I’m not sure what are the benefits for the micro service architecture. Do you expect other services/domains to connect to your database to listen for events? How does it scale if you have several micro services that need to publish events?
Or do you expect to a dedicated database to be maintained for this queue? Worth comparing it with other queue systems that persist messages and can help you to scale message processing like kafka with topic partitions.
Found this article on how Revolut uses Postgres for events processing: https://medium.com/revolut/recording-more-events-but-where-w...