Re: VACUUM and transactions in different databases

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От Ragnar
Тема Re: VACUUM and transactions in different databases
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Msg-id 1165510613.379.31.camel@localhost.localdomain
обсуждение исходный текст
Ответ на Re: VACUUM and transactions in different databases  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: VACUUM and transactions in different databases  (Cornelia Boenigk <poppcorn@cornelia-boenigk.de>)
Список pgsql-general
On fim, 2006-12-07 at 11:28 -0500, Tom Lane wrote:
> Bill Moran <wmoran@collaborativefusion.com> writes:
> > In response to Alvaro Herrera <alvherre@commandprompt.com>:
> >> Of course they are able to complete, but the point is that they would
> >> not remove the tuples that would be visible to that idle open
> >> transaction.
>
> > I would expect that, but the OP claimed that vacuum full waited until
> > the other transaction was finished.
>
> No, she didn't claim that.  As far as I see she was just complaining
> about the failure to remove dead tuples:
>
> > > > > If I have a running transaction in database1 and try to vacuum
> > > > > database2 but the dead tuples in database2 cannot be removed.

well actually, there was also this:

On fim, 2006-12-07 at 00:57 +0100, Cornelia Boenigk wrote:
> Hi Bill
>
>  > Can you run a "vacuum
>  > full", and does it reclaim the space?
>
> I tried but it hangs.

and also this:

On fim, 2006-12-07 at 01:03 +0100, Cornelia Boenigk wrote:
>
> as soon as I committed the open transaction the hangig vacuum full
> completed and the table was vacuumed:

gnari




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