I made an entity with natural key line num -- this field gets autocreated in the insert method.
I made access modifier for the linenum in the entity as private
when i want to import, i don't want to fill the linum -- it should be filled with the insert method
i tried to import where the table is empty but got this error
The keys of the record are DEFINITIONGROUP, EXECUTIONID, LINENUM, PARTITION. Duplicate records must be removed the file prior to import