Re: [Proposal] Allow users to specify multiple tables in VACUUM commands

From: Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>
To: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
Cc: "Bossart, Nathan" <bossartn(at)amazon(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: [Proposal] Allow users to specify multiple tables in VACUUM commands
Date: 2017-05-18 06:45:36
Message-ID: CAD21AoCS3kNNaZiCzqyJygdn_wt1iX+i6wT791DC3AfzVwhf6g@mail.gmail.com
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On Thu, May 18, 2017 at 3:19 PM, Michael Paquier
<michael(dot)paquier(at)gmail(dot)com> wrote:
> On Thu, May 18, 2017 at 2:59 PM, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
>> It seems to me that it's not good idea to forcibly set ANALYZE in
>> spite of ANALYZE option is not specified. One reason is that it would
>> make us difficult to grep it from such as server log. I think It's
>> better to use the same vacuum option to the all listed relations.
>
> Even now, if you use VACUUM without listing ANALYZE directly, with
> relation listing a set of columns, then ANALYZE is implied.

Oh.. I'd missed that behavior. Thanks!

> I agree
> with your point that the same options should be used for all the
> relations, and it seems to me that if at least one relation listed has
> a column list, then ANALYZE should be implied for all relations.

+1

Regards,

--
Masahiko Sawada
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center

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