fix update in nested_sets example

Fixes: #9520
Change-Id: I3dbf62bd9b70fb226cf7c641719df8ac53ec1427

diff --git a/examples/nested_sets/nested_sets.py b/examples/nested_sets/nested_sets.py
index 2412eaf9ece57e3c4b9b758e6dfca1dc0c2342c5..1492f6abd89766b792488afee7ddd9d0eec55ed5 100644 (file)
--- a/examples/nested_sets/nested_sets.py
+++ b/examples/nested_sets/nested_sets.py
@@ -52,7 +52,9 @@ def before_insert(mapper, connection, instance):
         )
 
         connection.execute(
-            personnel.update(personnel.c.rgt >= right_most_sibling).values(
+            personnel.update()
+            .where(personnel.c.rgt >= right_most_sibling)
+            .values(
                 lft=case(
                     (
                         personnel.c.lft > right_most_sibling,