Solution : https://service.sap.com/sap/support/notes/822819 (SAP Service marketplace login required)
Key words : 
typing method data typei_odsobject   importing            type          rsdodsobjecti_tablnm      importing            type          rsd_tablnmi_t_odso_indx importing            type          rsd_t_odso_indxi_t_indx_iobj importing            type          rsd_t_odso_indx_iobjt_storpar     changing, terms r3load sql0270n ods active table partitioning key unique index hash partititioning smigr_create_ddl shortdump cx_smigr_program_error reason, ddl generation method throws exception cx_smigr_program_error, importing ods tables, sapbwnews bw sp12 netweaver'04 stack 12, parameter     type      pass, type          mgr_t_storparmethod exceptions, db6 hash partitioning, ods active tables, additional unique ods indexes
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