Re: REINDEX vs VACUUM

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От Peter J. Holzer
Тема Re: REINDEX vs VACUUM
Дата
Msg-id 20230105121500.sbjmmw3xswwzyelt@hjp.at
обсуждение исходный текст
Ответ на Aw: Re: REINDEX vs VACUUM  (Karsten Hilbert <Karsten.Hilbert@gmx.net>)
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On 2023-01-05 12:34:08 +0100, Karsten Hilbert wrote:
> > Von: "Peter J. Holzer" <hjp-pgsql@hjp.at>
> > On 2023-01-04 09:34:42 -0600, Ron wrote:
> > > I don't think VACUUM FULL (copy the table, create new indices and other
> > > metadata all in one command) actually vacuums tables.  It's a misleading
> > > name.
> >
> > Move all the stuff from the living room to the bedroom and then jettison
> > the living room.
> >
> > Isn't that how you normally vacuum your living room?
>
> Well, yeah, I wouldn't expect the table to be *copied*. After all, there's
> not that much use for more than one per living room.

Well, you won't have the old table anymore if you leave it in the living
room.

On a more serious note: It it pretty much impossible to move anything
inside a computer. To move something you have to

* copy it and then delete (overwrite) the original, or
* leave it where it is and refer to it from a different location (which
  typically means copying and deleting the reference)

        hp

--
   _  | Peter J. Holzer    | Story must make more sense than reality.
|_|_) |                    |
| |   | hjp@hjp.at         |    -- Charles Stross, "Creative writing
__/   | http://www.hjp.at/ |       challenge!"

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