Le mercredi 26 mars 2008, Tom Lane a écrit :
> Dimitri Fontaine <[EMAIL PROTECTED]> 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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