Solution : https://service.sap.com/sap/support/notes/732922 (SAP Service marketplace login required)
Key words :
generic typed data object, table data object, sorted tablepatch number, hashed/sorted table, generated hashed table, runt_illegal_switch runtime error, hashed table type, subsequent insert statement, character-type components, table-type components
Related Notes :
766330 | Runtime error DYN_COMP_ILLEGAL for CREATE DATA |
19466 | Downloading SAP kernel patches |