entity = with_polymorphic(Employee, '*')
Using aliasing with with_polymorphic
-------------------------------------
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The :func:`.orm.with_polymorphic` function also provides "aliasing" of the
polymorphic selectable itself, meaning, two different :func:`.orm.with_polymorphic`
modern database versions now support this syntax.
Referring to Specific Subclass Attributes
------------------------------------------
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The entity returned by :func:`.orm.with_polymorphic` is an :class:`.AliasedClass`
object, which can be used in a :class:`.Query` like any other alias, including