diff options
Diffstat (limited to 'src/backend/catalog/pg_inherits.c')
| -rw-r--r-- | src/backend/catalog/pg_inherits.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/backend/catalog/pg_inherits.c b/src/backend/catalog/pg_inherits.c index 17f37eb39f3..5145a569a81 100644 --- a/src/backend/catalog/pg_inherits.c +++ b/src/backend/catalog/pg_inherits.c @@ -3,8 +3,8 @@ * pg_inherits.c * routines to support manipulation of the pg_inherits relation * - * Note: currently, this module only contains inquiry functions; the actual - * creation and deletion of pg_inherits entries is done in tablecmds.c. + * Note: currently, this module mostly contains inquiry functions; actual + * creation and deletion of pg_inherits entries is mostly done in tablecmds.c. * Perhaps someday that code should be moved here, but it'd have to be * disentangled from other stuff such as pg_depend updates. * @@ -278,9 +278,11 @@ has_subclass(Oid relationId) } /* - * has_superclass - does this relation inherit from another? The caller - * should hold a lock on the given relation so that it can't be concurrently - * added to or removed from an inheritance hierarchy. + * has_superclass - does this relation inherit from another? + * + * Unlike has_subclass, this can be relied on to give an accurate answer. + * However, the caller must hold a lock on the given relation so that it + * can't be concurrently added to or removed from an inheritance hierarchy. */ bool has_superclass(Oid relationId) |