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Re: Slow query after upgrade from 8.2 to 8.4 - Mailing list pgsql-performance

From Tom Lane
Subject Re: Slow query after upgrade from 8.2 to 8.4
Date
Msg-id 14557.1323401295@sss.pgh.pa.us
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In response to Slow query after upgrade from 8.2 to 8.4  (Kaloyan Iliev Iliev <kaloyan@digsys.bg>)
Responses Re: Slow query after upgrade from 8.2 to 8.4
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Kaloyan Iliev Iliev <kaloyan@digsys.bg> writes:
> We recently upgrade our server from PG8.2 to 8.4.
> ...
> Here I will post explain analyze. If you think it is necessary I will
> post the exact query:
> http://explain.depesz.com/s/J0O

Yeah, you need to show the query.  It looks like the performance problem
is stemming from a lot of subselects, but it's not clear why 8.4 would
be handling those worse than 8.2.

            regards, tom lane

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