https://userapps.support.sap.com/sap/support/knowledge/en/2354379
2354379 - CREATE UNIQUE INDEX for EDOPROCSPINTDET fails during upgrade phase...
During an upgrade of an ABAP Stack with SUM, it fails at phase MAIN_NEWBAS/PARCONV_UPG or MAIN_NEWBAS/PARMVNT_UPG (or PARMVNT_APPL_VIEWS as of SUM 2.0 SP13)...
createuniqueindexfailsupgrade