MSSQLSERVER_1904
SQL Server 2008 R2
Modify the key column list to include no more than the specified maximum number of columns.
For nonclustered indexes, consider using the INCLUDE clause in the CREATE INDEX statement to add columns to the index as nonkey columns. This method avoids exceeding the current index size limitation of a maximum of 16 key columns. For more information, see Index with Included Columns.
