Re: xlog location arithmetic

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Euler Taveira de Oliveira <euler(at)timbira(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: xlog location arithmetic
Date: 2012-03-09 17:18:24
Message-ID: 1601.1331313504@sss.pgh.pa.us
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Magnus Hagander <magnus(at)hagander(dot)net> writes:
> On Fri, Mar 9, 2012 at 15:37, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Why would it be useful to use pg_size_pretty on xlog locations?
>> -1 because of the large expense of bigint->numeric->whatever conversion
>> that would be added to existing uses.

> Given the expense, perhaps we need to different (overloaded) functions instead?

That would be a workable solution, but I continue to not believe that
this is useful enough to be worth the trouble.

regards, tom lane

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