Robert Haas <> writes:
> On Fri, Oct 21, 2011 at 11:36 AM, Tom Lane <> wrote:
>> 1. Restrict exported snapshots to be loaded only by transactions running
>> in the same database as the exporter.  This would fix the problem, but
>> it cuts out one of the main use-cases for sync snapshots, namely getting
>> cluster-wide-consistent dumps in pg_dumpall.

> I am unexcited by #2 on usability grounds.  I agree with you that #3
> might end up being a fairly small pessimization in practice, but I'd
> be inclined to just do #1 for now and revisit the issue when and if
> someone shows an interest in revamping pg_dumpall to do what you're
> proposing (and hopefully a bunch of other cleanup too).

Seems like that is the consensus view, so that's what I'll do.

                        regards, tom lane

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