KB4019028 - FIX: SQL Server 2016 consumes more memory when you reorganize a columnstore index

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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 reorganize a columnstore index on a computer that has large amounts of memory, the index reorg will consume maximum query memory which is 25% default of the server memory.

Resolution

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

Cumulative Update 3 for SQL Server 2016 SP1

Note: You must enable Trace flag (TF) 6404 for this fix to take effect.

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.