diff options
Diffstat (limited to 'lib/sqlalchemy/orm/persistence.py')
| -rw-r--r-- | lib/sqlalchemy/orm/persistence.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/persistence.py b/lib/sqlalchemy/orm/persistence.py index 24a33ee8d..2bc189c1d 100644 --- a/lib/sqlalchemy/orm/persistence.py +++ b/lib/sqlalchemy/orm/persistence.py @@ -396,6 +396,12 @@ def _collect_insert_commands( params[col.key] = value if not bulk: + # for all the columns that have no default and we don't have + # a value and where "None" is not a special value, add + # explicit None to the INSERT. This is a legacy behavior + # which might be worth removing, as it should not be necessary + # and also produces confusion, given that "missing" and None + # now have distinct meanings for colkey in mapper._insert_cols_as_none[table].\ difference(params).difference(value_params): params[colkey] = None |