Symptoms
Assume that you run a query that casts string or binary data to Extended Markup Language (XML) datatype in Microsoft SQL Server 2016 and 2017. You may notice that the compilation time taken by the query might be much longer when compared to the compilation time taken in the earlier versions of SQL Server.
Resolution
This issue is fixed in the following 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:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminologythat Microsoft uses to describe software updates.