"Not set" shown in the name column after upgrading to database layout version 2.
TAC Vista 5.1.7 or newer
SQL taclogdata database layout version 2.0
The "Name" column is a new column introduced in Vista 5.1.7 with the new database layout, so when a database is upgraded no name is added as there is no contact with Vista. Once Vista is running and a value is logged to the trendlog the name will be updated in the "Name" column to the same name as shown in Vista.
No resolution required as the name will be updated once a log value is logged to the log database.