Cumulative Update information
To enable this feature improvement, enable the SQL Server trace flag 7471.
Trace flag 7471 is a global trace flag. It can be specified as a startup parameter by using the dbcc traceon (7471,-1) or the -T7471 option in the command line argument.
This feature improvement was first introduced in the following cumulative update of SQL Server.
For more information about this enhancement, see the following MSSQL Tiger Team Blog article: