On 8/17/16 7:56 PM, Michael Paquier wrote:
> On Thu, Aug 18, 2016 at 1:35 AM, Alvaro Herrera
> <alvhe...@2ndquadrant.com> wrote:
>> I don't remember how pg_snapshot works, but it's probably fine
>> to start with an empty subdir (is it possible to export a snapshot from
>> a prepared transaction?)
>
> From xact.c:
> /*
> * Likewise, don't allow PREPARE after pg_export_snapshot. This could be
> * supported if we added cleanup logic to twophase.c, but for now it
> * doesn't seem worth the trouble.
> */
> if (XactHasExportedSnapshots())
> ereport(ERROR,
> (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
> errmsg("cannot PREPARE a transaction that has exported snapshots")));
> So that's fine.
Thank you for tracking that down, Michael.
--
-David
da...@pgmasters.net
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