To detect a conflict in a column of a row during the reconnection of a rowset to a database, the SyncResolver has the present value of the database in its column. Other colums have the null value.

How is it possible to detect that a column is the source of a conflict if the value in the database is null?

Example:
1. The value in the database is 5.
2. The rowset get the values of the database.
3. The rowset disconnects.
4. The user changes the value in the rowset: he puts 6 instead of 5.
4. Meanwhile someone else changes directly the value in the database without using the rowset: he puts null instead of 5 in the database.
5. When the rowset connects and the changes are propagated back to the database. A conflict is detected. But, as the value in the database is null, it is not possible to know which column produced the conflict.

Thanks in advance for your help.