Re: notification information functions

On Sun, 2008-05-18 at 16:00 -0400, Andrew Dunstan wrote:
> I am working on moving the notification buffer into shared memory as
> previously discussed. Since pg_listener will no longer exist, I think we
> need to provide a couple of information functions.
>
> I suggest:
>
> pg_listened_events(out event name) returns setof record
> pg_pending_events(out event name, out message text) returns setof record
>
> The first would show events being listened on by the current backend,
> while the second would show all pending events for the current db.
>
> Given that there will no longer be any central place where events will
> be registered to be listened on, it will not be possible to show all
> such events for the current db.

Are you sure that there will be no central place ?

How will we know then that all listeners have received their events ?

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Hannu