Re: gaussian distribution pgbench

From: KONDO Mitsumasa <kondo(dot)mitsumasa(at)lab(dot)ntt(dot)co(dot)jp>
To: Robert Haas <robertmhaas(at)gmail(dot)com>, Mitsumasa KONDO <kondo(dot)mitsumasa(at)gmail(dot)com>
Cc: Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: gaussian distribution pgbench
Date: 2014-03-18 08:58:55
Message-ID: 53280ACF.1050909@lab.ntt.co.jp
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(2014/03/17 23:29), Robert Haas wrote:
> On Sat, Mar 15, 2014 at 4:50 AM, Mitsumasa KONDO
> <kondo(dot)mitsumasa(at)gmail(dot)com> wrote:
>>> There are explanations and computations as comments in the code. If it is
>>> about the documentation, I'm not sure that a very precise mathematical
>>> definition will help a lot of people, and might rather hinder understanding,
>>> so the doc focuses on an intuitive explanation instead.
>>
>> Yeah, I think that we had better to only explain necessary infomation for
>> using this feature. If we add mathematical theory in docs, it will be too
>> difficult for user. And it's waste.
>
> Well, if you *don't* include at least *some* mathematical description
> of what the feature does in the documentation, then users who need to
> understand it will have to read the source code to figure it out,
> which is going to be even more difficult.
I had fixed this problem. Please see the v12 patch. I think it doesn't includ
mathematical
description, but user will be able to understand intuitive from the explanation
of document.
Regards,
--
Mitsumasa KONDO
NTT Open Source Software Center

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