have u checked this one? it's still failing, same error. > hello. > i'm testing next level of complexity - 3 level inheritance. > C inherits B inherits A, all via table-inheritance, no relations. > A,B are with polymorphic mappers via unions. > e.g. A=Employee, B=Engineer, C=Manager. > > The problem is: i cannot query the base polymorphic mapper A. > querying B and C is ok (as well as any other levels above, and/or > non-polymorphic mappers on all levels). > > The error is: > sqlalchemy.exceptions.NoSuchColumnError: > "Could not locate column in row for column 'pu_Engineer.atype' > > (Engineer is level B in this case.)
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