- varchar requires a length

diff --git a/test/orm/inheritance/test_relationship.py b/test/orm/inheritance/test_relationship.py
index 0afc6d900419a96dbf306fbc5c749542a30356d3..01167b23e665e3e8b88692eefc02de95be7813ae 100644 (file)
--- a/test/orm/inheritance/test_relationship.py
+++ b/test/orm/inheritance/test_relationship.py
@@ -1382,7 +1382,7 @@ class JoinedloadSinglePolysubSingle(
 
             id = Column(Integer, primary_key=True)
 
-            row_type = Column(String, nullable=False)
+            row_type = Column(String(50), nullable=False)
             __mapper_args__ = {'polymorphic_on': row_type}
 
             user_id = Column(Integer, ForeignKey('users.id'), nullable=False)