diff options
Diffstat (limited to 'src/backend/access')
| -rw-r--r-- | src/backend/access/transam/xact.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/backend/access/transam/xact.c b/src/backend/access/transam/xact.c index f665e38ecfc..18467d96d28 100644 --- a/src/backend/access/transam/xact.c +++ b/src/backend/access/transam/xact.c @@ -2279,6 +2279,18 @@ PrepareTransaction(void) errmsg("cannot PREPARE a transaction that has operated on temporary tables"))); /* + * Similarly, PREPARE TRANSACTION is not allowed if the temporary + * namespace has been involved in this transaction as we cannot allow it + * to create, lock, or even drop objects within the temporary namespace + * as this can mess up with this session or even a follow-up session + * trying to use the same temporary namespace. + */ + if ((MyXactFlags & XACT_FLAGS_ACCESSEDTEMPNAMESPACE)) + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("cannot PREPARE a transaction that has operated on temporary namespace"))); + + /* * Likewise, don't allow PREPARE after pg_export_snapshot. This could be * supported if we added cleanup logic to twophase.c, but for now it * doesn't seem worth the trouble. |