diff options
Diffstat (limited to 'lib/sqlalchemy/orm/mapper.py')
| -rw-r--r-- | lib/sqlalchemy/orm/mapper.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sqlalchemy/orm/mapper.py b/lib/sqlalchemy/orm/mapper.py index b84f0166a..ab6ff1c20 100644 --- a/lib/sqlalchemy/orm/mapper.py +++ b/lib/sqlalchemy/orm/mapper.py @@ -1328,7 +1328,7 @@ class Mapper(object): history = attributes.get_state_history(state, prop.key, passive=True) if history.added: hasdata = True - elif mapper.polymorphic_on and mapper.polymorphic_on.shares_lineage(col): + elif mapper.polymorphic_on and mapper.polymorphic_on.shares_lineage(col) and col not in pks: pass else: if post_update_cols is not None and col not in post_update_cols: |