Solution : https://service.sap.com/sap/support/notes/962859 (SAP Service marketplace login required)
Key words : 
ziphp-ux itanium 64-bit  /oracle/oracle 64-bit/oracle 10, zipsun solaris x86-64  /oracle/oracle 64-bit/oracle 10, ziplinux itanium 64-bit  /oracle/oracle 64-bit/oracle 10, 2aix 5l 64-bit  /oracle/oracle 64-bit/oracle 10, sysdba analyze table cdef$ compute statistics, ziphp tru64  /oracle/oracle 64-bit/oracle 10, ziplinux 32-bit  /oracle/oracle 64-bit/oracle 10, ziplinux  x86-64  /oracle/oracle 64-bit/oracle 10, zipsolaris 64-bit  /oracle/oracle 64-bit/oracle 10, 64-bit  /oracle/oracle 64-bit/oracle 10
Related Notes : 
       
| 138639 | Poor DML performance with Oracle DDIC statistics |