Fixed DatabaseFeatures.update_can_self_select on MariaDB 10.3.2+.

django/db/backends/mysql/features.py

@@ -6,7 +6,6 @@ from django.utils.functional import cached_property
 
 class DatabaseFeatures(BaseDatabaseFeatures):
     empty_fetchmany_value = ()
-    update_can_self_select = False
     allows_group_by_pk = True
     related_fields_match_type = True
     # MySQL doesn't support sliced subqueries with IN/ALL/ANY/SOME.
@@ -62,6 +61,10 @@ class DatabaseFeatures(BaseDatabaseFeatures):
             result = cursor.fetchone()
         return result[0]
 
+    @cached_property
+    def update_can_self_select(self):
+        return self.connection.mysql_is_mariadb and self.connection.mysql_version >= (10, 3, 2)
+
     @cached_property
     def can_introspect_foreign_keys(self):
         "Confirm support for introspected foreign keys"