fix incorrect method name

diff --git a/lib/sqlalchemy/schema.py b/lib/sqlalchemy/schema.py
index 9a07b9de4177a3df153ddafc47db8db3fee87af1..f894e6c31c956fdd57e32bbd88ac7397e06d6181 100644 (file)
--- a/lib/sqlalchemy/schema.py
+++ b/lib/sqlalchemy/schema.py
@@ -2007,7 +2007,7 @@ class Constraint(SchemaItem):
             pass
         raise exc.InvalidRequestError(
                     "This constraint is not bound to a table.  Did you "
-                    "mean to call table.add_constraint(constraint) ?")
+                    "mean to call table.append_constraint(constraint) ?")
 
     def _set_parent(self, parent):
         self.parent = parent