title: Is there a way to rely on Postgres Notify/Listen mechanism?
body: <p>I have implemented a Notify/Listen mechanism, so when a special request is sent to the web server, using notify I can notify the workers (in Python) that there's a pending request waiting to be processed. 
  The implementation works fine, but the problem is that if the workers server is restarting, the notification gets lost, since at that particular time there's no listener.
  I can implement a service like MQRabbit or similar, but my needs are so simple that implement such a monster is too much.
  Is there any way, a configuration variable perhaps, that can give some persistence to the notification mechanism?</p>
  
  <p>Thanks in advance</p>