Andrus wrote: >> - what's the size of the dataset relative to the RAM ? > > Db size is 7417 MB > relevant table sizes in desc by size order: > > 1 40595 dok 2345 MB > 2 1214 pg_shdepend 2259 MB > 6 1232 pg_shdepend_depender_index 795 MB > 7 1233 pg_shdepend_reference_index 438 MB These three are highly suspicious. They track dependencies between system object (so you can't drop function F because trigger T depends on it). http://www.postgresql.org/docs/8.3/static/catalog-pg-shdepend.html You've got 3.5GB of data there, which is a *lot* of dependencies. Try "SELECT count(*) FROM pg_shdepend". If it's not a million rows, then the table is bloated. Try (as postgres or some other db superuser) "vacuum full pg_shdepend" and a "reindex pg_shdepend". If it is a million rows, you'll need to find out why. Do you have a lot of temporary tables that aren't being dropped or something similar? -- Richard Huxton Archonet Ltd -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
