"Susy Ham" <sham@xxxxxxxxxxx> writes: > We are trying to perform a 'reindex database' and it will fail at > varying points with a message like: > ERROR: could not open relation with OID 587495058 > or > ERROR: could not open relation with OID 587603875 Ugh :-( > When we queried pg_class we got no rows returned: > select oid,* from pg_class where oid in (587603875, 587495058); Indeed not, since the error message is complaining exactly that it couldn't find any such pg_class row. What you need to be looking into is where the reference to the OID came from. I'd try looking into pg_index and maybe pg_depend to see if there are rows linking to these OIDs. Also, in a message of this sort you really oughta expand a bit on your reasons for needing a 'reindex database' in the first place, and the procedure you are using for it. If you are trying to recover from system catalog corruption then there's a number of subtle tricks to use --- the main one being to run the backend with -P (which means "don't trust the system indexes"). While I'm asking for specifics: exactly which PG version is this? regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend