"Kevin Grittner" <kevin.gritt...@wicourts.gov> writes:
> Tom Lane <t...@sss.pgh.pa.us> wrote:
>>> I'm still not convinced that using shared memory is a bad way to
>>> pass these around. Surely we're not talking about large numbers
>>> of them. What am I missing here?
>>
>> They're not of a very predictable size.
> Surely you can predict that any snapshot is no larger than a fairly
> small fixed portion plus sizeof(TransactionId) * MaxBackends?
No. See subtransactions.
regards, tom lane
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