On 8.5.2012 20:32, Antonio Goméz Soto wrote: >> > Do this on both machines to verify that >> > >> > SELECT relpages, reltuples FROM pg_class WHERE relname = 'cdr'; > Slow machine: > > relpages | reltuples > ----------+----------- > 400566 | 982321 > > Fast machine: > > relpages | reltuples > ----------+------------- > 62076 | 1.48375e+06 > > Yup, that's probably the culprit. The slow machine has to read 400000 pages while the fast one just 62000. Each page is 8kB, so this is 3GB vs. 500MB difference. T. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
