On 12/06/2011 09:00 PM, Tom Lane wrote: > Mario Splivalo <mario.splivalo@xxxxxxxxxx> writes: >> I have 8.4.8 on producion and 8.4.9 on test, could that explain the >> difference in plans chosen? > > I'd wonder first if you have the same statistics settings on both. > The big problem here is that the estimation of the join size is bad > (8588 versus 0). They do, I guess. I did rsync postgres datadir from the prod server to the test server. The only difference is that prod server was a bit more loaded than the test server. Mario -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance