This comment is spot on. JPA/Hibernate is a very big leaky abstraction. That's why I ditched the whole thing and started to use things like jOOQ instead. In the

This comment is spot on. JPA/Hibernate is a very big leaky abstraction. That's why I ditched the whole thing and started to use things like jOOQ instead. In the end you must learn SQL to make sense of all of this anyway.