Tom Lane wrote:
"Heikki Linnakangas" <[EMAIL PROTECTED]> writes:
There's a small window between backend A committing and sending a NOTIFY, and the time client B receives the notification from backend B through the connection and reacts to it.

Sorry, I was unclear: the case that's of interest is telling
self-notifies apart from others.  For this purpose, your own backend's
PID *is* sufficiently stable, because you're still connected to it
when the notify is sent to you.

Oh, I see. Yes, that's true.

This is all very hand-wavy of course, as we don't know of any real application that uses LISTEN/NOTIFY with 2PC...

Yeah.  I'm inclined to leave that alone (but document it) until/unless
someone complains.  Without a real use-case to look at, it's a bit hard
to be sure what's a useful behavior.

Yep.

--
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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