diff --git a/lib/sqlalchemy/testing/requirements.py b/lib/sqlalchemy/testing/requirements.py
index ab133f3d56..9ba91fb9b9 100644
--- a/lib/sqlalchemy/testing/requirements.py
+++ b/lib/sqlalchemy/testing/requirements.py
@@ -789,6 +789,16 @@ class SuiteRequirements(Requirements):
         """
         return exclusions.closed()
 
+    @property
+    def order_by_col_from_union(self):
+        """target database supports ordering by a column from a SELECT
+        inside of a UNION
+
+        E.g.  (SELECT id, ...) UNION (SELECT id, ...) ORDER BY id
+
+        """
+        return exclusions.open()
+
     @property
     def order_by_label_with_expression(self):
         """target backend supports ORDER BY a column label within an