SQL has nothing to say about the layer of physical implementation, and that's where INDEX belongs (as does STOGROUP [DB2] and what have you). That's not a bug,

SQL has nothing to say about the layer of physical implementation, and that's where INDEX belongs (as does STOGROUP [DB2] and what have you). That's not a bug, that's a feature. Deriving from the deliberate intent to make physical independence (which was simply nonexistent at the time the model was conceived) a reality.