tenk2 | t
(53 rows)
+--
+-- another sanity check: every system catalog that has OIDs should have
+-- a unique index on OID. This ensures that the OIDs will be unique,
+-- even after the OID counter wraps around.
+-- We exclude non-system tables from the check by looking at nspname.
+--
+SELECT relname, nspname
+FROM pg_class c LEFT JOIN pg_namespace n ON n.oid = relnamespace
+WHERE relhasoids
+ AND ((nspname ~ '^pg_') IS NOT FALSE)
+ AND NOT EXISTS (SELECT 1 FROM pg_index i WHERE indrelid = c.oid
+ AND indkey[0] = -2 AND indkey[1] = 0 AND indisunique);
+ relname | nspname
+---------+---------
+(0 rows)
+
-
VACUUM;
+
--
-- sanity check, if we don't have indices the test will take years to
-- complete. But skip TOAST relations since they will have varying
WHERE relhasindex AND relkind != 't'
ORDER BY relname;
+--
+-- another sanity check: every system catalog that has OIDs should have
+-- a unique index on OID. This ensures that the OIDs will be unique,
+-- even after the OID counter wraps around.
+-- We exclude non-system tables from the check by looking at nspname.
+--
+SELECT relname, nspname
+FROM pg_class c LEFT JOIN pg_namespace n ON n.oid = relnamespace
+WHERE relhasoids
+ AND ((nspname ~ '^pg_') IS NOT FALSE)
+ AND NOT EXISTS (SELECT 1 FROM pg_index i WHERE indrelid = c.oid
+ AND indkey[0] = -2 AND indkey[1] = 0 AND indisunique);