Re: Problem with planner - Mailing list pgsql-general

From Tom Lane
Subject Re: Problem with planner
Date
Msg-id 27740.1312822300@sss.pgh.pa.us
Whole thread Raw
In response to Problem with planner  (hubert depesz lubaczewski <depesz@depesz.com>)
Responses Re: Problem with planner  (hubert depesz lubaczewski <depesz@depesz.com>)
List pgsql-general
hubert depesz lubaczewski <depesz@depesz.com> writes:
> and we have a query:
> select count(*) from objects where state='active'::text and ending_tsz <= ( select now() - '1 day'::interval );

Try getting rid of the sub-select.  There might have been a reason to do
it like that ten years ago, but these days it's a guaranteed
pessimization.

            regards, tom lane

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