So the solution to making get_or_create work is to downgrade the isolation level? That seems like the flaw is with get_or_create in the first place. I've found

So the solution to making get_or_create work is to downgrade the isolation level? That seems like the flaw is with get_or_create in the first place. I've found collisions to be quite nice for doing "upserts", either on a constraint or predictable id.