Il giorno mar, 16/06/2009 alle 15.58 +0100, Matthew Wakeling ha scritto: > On Tue, 16 Jun 2009, Alberto Dalmaso wrote: > >> What does your postgresql.conf file look like? > > > enable_hashjoin = off > > enable_nestloop = off > > enable_seqscan = off > > enable_sort = off > > Why are these switched off? > because of the need to pump up the performance of the complex query. If I set then to on then it try to use nasted loop even in the complex query and that query does never arrive to a response.... and, of course, I need a response from it!!! So my problem is to find a configuration taht save performance for all the two kind of query, but I'm not abble to find it. Move to parameters of the RAM can save a 10% of the time in the complex query, wile I have no changes on the simple one... -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance