I'm a software developer at SAP working on the SAP HANA database.
Although there has been support for SAP HANA in Hibernate for some time, the respective dialects implemented only the basic features and there was no official support from SAP.
Several features like, for example, database-generated identity columns and table comments were not available.
The recent Hibernate ORM release 5.2.12 comes with an improved support for SAP HANA that allows the use of all features provided by the Hibernate ORM framework.
This release comes with full support from the SAP HANA team. We will keep updating this open source project to deliver more advanced features.