The ``type`` argument may be the second positional argument
- If this column also contains a :class:`ForeignKey`,
- the type argument may be left as ``None`` in which case the
- type assigned will be that of the referenced column.
+ There is partial support for automatic detection of the
+ type based on that of a :class:`ForeignKey` associated
+ with this column, if the type is specified as ``None``.
+ However, this feature is not fully implemented and
+ may not function in all cases.
:param \*args: Additional positional arguments include various
:class:`SchemaItem` derived constructs which will be applied