We currently have a DB (8.3.7) in production that seem to be taking up more space on the HDD than was anticipated.
After looking into the the data directory a particular file/oid is around 21 GB (the oid has 21 files), this OID can then be found in the pg_class table, the explanation for the size being that the table has around 12.5 Million rows. During the inspection of the data directory I observed another OID that is around 8.5GB, but I cannot locate the corresponding entry in the pg_class table (even after dumping the table into a file and grep-ing for the OID in question).
Any other ideas for finding what the mystery OID is ?
Thanks in advance,
Andy