Re: Autonomous Transaction (WIP)

Robert Haas <robertmhaas@gmail.com> writes:
> I'm also pretty unconvinced that multiple PGPROCs is the right way to
> go.  First, PGPROCs have a bunch of state in them that is assumed to
> exist once per backend.  We might find pretty substantial code churn
> there if we try to go change that.  Second, why do other backends
> really need to know about our ATs?  As far as I can see, if other
> backends see the AT as a subtransaction of our top-level transaction
> up until it actually commits, that ought to be just fine.

If we can make it work like that, sure.  I'm a bit worried about how you'd
decouple a subtransaction and commit it atomically ... or if that's not
atomic, will it create any problems?  The point being that you need to
change both pg_subtrans and pg_clog to make that state transition.
        regards, tom lane