On Fri, Jun 22, 2012 at 01:27:51PM -0400, Tom Lane wrote: - David Kerr <dmk@xxxxxxxxxxxxxx> writes: - > I'm trying to work through a root cause on a performance problem. I'd like to - > be able to "show" that a problem was fixed by analyzing the table. - - > what i've done is - > set default_statistics_target=1 - > analyze <Table> - - > That gets rid of most of the rows in pg_stats, but i'm still getting decent performance. - - I usually do something like - - DELETE FROM pg_statistic WHERE starelid = 'foo'::regclass; - - (you need to be superuser to be allowed to do this). - - You may need to keep an eye on whether auto-analyze is coming along and - undoing what you did, too. - - regards, tom lane - Awesome, thanks! Dave -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
