I've done this before with good results. I was pleased to see they are using `SELECT FOR UPDATE SKIP LOCKED`. That is what this 2nd Quadrant article recommends

I've done this before with good results. I was pleased to see they are using `SELECT FOR UPDATE SKIP LOCKED`. That is what this 2nd Quadrant article recommends, which I think is required reading if you want to implement this yourself: https://www.2ndquadrant.com/en/blog/what-is-select-skip-locked-for-in-postgresql-9-5/ https://www.2ndquadrant.com/en/blog/what-is-select-skip-lock... It goes into more detail about wrong ways to implement a queue and what the downsides are for its preferred approach.