2009/8/18 Slava Moudry <smoudry@xxxxxxxxx>: >> increase default stats target, analyze, try again. > This field has only 5 values. I had put values/frequencies in my first post. Sorry, kinda missed that. Anyway, there's no way for pg to know which operation is gonna match. Without an index on it. So my guess is that it just guesses some fixed value. With an index it might be able to get it right, but you'll need an index for each type of match you're looking for. I think. Maybe someone else on the list has a better idea. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance