The answer is simple: model optimized for storage and model designed for processing are two different things. The languages used to describe and query them have to be different.
> The languages used to describe and query them have to be different.
Absolutely not.
That which is asserted without evidence can be dismissed without evidence.
> The languages used to describe and query them have to be different.
Absolutely not.
That which is asserted without evidence can be dismissed without evidence.