On Tue, Apr 24, 2018 at 8:45 AM Gail Badner <gbad...@redhat.com> wrote:
> Yes, that should work with CriteriaQuery as well. It's a reasonable > workaround. > > If JPA doesn't support this now, is it something that should be supported > in the future? The problem with defining support for this in the spec is that it is relying on Hibernate's "SQL function registry" and its `SQLFunction` contract. I seriously doubt we'd get all the EG members to agree to some standardization of anything like a `SQLFunction` contract. I think proposing to add additional functions to the spec as "built-in" is probably more likely. I can especially see EXTRACT being likely. Maybe DATEDIFF. Oracle for sure does not support DATEDIFF, but it does support the EXTRACT-from-INTERVAL approach. Anyone know offhand other databases which to not define DATEIDFF? I personally think having DATEDIFF defined as "built-in" is the best option as the provider can always map that to EXTRACT-from-INTERVAL for Oracle, etal - its much harder to do that by mapping EXTRACT-from-INTERVAL to DATEDIFF. _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev
