KB4019903 - FIX: Query against sys.dm_db_partition_stats DMV runs slow if the database contains large numbers of columnstore partitions in SQL Server 2016

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Applies To

SQL Server 2016 Developer - duplicate (do not use) SQL Server 2016 Enterprise - duplicate (do not use) SQL Server 2016 Enterprise Core - duplicate (do not use) SQL Server 2016 Standard - duplicate (do not use) SQL Server 2016 Service Pack 1

Symptoms

Assume that you use Microsoft SQL Server 2016. When you query against sys.dm_db_partition_stats Dynamic Management View (DMV) on a database that contains large numbers of columnstore partitions, the query might take a long time to complete.

Resolution

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

Cumulative Update 6 for SQL Server 2016 RTM

Cumulative Update 3 for SQL Server 2016 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

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.