Re: advancing snapshot's xmin

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От Dimitri Fontaine
Тема Re: advancing snapshot's xmin
Дата
Msg-id 200803261705.36443.dfontaine@hi-media.com
обсуждение исходный текст
Ответ на Re: advancing snapshot's xmin  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
Le mercredi 26 mars 2008, Tom Lane a écrit :
> Dimitri Fontaine <dfontaine@hi-media.com> writes:
> > Le mercredi 26 mars 2008, Tom Lane a écrit :
> >> whenever the number of active snapshots goes to zero
> > Does this ever happen?
> Certainly: between any two commands of a non-serializable transaction.

Oh, it's a transaction scope snapshot when I though about cluster global
snapshots. Thanks a lot for explaining, and sorry for disturbing! :)

--
dim

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