Solution : https://service.sap.com/sap/support/notes/181514 (SAP Service marketplace login required)
Key words :
additional key words hash table, symptom runtime error itab_duplicate_key, entries und ordered, primary keypatch level, type hashed table, hashed table, internal table, select statement, database interface, internal elimination
Related Notes :
183118 | SELECT FOR ALL ENTRIES and ORDER BY PRIMARY KEY |