Symptoms
Assume that you have a table that has columnstore indexes in Microsoft SQL Server 2016. When you run a parallel query that contains outer join operators against the table, an intra-query deadlock may occur.
Note This issue does not occur if any of the following conditions is true:
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The max degree of parallelism (MAXDOP) option is set to 1.
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Trace flag 9347 is enabled.
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Trace flag 4199 is enabled.
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The database compatibility level is set to 120.
Resolution
This issue is fixed in the following cumulative update for SQL Server:
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.