[denibertovic]

It is true that Postgres supports Pub/Sub but unfortunately the Celery broker driver does not take advantage of this. It would be great if we could get support for it. Nevertheless, just because it has pub/sub doesn't mean it's a full AMQP implementation. Also, there's the fact that most amqp solutions are in memory, wheres a database is on disk... also has it's costs.

[denibertovic]

Anyone that's interested in Postgres's pub/sub might find this useful: https://denibertovic.com/talks/real-time-notifications/#/

Just slides though. Haven't gotten around to writing a post about it yet.