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Re: pg_autovacuum vacuum cost variables patch

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Michael Paesold" <mpaesold(at)gmx(dot)at>
Cc: "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net>,"pgsql-patches" <pgsql-patches(at)postgresql(dot)org>
Subject: Re: pg_autovacuum vacuum cost variables patch
Date: 2004-10-26 16:06:54
Message-ID: 10053.1098806814@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-patches
"Michael Paesold" <mpaesold(at)gmx(dot)at> writes:
> And it seems it affects analyze much more than vacuum, at least if there is 
> *nothing* to vacuum... (2 seconds -> 8 seconds)

Fixed.  The original coding was charging a page fetch cost for each row
on each page that analyze looked at :-(

			regards, tom lane

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