Sorry I don't think the last paragraph you said is true. I dont see any special data types or models that can be modeled by MPP architecture but cannot be model

Sorry I don't think the last paragraph you said is true. I dont see any special data types or models that can be modeled by MPP architecture but cannot be modeled in Spark. In short, I don't believe there is much difference at the physical execution level between MPP and Spark. I also don't understand what you mean by orderable. Spark does not require records to be oderable. Maybe you can elaborate?