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Re: Reduction in WAL for UPDATEs

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Kenneth Marshall <ktm(at)rice(dot)edu>
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: Reduction in WAL for UPDATEs
Date: 2007-03-28 14:51:43
Message-ID: 24737.1175093503@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Kenneth Marshall <ktm(at)rice(dot)edu> writes:
> On Wed, Mar 28, 2007 at 09:46:30AM -0400, Tom Lane wrote:
>> Would it?  How wide is the "user and token" information?

> Sorry about the waste of time. I just noticed that the proposal is
> only for rows over 128 bytes. The token definition is:

> CREATE TABLE dspam_token_data (
>   uid smallint,
>   token bigint,
>   spam_hits int,
>   innocent_hits int,
>   last_hit date,
> );

> which is below the cutoff for the proposal.

Yeah, this illustrates my concern that the proposal is too narrowly
focused on a specific benchmark.

			regards, tom lane

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