SHARMILA JOTHIRAJAH <sharmi_jo@yahoo.com> writes:
> pg_dump: failed sanity check, parent table OID 670739 of pg_rewrite entry OID 670741 not found
> What causes this problem?
Corrupt system tables, looks like :-( What PG version is this?
I would suggest checking to see if either of those OIDs appears in
either the objid or refobjid columns of pg_depend. If not, the
most likely theory is that this pg_rewrite entry somehow didn't
get deleted when its parent table was dropped. You could just
delete it manually, eg,
delete from pg_rewrite where oid = 670741;
If you do find other traces of the table it might be better to try
to resurrect the table (actually it's most likely a view not a
table).
regards, tom lane