Symptoms
Assume that you use the Dynamic Management Functions (DMF) sys.dm_exec_query_statistics_xml in Microsoft SQL Server 2016 and 2017. When the query that is executed in the targeted session ID is already complete and the DMF tries to retrieve the query execution plan at the same time, an assertion error occurs.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Resolution
The issue is fixed in the following cumulative updates for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
References
Learn about the terminology that Microsoft uses to describe software updates.
