FIX: Access violation when you run a query that uses the XML data type in SQL Server 2014 and 2017

Applies to: Microsoft SQL Server 2014 Service Pack 2SQL Server 2014 DeveloperSQL Server 2014 Enterprise More


Assume that you create a query that references to the Extended Markup Language (XML) data type in Microsoft SQL Server 2014 and 2017. When you run the query across multiple threads, the query may fail. Additionally, an access violation error occurs in the SQL Server error log.


This issue is fixed in the following cumulative updates for SQL Server:

       Cumulative Update 13 for SQL Server 2017

       Cumulative Update 1 for SQL Server 2014 SP3

       Cumulative Update 14 for SQL Server 2014 SP2


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


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