Fixed -- Added note uniqueness of constraints names in docs.
@@ -67,7 +67,8 @@ ensures the age field is never less than 18.
.. attribute:: CheckConstraint.name
-The name of the constraint.
+The name of the constraint. You must always specify a unique name for the
+constraint.
``UniqueConstraint``
====================
@@ -93,7 +94,8 @@ date.
.. attribute:: UniqueConstraint.name
-The name of the constraint.
+The name of the constraint. You must always specify a unique name for the
+constraint.
``condition``
-------------
