On Jul 1, 2012, at 4:18 PM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> However, I'm a bit worried by the "if (!FirstSnapshotSet)" restriction
> in GetLatestSnapshot.  Are we sure that enum comparisons could never
> happen without a snapshot already being set?  What's the point of
> throwing an error there anyway, as opposed to letting it redirect to
> GetTransactionSnapshot?

I don't know whether it should set the transaction snapshot or just r

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