> On the contrary, it was very well discussed and designed. Why do you > even care if the anyone is listening or not? Simply remove the "check > if anyone listens" step and send the NOTIFY. >
Well, I guess we disagree on this.
Why trashing the system with NOTIFYs no one listens to? Of course, like Tom Lane suggested, I could create a table similar to now obsolete pg_listener and manage it from the client that LISTENs and gets notifications.
Also, what sense pg_listening_channels() function makes, if it returns channels that I created (in my current session/connection)? I don't need this function to know whether I issued LISTEN my_channel or not.
We need pg_listening_channels() because the information it returns should
be stored in the DB and applications (libraries) does not need to store it
