FIX: Access violation occurs when execute a query that contains many COUNT DISTINCT operations in SQL Server 2016

Applies to: SQL Server 2016 DeveloperSQL Server 2016 EnterpriseSQL Server 2016 Enterprise Core More

Symptoms


When you execute a query that contains many COUNT DISTINCT operations in Microsoft SQL Server 2016, an access violation might occur.

Resolution


This problem was fixed in the following cumulative updates for SQL Server:


Workaround


To work around this issue, break the query into multiple small queries.

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 terminology Microsoft uses to describe software updates.