On Mon, Dec 3, 2018 at 10:59 AM Adrian Klaver <adrian.klaver@xxxxxxxxxxx> wrote: > > As I say - I'm trying to make it work from both ODBC and libpq > > connection (one at a time) IIUC what is being proposed is: Once, on the server, the DBA issues: CREATE EVENT TRIGGER (the function it runs issues NOTIFY 'channel-name' - even if no one is listening at any given point in time) Upon connection your client application executes: LISTEN 'channel-name' And then handles notification events from the channel normally. The client itself never issues CREATE EVENT - nor, frankly, should it. It shouldn't have sufficient permissions to do something like that. David J.
