After discussing this with @vlad mihalcea I think it would be best if you guys create a `ConstraintNamingStrategy` because what he told me is that `PhysicalNamingStrategy` deals only with database objects like column, table, schema, etc. I felt it was a blocking bug, because it actually blocks people to use hibernate and Oracle database, but now I think it requires a new feature, so I am thus changing this from a *bug* to *improvement*