Re: Synchronized snapshots versus multiple databases

Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Fri, Oct 21, 2011 at 11:36 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> 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