On Oct 28, 2011, at 2:28 PM, JPLaverdure wrote:

> Hello Michael,
> 
> Sorry to be the thorn in your side.. 
> I attached a test case as requested.. Ticket 2312.

thanks for the ticket and this is fixed in radadaccc1bb5 .

> Also, it seems this is incompatible with history_meta based versioning.
> (Which probably has to do with the use of the 
> function.

I can sort of see that, but not quite - in this recipe, all the columns/tables 
are created as they normally are, not within __declare_last__(), unless I guess 
you want __history_mapper__ on the abstract base with the same polymorphic 
setup.....  The patch attached to http://www.sqlalchemy.org/trac/ticket/2313 
may achieve part of this, but I don't know about the "polymorphic" loader, 
would that ever have worked with the history_meta system ?   I would think 
history_meta would need special steps to work along with polymorphic 
selectables.    

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