If anyone has seen a steams implementation in Postgres please let me know. Not just pub/sub, but full implementation of streams with consumer groups would be ve

If anyone has seen a steams implementation in Postgres please let me know. Not just pub/sub, but full implementation of streams with consumer groups would be very interesting to me. Second best, how would you implement this in Postgres? I’m tempted to give it a go but I haven’t a fully-baked plan yet.