Solution : https://service.sap.com/sap/support/notes/135620 (SAP Service marketplace login required)
Key words :
dart customer extension ftxw0002 terminates, additional key words cmod, dart extraction tools perform, runtime error dbif_rsql_invalid_cursor, source code template, program include lxtxwf02, commits data temporarily, database table txw_index, dart writes, data segment
Related Notes :
209285 | Extraction terminates with DBIF_RSQL_INVALID_CURSOR |
99914 | DART - Data Retention Tool |