Re: Postgres 8.3, four times slower queries?

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "Aaron Guyon" <battlemage(at)gmail(dot)com>, <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Postgres 8.3, four times slower queries?
Date: 2009-03-05 18:57:20
Message-ID: 49AFCC30.EE98.0025.0@wicourts.gov
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>>> Aaron Guyon <battlemage(at)gmail(dot)com> wrote:
> 8.3.3: 1195 ms
> 8.2.12: 611 ms

Could you send the non-commented lines from the postgresql.conf files
from both installations?

If feasible, update to the latest bug-fix version of 8.3.

Also, if you haven't already done so, try setting effective_cache_size
= '3GB' and random_page_cost = 2 for the 8.3 database and restart to
see what kind of plan you get.

-Kevin

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