Solution : https://service.sap.com/sap/support/notes/1001558 (SAP Service marketplace login required)
Key words :
terms parallel dba_segments user_segments all_segments dba_extents user_extents all_extents reason, sapnet note 1002062if, create index my_index, parallel 4, segment_name='my_index', large table, select sum, oracle bug 4771672, additional oraclemergefix 5667736, ts_name = tablespace_name
Related Notes :
| 1002062 | Additional merge fix for Oracle 10.2.0.2 |
| 23345 | Consistency check of ORACLE database |