Any reason you couldn't replace "Postgres" with "a database"? I didn't find anything Postgres specific other than maybe "SELECT FOR UPDATE SKIP LOCKED" which you can do without.

> Any reason you couldn't replace "Postgres" with "a database"

You could! But you would need ideal concurrency semantics.

> I didn't find anything Postgres specific other than maybe "SELECT FOR UPDATE SKIP LOCKED" which you can do without

You mean using some equivalent way to achieve "SELECT FOR UPDATE SKIP LOCKED" ?

Using some equivalent, yes