Re: Sending notifications from the master to the standby

Joachim Wieland <joe(at)mcknight(dot)de> writes:
> On Tue, Jan 10, 2012 at 11:55 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Simon Riggs <simon(at)2ndQuadrant(dot)com> writes:
>>> Suggest we add something to initial handshake from standby to say
>>> "please send me notify traffic",

>> +1 on that.

> From what you said I imagined this walsender listener as a regular
> listener that listens on the union of all sets of channels that
> anybody is listening on on the standby, with the LISTEN transaction on
> the standby return from commit once the listener is known to have been
> set up on the master.

This seems vastly overcomplicated too. I'd just vote for a simple
yes/no flag, so that receivers that have no interest in notifies don't
have to deal with them.

regards, tom lane