FIX: Rebuilding a nonclustered index to add columns by using CREATE INDEX with DROP_EXISTING=ON and ONLINE=ON causes blocking

Symptoms

You rebuild a non-clustered index by using CREATE INDEX together with the DROP_EXISTING=ON and ONLINE=ON clauses to add a new column to that non-clustered index in SQL Server. If you add a new column to the nonclustered index, you may encounter blocking in a different SPID when write operations such as INSERT or DELETE are performed on the same underlying table during the index rebuild period.

Resolution

Update information

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

Cumulative Update 6  for SQL Server 2012 Service Pack 3

Cumulative Update 10 for SQL Server 2014 SP1  

Cumulative update 3 for SQL Server 2014 SP2

Cumulative Update 4 for SQL Server 2016


Recommendation: Install the latest cumulative update for SQL Server

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 that Microsoft uses to describe software updates.
Properties

Article ID: 3194365 - Last Review: 2017 Yanv 18 - Revision: 3

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