Primary key constraint behavior.
The value n
may be 1 or 0:
1 (true) - When a Primary Key constraint is specified, it does not
also become the IDKey index in the class definition.
0 (false) - A Primary Key constraint specified also becomes the IDKey index in the class definition; this generally gives better performance, but means that the Primary Key fields cannot be updated.
Range of Values
0 or 1. The default is 1.