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From: Russell Smith <mr-russ@pws.com.au>
To: Kim <kim@myemma.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: unusual performance for vac following 8.2 upgrade
Date: Fri, 12 Jan 2007 05:07:23 +1100
Message-ID: <45A67CDB.1000706@pws.com.au> (raw)
In-Reply-To: <45A671CD.1050706@myemma.com>
References: <45A671CD.1050706@myemma.com>

Kim wrote:

<snip>
> OS: Solaris 10
> write transactions/hr: 1.5 million
> size of pg_class: 535,226
> number of relations: 108,694
>
That is a huge pg_class.  I remember some discussion recently about 
problems with 8.2 and the way it scans pg_class.  I also believe it's 
fixed in 8.2.1.  Are you running that.  If not, I suggest you upgrade 
and see if the fault still exists.

Regards

Russell Smith
> Thanks to all,
>
> Kim
>
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