On Wed, Sep 15, 2021 at 2:57 AM Tom Lane <t...@sss.pgh.pa.us> wrote: > Hearing no comments, I pushed that.
Thank you! > > I'm inclined to think we should flat-out reject LISTEN in any process > > that is not attached to a frontend, at least until somebody takes the > > trouble to add infrastructure that would let it be useful. I've not > > done that here though; I'm not quite sure what we should test for. > > After a bit of looking around, it seems that MyBackendType addresses > that problem nicely, so I propose the attached. Indeed, it seems only regular backends can send out notifies to frontends. In that case there is no point in supporting LISTEN to other processes. I guess a background worker can try it with SPI, but with no luck. +1 from my sight. -- Artur