| From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
|---|---|
| To: | Antonin Houska <ah(at)cybertec(dot)at> |
| Cc: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: why there is not VACUUM FULL CONCURRENTLY? |
| Date: | 2024-03-07 17:56:46 |
| Message-ID: | 202403071756.f55kh6tj6bmf@alvherre.pgsql |
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| Lists: | pgsql-hackers |
On 2024-Feb-16, Antonin Houska wrote:
> BTW, I'm failing to understand why cluster_rel() has no argument of the
> BufferAccessStrategy type. According to buffer/README, the criterion for using
> specific strategy is that page "is unlikely to be needed again
> soon". Specifically for cluster_rel(), the page will *definitely* not be used
> again (unless the VACCUM FULL/CLUSTER command fails): BufferTag contains the
> relatin file number and the old relation file is eventually dropped.
>
> Am I missing anything?
No, that's just an oversight. Access strategies are newer than that
cluster code.
--
Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/
"Most hackers will be perfectly comfortable conceptualizing users as entropy
sources, so let's move on." (Nathaniel Smith)
https://mail.gnu.org/archive/html/monotone-devel/2007-01/msg00080.html
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