diff options
Diffstat (limited to 'src/backend/commands/vacuum.c')
| -rw-r--r-- | src/backend/commands/vacuum.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c index 93039678630..889737e26e6 100644 --- a/src/backend/commands/vacuum.c +++ b/src/backend/commands/vacuum.c @@ -318,7 +318,16 @@ get_rel_oids(Oid relid, const RangeVar *vacrel) /* Process a specific relation */ Oid relid; - relid = RangeVarGetRelid(vacrel, false); + /* + * Since we don't take a lock here, the relation might be gone, + * or the RangeVar might no longer refer to the OID we look up + * here. In the former case, VACUUM will do nothing; in the + * latter case, it will process the OID we looked up here, rather + * than the new one. Neither is ideal, but there's little practical + * alternative, since we're going to commit this transaction and + * begin a new one between now and then. + */ + relid = RangeVarGetRelid(vacrel, NoLock, false, false); /* Make a relation list entry for this guy */ oldcontext = MemoryContextSwitchTo(vac_context); |