How to persist messages in Postgresql's LISTEN/NOTIFY? [closed]

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If I send notifications before starting to listen i.e.

notify test, 'test message';
listen test;

I loose that notifications. How can I persist them for later fetching? Actually, I need this notifications for tables updates, so it is preferably not to start spezialized messaging system like RMQ etc.

Answer 1

You can't replay them. If no one is listening, they're gone. Start up your own communication daemon to catch them. Then you can do whatever you want.