Solution : https://service.sap.com/sap/support/notes/792649 (SAP Service marketplace login required)
Key words :
table choose 'extras->force conversion', choose 'edit<->change'-->'partitioned tablespace', partitioned input field 'partitioned', data partitioned secondary indexes, data-partitioned secondary index, choose se14->'storage parameters', choose 'edit<->change', choose 'storage parameters', button 'storage parameters', storage parameters reason
Related Notes :
| 686905 | DB2-z/OS: DDIC corrections (6.20 and higher) |
| 407663 | DB2/390: DDIC corrections (6.10, 6.20) |