Tom Lane a écrit :
Augustin Amann <augustin@xxxxxxx> writes:
Tom Lane a écrit :
What that really means is that the first process is waiting for a row
lock that's held by the second one --- that is, it's trying to update a
row that the second transaction has updated and not yet committed.
I understand. But a dead lock is for me, a situation that sould not
appear, event if the storage is slow ... I'm wrong ?
If you're getting deadlocks on these, then what you have is two
concurrent transactions trying to update the same two tuples in
different orders. Which is a classic deadlock case, and the only
fix is to fix your app so that multiple updates are done in some
consistent order --- or broken into multiple transactions.
Yes, I understand, but my problem is that no transaction are involved in
our case, just one update same statement ...
I'll look for an hidden transaction (ask the dev, pgpool) :/ ...
Thank you for your confirming that.
Regards,
Augustin.
regards, tom lane
