On Wed, Dec 10, 2014 at 10:32:42AM +0200, Heikki Linnakangas wrote:
> >I don't think we need to have 2PC files survive a pg_upgrade. It seems
> >perfectly okay to remove them from the new cluster at some appropriate
> >time, *if* they are copied from the old cluster at all (I don't think
> >they should be.)
>
> I think pg_upgrade should check if there are any prepared
> transactions pending, and refuse to upgrade if there are. It could
> be made to work, but it's really not worth the trouble. If there are
> any pending prepared transactions in the system when you run
> pg_upgrade, it's more likely to be a mistake or oversight in the
> first place, than on purpose.
pg_upgrade already checks for prepared transactions and errors out if
they exist; see check_for_prepared_transactions().
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
+ Everyone has their own god. +