Removed in SQL Server version: N/A Extended Events wait_type value: Themap_keyvalue insys.dm_xe_map_valuesis 117 in 2008 and 2008 R2, and 121 in 2012 and 2014 RTM. After 2014 RTM, you must check the DMV to get the latest value as somemap_keyvalues have changed in later builds. ...