This would be a composite:

http://docs.sqlalchemy.org/en/latest/orm/composites.html


On Feb 18, 2018 4:25 PM, "Andrew Pashkin" <andrew.pash...@gmx.co.uk> wrote:

> I wonder if it's possible to have a field in a declarative model that
> would have relationship semantics but at the same time would be linked to a
> set of columns from the same row as the parent object and load the
> relationship without an additional join?
>
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SQLAlchemy - 
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http://www.sqlalchemy.org/

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