KB4009839 - FIX: An MDX query returns incorrect results in SSAS 2014 or 2016 Tabular mode

Symptoms

Assume that you use Microsoft SQL Server 2014 Analysis Services (SSAS 2014) in Tabular mode. When you execute a query that uses a Distinct Count calculation, values may be missing from the query result.

 

Resolution

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

Cumulative Update 5 for SQL Server 2016 RTM

Cumulative Update 2 for SQL Server 2016 SP1

Cumulative Update 4 for SQL Server 2014 SP2

Cumulative Update 11 for SQL Server 2014 SP1

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:

Latest cumulative update for SQL Server 2016

Latest cumulative update for SQL Server 2014

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.

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