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 /src/backend/bootstrap/bootstrap.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 'src/backend/bootstrap/bootstrap.c')
| -rw-r--r-- | src/backend/bootstrap/bootstrap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/backend/bootstrap/bootstrap.c b/src/backend/bootstrap/bootstrap.c index 6db864892d0..fc8638c1b61 100644 --- a/src/backend/bootstrap/bootstrap.c +++ b/src/backend/bootstrap/bootstrap.c @@ -109,6 +109,8 @@ static const struct typinfo TypInfo[] = { F_REGROLEIN, F_REGROLEOUT}, {"regnamespace", REGNAMESPACEOID, 0, 4, true, TYPALIGN_INT, TYPSTORAGE_PLAIN, InvalidOid, F_REGNAMESPACEIN, F_REGNAMESPACEOUT}, + {"regdatabase", REGDATABASEOID, 0, 4, true, TYPALIGN_INT, TYPSTORAGE_PLAIN, InvalidOid, + F_REGDATABASEIN, F_REGDATABASEOUT}, {"text", TEXTOID, 0, -1, false, TYPALIGN_INT, TYPSTORAGE_EXTENDED, DEFAULT_COLLATION_OID, F_TEXTIN, F_TEXTOUT}, {"oid", OIDOID, 0, 4, true, TYPALIGN_INT, TYPSTORAGE_PLAIN, InvalidOid, |