2.1.3
- Fixed regression where columns delivered to a mapped class from an unmapped MappedAsDataclass mixin or from a class decorated with unmapped_dataclass() would not be placed in the Table in the order in which they were declared on the mixin
- Fixed regression caused by the new implementation of ExecutableStatement.params() where parameter values established using this method would not be rendered when compiling the statement with the literal_binds compiler option
From SQLAlchemy
Released: October 2, 2026
orm
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[orm] [bug] [regression] Fixed regression where columns delivered to a mapped class from an unmapped
_orm.MappedAsDataclassmixin, or from a class decorated with_orm.unmapped_dataclass(), would not be placed in the_schema.Tablein the order in which they were declared on the mixin; columns that had no dataclass default, such as a primary key column with no_orm.mapped_column.default, or which made use of_orm.mapped_column.default_factory, would be moved after the remaining columns of the mixin.References: #13634
sql
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[sql] [bug] [regression] Fixed regression caused by the new implementation of
ExecutableStatement.params()where parameter values established using this method would not be rendered when compiling the statement with theliteral_bindscompiler option, instead rendering NULL with a warning.References: #13635