diff options
| author | Nathan Bossart <nathan@postgresql.org> | 2025-06-30 15:38:54 -0500 |
|---|---|---|
| committer | Nathan Bossart <nathan@postgresql.org> | 2025-06-30 15:38:54 -0500 |
| commit | bd09f024a1bbdd7a7e2ca944595a9d4b6c90fb83 (patch) | |
| tree | c1dd8158c0ea270884fae796dd61dc3405ac249b /contrib/postgres_fdw/deparse.c | |
| parent | f20a347e1a613cfc9053e7bc3d254608ae968386 (diff) | |
Add new OID alias type regdatabase.
This provides a convenient way to look up a database's OID. For
example, the query
SELECT * FROM pg_shdepend
WHERE dbid = (SELECT oid FROM pg_database
WHERE datname = current_database());
can now be simplified to
SELECT * FROM pg_shdepend
WHERE dbid = current_database()::regdatabase;
Like the regrole type, regdatabase has cluster-wide scope, so we
disallow regdatabase constants from appearing in stored
expressions.
Bumps catversion.
Author: Ian Lawrence Barwick <barwick@gmail.com>
Reviewed-by: Greg Sabino Mullane <htamfids@gmail.com>
Reviewed-by: Jian He <jian.universality@gmail.com>
Reviewed-by: FabrÃzio de Royes Mello <fabriziomello@gmail.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/aBpjJhyHpM2LYcG0%40nathan
Diffstat (limited to 'contrib/postgres_fdw/deparse.c')
| -rw-r--r-- | contrib/postgres_fdw/deparse.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/contrib/postgres_fdw/deparse.c b/contrib/postgres_fdw/deparse.c index d9970dd6753..9351835b5e4 100644 --- a/contrib/postgres_fdw/deparse.c +++ b/contrib/postgres_fdw/deparse.c @@ -39,6 +39,7 @@ #include "catalog/pg_aggregate.h" #include "catalog/pg_authid.h" #include "catalog/pg_collation.h" +#include "catalog/pg_database.h" #include "catalog/pg_namespace.h" #include "catalog/pg_operator.h" #include "catalog/pg_opfamily.h" @@ -455,6 +456,11 @@ foreign_expr_walker(Node *node, AuthIdRelationId, fpinfo)) return false; break; + case REGDATABASEOID: + if (!is_shippable(DatumGetObjectId(c->constvalue), + DatabaseRelationId, fpinfo)) + return false; + break; } } |