| From: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
|---|---|
| To: | fburgess(at)radiantblue(dot)com |
| Cc: | Jaime Casanova <jaime(at)2ndquadrant(dot)com>, psql performance list <pgsql-performance(at)postgresql(dot)org>, Postgres General <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: [PERFORM] Very slow inner join query Unacceptable latency. |
| Date: | 2013-05-24 06:16:16 |
| Message-ID: | CAOR=d=1kwJn7rCWOH=XmvwGEWERCeYD3xnjbj4EGvTVWaoijSQ@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-general pgsql-performance |
Looking at the execution plan makes me wonder what your work_mem is
set to. Try cranking it up to test and lowering random_page_cost:
set work_mem='500MB';
set random_page_cost=1.2;
explain analyze select ...
and see what you get.
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