Hello, Your query uses index, which is correct (it contains unique values). Try to run this query on partially restored database.
Regards, Alexey Kovyazin IBSurgeon (www.ib-aid.com) > Hi, > > We use Firebird 2.5.1 on Linux 64 bit > > Firebird fails to restore because of a unique constraint( see below ). > However when interrogating the data, no duplicate is found. ( see below SQL, > unique key is on the grouped by fields ) > > How can this be? > > Kind Regards, > > Robert. > > > > SELECT ID_VN, CD_ITM_SPR > FROM AS_ITM_SPR > GROUP BY ID_VN, CD_ITM_SPR > HAVING COUNT(*) > 1 > > > > > gbak: activating and creating deferred index AK_AS_ITM_SPR > gbak:cannot commit index AK_AS_ITM_SPR > gbak: ERROR:attempt to store duplicate value (visible to active transactions) > in unique index "AK_AS_ITM_SPR" > gbak: ERROR:action cancelled by trigger (3) to preserve data integrity > gbak: ERROR: Cannot deactivate index used by a PRIMARY/UNIQUE constraint > gbak:Exiting before completion due to errors > > >
