   
)

Field Documentation

◆ ec_below_outer_join

bool EquivalenceClass::ec_below_outer_join

Definition at line 1304 of file pathnodes.h.

Referenced by generate_base_implied_equalities_const(), generate_base_implied_equalities_no_const(), get_eclass_for_sort_expr(), and process_equivalence().

◆ ec_broken

bool EquivalenceClass::ec_broken

Definition at line 1305 of file pathnodes.h.

Referenced by generate_base_implied_equalities(), generate_base_implied_equalities_const(), generate_base_implied_equalities_no_const(), generate_join_implied_equalities(), generate_join_implied_equalities_for_ecs(), generate_join_implied_equalities_normal(), get_eclass_for_sort_expr(), and process_equivalence().

◆ ec_collation

Oid EquivalenceClass::ec_collation

Definition at line 1296 of file pathnodes.h.

Referenced by convert_subquery_pathkeys(), create_join_clause(), ec_member_matches_indexcol(), generate_base_implied_equalities_const(), generate_base_implied_equalities_no_const(), get_eclass_for_sort_expr(), make_unique_from_pathkeys(), prepare_sort_from_pathkeys(), process_equivalence(), reconsider_full_join_clause(), and reconsider_outer_join_clause().

◆ ec_derives

List* EquivalenceClass::ec_derives

Definition at line 1299 of file pathnodes.h.

Referenced by create_join_clause(), find_derived_clause_for_ec_member(), generate_base_implied_equalities_const(), get_eclass_for_sort_expr(), and process_equivalence().

◆ ec_has_const

bool EquivalenceClass::ec_has_const

Definition at line 1302 of file pathnodes.h.

Referenced by add_eq_member(), find_derived_clause_for_ec_member(), generate_base_implied_equalities(), generate_base_implied_equalities_broken(), generate_implied_equalities_for_column(), generate_join_implied_equalities(), generate_join_implied_equalities_for_ecs(), get_eclass_for_sort_expr(), get_foreign_key_join_selectivity(), match_foreign_keys_to_quals(), process_equivalence(), reconsider_full_join_clause(), and reconsider_outer_join_clause().

◆ ec_has_volatile

bool EquivalenceClass::ec_has_volatile

Definition at line 1303 of file pathnodes.h.

Referenced by add_child_join_rel_equivalences(), add_child_rel_equivalences(), add_foreign_ordered_paths(), convert_subquery_pathkeys(), exprs_known_equal(), get_eclass_for_sort_expr(), is_foreign_pathkey(), make_unique_from_pathkeys(), match_eclasses_to_foreign_key_col(), prepare_sort_from_pathkeys(), process_equivalence(), reconsider_full_join_clause(), reconsider_outer_join_clause(), and relation_can_be_sorted_early().

◆ ec_max_security

Index EquivalenceClass::ec_max_security

Definition at line 1308 of file pathnodes.h.

Referenced by get_eclass_for_sort_expr(), process_equivalence(), and select_equality_operator().

◆ ec_members

List* EquivalenceClass::ec_members

Definition at line 1297 of file pathnodes.h.

Referenced by add_child_join_rel_equivalences(), add_child_rel_equivalences(), add_eq_member(), convert_subquery_pathkeys(), exprs_known_equal(), find_computable_ec_member(), find_ec_member_matching_expr(), find_em_for_rel(), find_em_for_rel_target(), generate_base_implied_equalities(), generate_base_implied_equalities_const(), generate_base_implied_equalities_no_const(), generate_implied_equalities_for_column(), generate_join_implied_equalities(), generate_join_implied_equalities_for_ecs(), generate_join_implied_equalities_normal(), get_eclass_for_sort_expr(), has_relevant_eclass_joinclause(), have_relevant_eclass_joinclause(), make_unique_from_pathkeys(), match_eclasses_to_foreign_key_col(), prepare_sort_from_pathkeys(), process_equivalence(), reconsider_full_join_clause(), reconsider_outer_join_clause(), and select_outer_pathkeys_for_merge().

◆ ec_merged

struct EquivalenceClass* EquivalenceClass::ec_merged

Definition at line 1309 of file pathnodes.h.

Referenced by _outEquivalenceClass(), generate_base_implied_equalities(), get_eclass_for_sort_expr(), and process_equivalence().

◆ ec_min_security

Index EquivalenceClass::ec_min_security

Definition at line 1307 of file pathnodes.h.

Referenced by create_join_clause(), generate_base_implied_equalities_const(), generate_base_implied_equalities_no_const(), get_eclass_for_sort_expr(), process_equivalence(), reconsider_full_join_clause(), and reconsider_outer_join_clause().

◆ ec_opfamilies

List* EquivalenceClass::ec_opfamilies

Definition at line 1295 of file pathnodes.h.

Referenced by convert_subquery_pathkeys(), ec_member_matches_indexcol(), get_eclass_for_sort_expr(), get_useful_pathkeys_for_relation(), match_eclasses_to_foreign_key_col(), process_equivalence(), reconsider_full_join_clause(), reconsider_outer_join_clause(), select_equality_operator(), and select_outer_pathkeys_for_merge().

◆ ec_relids

Relids EquivalenceClass::ec_relids

Definition at line 1300 of file pathnodes.h.

Referenced by add_child_join_rel_equivalences(), add_child_rel_equivalences(), add_eq_member(), generate_base_implied_equalities(), generate_base_implied_equalities_const(), generate_base_implied_equalities_no_const(), generate_implied_equalities_for_column(), generate_join_implied_equalities(), generate_join_implied_equalities_for_ecs(), get_eclass_for_sort_expr(), has_relevant_eclass_joinclause(), have_relevant_eclass_joinclause(), and process_equivalence().

◆ ec_sortref

Index EquivalenceClass::ec_sortref

Definition at line 1306 of file pathnodes.h.

Referenced by convert_subquery_pathkeys(), get_eclass_for_sort_expr(), make_unique_from_pathkeys(), prepare_sort_from_pathkeys(), and process_equivalence().

◆ ec_sources

List* EquivalenceClass::ec_sources

Definition at line 1298 of file pathnodes.h.

Referenced by create_join_clause(), generate_base_implied_equalities_broken(), generate_base_implied_equalities_const(), generate_join_implied_equalities_broken(), get_eclass_for_sort_expr(), and process_equivalence().

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