am Tue, dem 29.08.2006, um 15:52:50 +0200 mailte Willo van der Merwe folgendes: > and it has 743321 rows and a explain analyze select count(*) from > property_values; > QUERY > PLAN > ---------------------------------------------------------------------------------------------------------------------------------- > Aggregate (cost=55121.95..55121.96 rows=1 width=0) (actual time= > 4557.797..4557.798 rows=1 loops=1) > -> Seq Scan on property_values (cost=0.00..51848.56 rows=1309356 width=0) > (actual time=0.026..2581.418 rows=1309498 loops=1) > Total runtime: 4557.978 ms > (3 rows) > > 4 1/2 seconds for a count(*) ? This seems a bit rough - is there anything else
Because of MVCC. http://www.thescripts.com/forum/thread173678.html http://www.varlena.com/GeneralBits/120.php http://www.varlena.com/GeneralBits/49.php Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47215, 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
