3. A method as in claim 1 wherein a data processing system for carrying out the instruction execution plan has multiple processing units, and wherein the instruction execution plan further specifies which instructions in the instruction execution plan are to be distributed to designated ones of the processing units for execution.
3. A method as in claim 1 wherein a data processing system for carrying out the instruction execution plan has multiple processing units, and wherein the instruction execution plan further specifies which instructions in the instruction execution plan are to be distributed to designated ones of the processing units for execution. 7. A method as in claim 3 wherein the instruction execution plan parts are realized as a set of relational database query-specific instruction statements that are compiled and dynamically bound to the processing units at execution time.