Hi John,
Check out the doc section entitled Mapping a class with table
inheritance:
http://www.sqlalchemy.org/docs/adv_datamapping.html#advdatamapping_inheritance
Although it's not the only way to do it, you might be interested in
polymorphic multiple-table inheritance, which SQLAlchemy already
What's more, I should have just said to look in your sqlalchemy
subdirectory /examples/polymorph/polymorph.py.
I forgot that's where I learned the above techniques a month ago...
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