Solution : https://service.sap.com/sap/support/notes/946641 (SAP Service marketplace login required)
Key words : 
parameter db2_{aggr}_partitioned_f_fact, symptom problems occur, writing compressed data, db2 hw compression, target fact tables, rsadmin parameter db2_stop_repart_before_copy, compression dictionarycomplete repartitioning, complete repartitioning exits, shadow fact tables, rsadmin parameter
Related Notes : 
       
| 1008833 | Supplementary SAP Note about repartitioning | 
| 1000100 |