From 097e1eacaaf43f728c552df9ebbfa0fb81c4b6c7 Mon Sep 17 00:00:00 2001
From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Tue, 21 Feb 2023 11:06:17 -0500
Subject: fix with_polymorphic

Fixed typing issue where :func:`_orm.with_polymorphic` would not record the
class type correctly.

Fixes: #9340
Change-Id: I535ad9aede9b60475231028adb8dc270e55738a4
---
 lib/sqlalchemy/orm/util.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/sqlalchemy/orm/util.py')

diff --git a/lib/sqlalchemy/orm/util.py b/lib/sqlalchemy/orm/util.py
index ad9ce2013..1ef0d7159 100644
--- a/lib/sqlalchemy/orm/util.py
+++ b/lib/sqlalchemy/orm/util.py
@@ -994,7 +994,7 @@ class AliasedInsp(
     @classmethod
     def _with_polymorphic_factory(
         cls,
-        base: Union[_O, Mapper[_O]],
+        base: Union[Type[_O], Mapper[_O]],
         classes: Union[Literal["*"], Iterable[_EntityType[Any]]],
         selectable: Union[Literal[False, None], FromClause] = False,
         flat: bool = False,
-- 
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