Automatic creation of Archive Date Field on the UDT's after upgrade

Dear All,

We had upgraded a client from SAP 2007B to SAP 8.81,after the upgradation while checking the list of fields for our User Defined Tables through Query Manager,a Field name ArchiveDate got created. This field has got created for all the User Defined Tables.

Has anybody faced this issue?

Thanks,

Vishwanath