Re: reloption to prevent VACUUM from truncating empty pages at theend of relation

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От Masahiko Sawada
Тема Re: reloption to prevent VACUUM from truncating empty pages at theend of relation
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Msg-id CAD21AoCkdK5zaFt8xnwmXRbf2wmbi-UMwN1-Z_Qwt2UCK+92ZQ@mail.gmail.com
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Ответ на Re: reloption to prevent VACUUM from truncating empty pages at theend of relation  (Fujii Masao <masao.fujii@gmail.com>)
Ответы Re: reloption to prevent VACUUM from truncating empty pages at theend of relation  (Masahiko Sawada <sawada.mshk@gmail.com>)
Список pgsql-hackers
On Mon, Apr 8, 2019 at 7:22 PM Fujii Masao <masao.fujii@gmail.com> wrote:
>
> On Mon, Apr 8, 2019 at 5:30 PM Masahiko Sawada <sawada.mshk@gmail.com> wrote:
> >
> > On Mon, Apr 8, 2019 at 5:15 PM Fujii Masao <masao.fujii@gmail.com> wrote:
> > >
> > > On Mon, Apr 8, 2019 at 3:58 PM Julien Rouhaud <rjuju123@gmail.com> wrote:
> > > >
> > > > On Mon, Apr 8, 2019 at 8:01 AM Fujii Masao <masao.fujii@gmail.com> wrote:
> > > > >
> > > > > 2019年4月8日(月) 14:22 Tsunakawa, Takayuki <tsunakawa.takay@jp.fujitsu.com>:
> > > > >>
> > > > >> From: Alvaro Herrera [mailto:alvherre@2ndquadrant.com]
> > > > >> > "vacuum_truncate" gets my vote too.
> > > > >>
> > > > >> +1
> > > > >
> > > > >
> > > > > +1
> > > > > ISTM that we have small consensus to
> > > > > use "vacuum_truncate".
> > > >
> > > > I'm also fine with this name, and I also saw reports that this option
> > > > is already needed in some production workload, as Andres explained.
> > >
> > > OK, so I pushed the "vacuum_truncate" version of the patch.
> >
> > Thank you!
> >
> > "TRUNCATE" option for vacuum command should be added to the open items?
>
> Yes, I think.

Added.

> Attached is the patch which adds TRUNCATE option into VACUUM.

Thank you for the patch! I will review it.

Regards,

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



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