Assume that you install Cumulative Update 1 for SQL Server 2012 Service Pack 3. When you execute queries that contain CHANGETABLE functions, CPU usage might increase significantly.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 3188672 - Last Review: Sep 21, 2016 - Revision: 1
Microsoft SQL Server 2012 Service Pack 3