diff options
Diffstat (limited to 'src/include/nodes/pathnodes.h')
| -rw-r--r-- | src/include/nodes/pathnodes.h | 35 |
1 files changed, 2 insertions, 33 deletions
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h index c7a415b23d8..14ef296ab72 100644 --- a/src/include/nodes/pathnodes.h +++ b/src/include/nodes/pathnodes.h @@ -724,7 +724,7 @@ typedef struct PartitionSchemeData *PartitionScheme; * populate these fields, for base rels; but someday they might be used for * join rels too: * - * unique_for_rels - list of UniqueRelInfo, each one being a set of other + * unique_for_rels - list of Relid sets, each one being a set of other * rels for which this one has been proven unique * non_unique_for_rels - list of Relid sets, each one being a set of * other rels for which we have tried and failed to prove @@ -963,7 +963,7 @@ typedef struct RelOptInfo /* * cache space for remembering if we have proven this relation unique */ - /* known unique for these other relid set(s) given in UniqueRelInfo(s) */ + /* known unique for these other relid set(s) */ List *unique_for_rels; /* known not unique for these set(s) */ List *non_unique_for_rels; @@ -3421,35 +3421,4 @@ typedef struct AggTransInfo bool initValueIsNull; } AggTransInfo; -/* - * UniqueRelInfo caches a fact that a relation is unique when being joined - * to other relation(s). - */ -typedef struct UniqueRelInfo -{ - pg_node_attr(no_copy_equal, no_read, no_query_jumble) - - NodeTag type; - - /* - * The relation in consideration is unique when being joined with this set - * of other relation(s). - */ - Relids outerrelids; - - /* - * The relation in consideration is unique when considering only clauses - * suitable for self-join (passed split_selfjoin_quals()). - */ - bool self_join; - - /* - * Additional clauses from a baserestrictinfo list that were used to prove - * the uniqueness. We cache it for the self-join checking procedure: a - * self-join can be removed if the outer relation contains strictly the - * same set of clauses. - */ - List *extra_clauses; -} UniqueRelInfo; - #endif /* PATHNODES_H */ |