Usecases that really need Hibernate HQL over JPQL

I know JPQL is a subset of HQL.

Are there any practical usecases (please give examples) that really need HQL specific features to be used (that means it is impossible or considerably difficult with JP开发者_如何学PythonQL) to implement them?

Each time you want to use one of the expressions/functions listed in the HQL documentation, and which is not supported by JPQL :

• second, minute, etc.
• user additions to the dialect
• etc.

I conclude that there is no practical usecase that is impossible or considerably difficult to implement only with JPQL (without using HQL)