Philippe Lang wrote:
Hi,
For an unknown reason, I cannot post this message to the mailing-list!
Here it is:
http://www.attiksystem.ch/postgresql-general.txt
Please post query and table structure as well. And since you are using a
medium with no limitation on line lenght, unwrap the query plan.
EXPLAIN ANALYZE output would more useful. Indeed, PG 8 believes it has
found a "better" plan than 7.4, costing only ~1.1 million units
(although these are probably not directly comparable).
Memory settings might be relevant - you may be comparing a vanilla
installation of 8.1 with a "tuned" 7.4.
/Nis
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TIP 6: explain analyze is your friend
