Tom Lane wrote:
> Greg Stark <gsstark@mit.edu> writes:
> > At least some versions of postgres ensure that constraint triggers will be
> > executed in alphabetical order.
>
> Only within a single event, though, so I don't think fooling with the
> trigger names will do anything to resolve the sorts of problems people
> are dealing with.
>
> The most promising quick-fix I've heard suggested is to mark all the FK
> constraints as deferred until end of transaction. That would reduce the
> time window in which the locks are held to a short interval and thus
> make deadlocks less likely (not impossible, certainly, but less likely).
We would probably have to allow the deferred trigger queue to spill to
disk if we do that, of course.
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
