Thx, Francisco. It makes sense now. Just one more question: This page https://www.postgresql.org/docs/current/static/xfunc-c.html#DFUNC does not reference Windows/MSVC/MinGW as a way to compile the code. How should I do it? Thx. On Wed, Jun 20, 2018 at 11:44 AM, Francisco Olarte <folarte@xxxxxxxxxxxxxx> wrote: > On Wed, Jun 20, 2018 at 5:20 PM, Igor Korot <ikorot01@xxxxxxxxx> wrote: >>> https://www.postgresql.org/docs/10/static/sql-createeventtrigger.html >>> Your scenario suggests you may wish to avail yourself of the Listen and >>> Notify commands as well. >> >> I did look at the Listen/Notify. >> Unfortunately the listening is done on the channel versus listening >> for the specific event. > > Channels are cheap. You just listen on "whatever" and in the event > trigger you notify "whatever", payload is optional. > > The event trigger is the one which takes care of filtering the event > and notifying selectively. > > You can use a channel per event. > > Francisco Olarte.
