Problem with column_mapped_collection and joined table inheritance

[Debilski]

Hi,

it seems there has been a bug introduced in http://hg.sqlalchemy.org/sqlalchemy/rev/4e9c059abca3 when using both column_mapped_collections and joined table inheritance.

Due to the fact that::

    cols = [c.key for c in [

                expression._only_column_elements(q, "mapping_spec") 

                for q in util.to_list(mapping_spec)]]

removes all table information from the column data, `_SerializableColumnGetter` fails in the `__call__` method as `self.colkeys` does not contain the names which `m.mapped_table.columns[k]` expects.

Cheers

/rike

[Michael Bayer]

Hi -

thanks, I've reopened ticket 2409.    

Please send along more detail next time as I had to do quite a bit of guessing as to how to reproduce a bug here, thanks !

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[Debilski]

Thanks for adding it. I’ll promise to include a test case next time.

Cheers

/rike