
1 Jul
2009
1 Jul
'09
2:12 a.m.
Mads Lindstrøm
I do not get this explanation, could you expand? I would have thought it should be: "difference? Because SQLAlchemy knows about the relationships (not relations, but relation_ships_), it do not have to explicitly join on foreign keys.".
I think this is a common terminology issue - lots of people think "relational" refers linking tables together (foreign keys), and not the mathematical definition of a relation as a subset of T1 x T2 x ... x Tn -- i.e. a table. -k -- If I haven't seen further, it is by standing in the footprints of giants