am Wed, dem 11.07.2007, um 22:19:58 +0200 mailte Andreas Kretschmer folgendes: > > Also, part of the problem here looks to be an overestimate of the number > > of rows matching ab = 347735. It might help to increase the statistics > > target for that column. > > I will try this tomorrow and inform you about the result. I've never > done this before, i need to read the docs about this.
Okay, done, setting to 100 (thanks to mastermind) and now i got an Index Scan using idx_ab with a total runtime: 0.330 ms. Great, thanks. And yes, i will update soon... Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header) GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend