Greg Stark wrote:
> On Wed, Jun 17, 2009 at 6:40 PM, Alvaro
> Herrera<alvherre@commandprompt.com> wrote:
> > AFAIK that's an "autonomous transaction", at least to some other RDBMSs.
>
> I have no idea what they are in Firebird but the name conjured up a
> different (interesting) idea for me. I had the image of naming a
> transaction and then being able to have other sessions join that same
> transaction. We've discussed this before for connection-pooled systems
> which want to be able to return their connection to the pool in the
> middle of their transaction.
Sounds a bit like a prepared transaction, except that you don't put it
aside for later commit but rather "suspend" it.
> It would also possibly be useful for parallel data dumps and loads.
I think the clone snapshot stuff would be more easily usable for that.
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support