Re: Large (almost 50%!) performance drop after upgrading to 8.4.4?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Max Williams <Max(dot)Williams(at)mflow(dot)com>
Cc: "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Large (almost 50%!) performance drop after upgrading to 8.4.4?
Date: 2010-06-10 15:46:25
Message-ID: 17509.1276184785@sss.pgh.pa.us
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Max Williams <Max(dot)Williams(at)mflow(dot)com> writes:
> Ah, yes its OFF for 8.4.3 and ON for 8.4.4!

Hah.

> Can I just turn this off on 8.4.4 or is it a compile time option?

Well, you can turn it off, but that will only buy back part of the
cost (and not even the bigger part, I believe).

> Also is this a mistake or intended? Perhaps I should tell the person who builds the pgdg packages??

Yes, the folks at commandprompt need to be told about this. Loudly.
It's a serious packaging error.

regards, tom lane

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