| From: | Andreas Kretschmer <akretschmer(at)spamfence(dot)net> |
|---|---|
| To: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Speed up the query |
| Date: | 2013-12-01 12:27:02 |
| Message-ID: | 20131201122702.GA26157@tux |
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| Lists: | pgsql-performance |
Torsten Förtsch <torsten(dot)foertsch(at)gmx(dot)net> wrote:
> I'd try 2 things:
>
> 1) set work_mem to ~100Mb. You don't have to do that globally in
> postgresql.conf. You can set it for the current session only.
>
> set work_mem to '100MB';
>
> Then run your query.
>
> 2) change the common table expression to a subquery:
Yeah, agree.
Andreas
--
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