In response to "Philippe Lang" <philippe.l...@attiksystem.ch>: > > I'm using Postgresql 8.3.6 under Freebsd 7.1. > > After a fresh restore of a customer dump (running version 8.2.7 at the > moment), a rather big query executes in about 30 seconds. As soon as I > run ANALYZE, it is instantly 4-5 times slower. I could check that > multiples times. > > Here is the EXPLAIN ANALYZE before the ANALYZE: > http://www.attiksystem.ch/postgresql/query_slower_after_analyze/before.txt > > And here the the EXPLAIN ANALYZE after the ANALYZE: > http://www.attiksystem.ch/postgresql/query_slower_after_analyze/after.txt > > Any idea what could be turned on/off in order not to have this slowdown > after the ANALYZE?
I opened one of those links figuring I'd take a few minutes to see if I could muster up some advice ... and just started laughing ... definitely not the type of query that one can even understand in just a few minutes! Anyway, the real reason I posted -- I doubt if anyone will be able to make sense of a query plan that complex without the actual query, so you'll probably want to post it as well. -- Bill Moran http://www.potentialtech.com http://people.collaborativefusion.com/~wmoran/ - Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
