Carl von Clausewitz <clausewitz45@xxxxxxxxx> writes: >>> sqlstate=23505ERROR: duplicate key value violates unique constraint >>> "pg_index_indexrelid_index" >>> sqlstate=23505DETAIL: Key (indexrelid)=(2678) already exists. After a considerable amount of fooling around I've been able to reproduce this and identify the cause: http://archives.postgresql.org/pgsql-hackers/2011-04/msg00777.php A real fix will be forthcoming in the next update releases (not Monday's updates, unfortunately; too late for that). In the meantime, it appears that the problem can only be triggered by a sequence that involves *both* REINDEX and VACUUM FULL on pg_index. Since, as I mentioned before, a separate reindex step is completely useless when using 9.0's VACUUM FULL, removing the reindex step from your maintenance script should be an adequate workaround. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general