thank you all for your help. finally the big table had many more rows(2 billions) than the stats showed so there is no "weird" thing going on. -- View this message in context: http://postgresql.1045698.n5.nabble.com/weird-table-sizes-tp4626505p4630238.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general