PGMQ doesn't give you a way to deliver the same message to concurrent consumers the same way that you can with Kafka via consumer groups.

To get this with PGMQ, you'd need to do something like creating multiple queues, then send messages to all the queues within a transaction. e.g. `begin; pgmq.send('queue_a'...); pgmq.send('queue_b'...); commit;`