diff options
Diffstat (limited to 'src/backend/utils/cache/relcache.c')
| -rw-r--r-- | src/backend/utils/cache/relcache.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/src/backend/utils/cache/relcache.c b/src/backend/utils/cache/relcache.c index 63efc55f09e..5b6b7b809c0 100644 --- a/src/backend/utils/cache/relcache.c +++ b/src/backend/utils/cache/relcache.c @@ -5581,11 +5581,14 @@ RelationGetIdentityKeyBitmap(Relation relation) /* * RelationGetExclusionInfo -- get info about index's exclusion constraint * - * This should be called only for an index that is known to have an - * associated exclusion constraint. It returns arrays (palloc'd in caller's - * context) of the exclusion operator OIDs, their underlying functions' - * OIDs, and their strategy numbers in the index's opclasses. We cache - * all this information since it requires a fair amount of work to get. + * This should be called only for an index that is known to have an associated + * exclusion constraint or primary key/unique constraint using WITHOUT + * OVERLAPS. + + * It returns arrays (palloc'd in caller's context) of the exclusion operator + * OIDs, their underlying functions' OIDs, and their strategy numbers in the + * index's opclasses. We cache all this information since it requires a fair + * amount of work to get. */ void RelationGetExclusionInfo(Relation indexRelation, @@ -5649,7 +5652,10 @@ RelationGetExclusionInfo(Relation indexRelation, int nelem; /* We want the exclusion constraint owning the index */ - if (conform->contype != CONSTRAINT_EXCLUSION || + if ((conform->contype != CONSTRAINT_EXCLUSION && + !(conform->conperiod && ( + conform->contype == CONSTRAINT_PRIMARY + || conform->contype == CONSTRAINT_UNIQUE))) || conform->conindid != RelationGetRelid(indexRelation)) continue; |