Subject Cannot restore a database because of failed unique key index
Author sir_wally_lewis
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