"delete-cascade" → "delete-orphan"
In order to integrate more efficiently with this configuration, additional
directives described at :ref:`passive_deletes` should be used.
-.. warning:: Note that the ORM's "delete" and "delete-cascade" behavior applies
+.. warning:: Note that the ORM's "delete" and "delete-orphan" behavior applies
**only** to the use of the :meth:`_orm.Session.delete` method to mark
individual ORM instances for deletion within the :term:`unit of work` process.
It does **not** apply to "bulk" deletes, which would be emitted using