| From: | Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Julien Rouhaud <rjuju123(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, "Tsunakawa, Takayuki" <tsunakawa(dot)takay(at)jp(dot)fujitsu(dot)com>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, David Steele <david(at)pgmasters(dot)net>, Andres Freund <andres(at)anarazel(dot)de>, "Bossart, Nathan" <bossartn(at)amazon(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, "Jamison, Kirk" <k(dot)jamison(at)jp(dot)fujitsu(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Re: reloption to prevent VACUUM from truncating empty pages at the end of relation |
| Date: | 2019-04-06 15:24:11 |
| Message-ID: | CAA8=A7-VLTUodZqcdxiRgyYSKPBPeXe1Ta1QUDzrzSd8-s+=-A@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Apr 5, 2019 at 3:28 PM Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>
> On Fri, Apr 5, 2019 at 2:11 PM Julien Rouhaud <rjuju123(at)gmail(dot)com> wrote:
> > > My preference is for "truncate" over "shrink".
> >
> > I don't really like "shrink" either, but users already have problems
> > to get the difference between VACUUM and VACUUM FULL, I'm afraid that
> > "VACUUM TRUNCATE_TABLE" will just make things worse.
>
> That's not the proposed syntax, though. What you'd end up writing is
> something like VACUUM (TRUNCATE OFF) myrel.
>
+1 for this syntax.
cheers
andrew
--
Andrew Dunstan https://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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