"Kevin Grittner" <[email protected]> writes:
> Tom Lane <[email protected]> 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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