diff options
Diffstat (limited to 'lib/sqlalchemy/ext/mutable.py')
| -rw-r--r-- | lib/sqlalchemy/ext/mutable.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/sqlalchemy/ext/mutable.py b/lib/sqlalchemy/ext/mutable.py index a133f950d..e721397b3 100644 --- a/lib/sqlalchemy/ext/mutable.py +++ b/lib/sqlalchemy/ext/mutable.py @@ -600,7 +600,8 @@ class Mutable(MutableBase): for prop in mapper.column_attrs: if ( schema_event_check and - prop.columns[0].info.get('_ext_mutable_orig_type') + hasattr(prop.expression, 'info') and + prop.expression.info.get('_ext_mutable_orig_type') is sqltype ) or ( prop.columns[0].type is sqltype |