Stop using FunctionCommandMixin for schema.Constraint
@@ -407,8 +407,7 @@ class ConstraintCommand(
class CreateConstraint(ConstraintCommand,
- referencing.CreateReferencedInheritingObject,
- s_func.FunctionCommandMixin):
+ referencing.CreateReferencedInheritingObject):
astnode = [qlast.CreateConcreteConstraint, qlast.CreateConstraint]
referenced_astnode = qlast.CreateConcreteConstraint
