On 2013-06-04 11:29:44 +0900, Amit Langote wrote: > In what cases can a relation use more buffers (in shared memory) than > its pg_class.relpages? relpages is primarily updated by (auto-)vacuum, (auto-)analyze, so it frequently lags behind reality in a growing relation. Why do you need an exact value? Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general