From: Josh Berkus <josh@agliodbs.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-performance@postgresql.org
Subject: Re: HOT TOAST?
Date: Wed, 13 Feb 2008 15:07:13 -0800
Message-ID: <200802131507.13659.josh@agliodbs.com> (raw)
In-Reply-To: <20169.1202925879@sss.pgh.pa.us>
References: <200802130950.15431.josh@agliodbs.com>
<20169.1202925879@sss.pgh.pa.us>
Tom,
> The current TOAST code never does any updates, only inserts/deletes.
> But the HOT logic should be able to reclaim deleted rows early via
> pruning.
OK, so for a heavy update application we should still see a vacuum
reduction, even if most of the rows are 40k large?
Time to run some tests ...
--
--Josh
Josh Berkus
PostgreSQL @ Sun
San Francisco
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To: pgsql-performance@postgresql.org
Cc: josh@agliodbs.com, tgl@sss.pgh.pa.us
Subject: Re: HOT TOAST?
In-Reply-To: <200802131507.13659.josh@agliodbs.com>
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