Symptoms

Assume that you have a database that contains tables with clustered columnstore index in SQL Server 2017. When you run the statement DBCC CHECKDB WITH ALL_ERRORMSGS, NO_INFOMSGS, PHYSICAL_ONLY in the database, a dump file is generated and you may receive error messages that resemble the following:

Table error: Object ID ObjectID, index ID IndexID, partition ID PartitionID, alloc unit ID ID (type In-row data). The off-row data node at page (1:1749624), slot 1, text ID TextID is referenced by page (0:0), slot 0, but was not seen in the scan. 
CHECKDB found 0 allocation errors and 1 consistency errors in table 'TableName' (object ID ObjectID). 
CHECKDB found 0 allocation errors and 1 consistency errors in database 'DatabaseName'
repair_allow_data_loss is the minimum repair level for the errors found by DBCC CHECKDB (DatabaseName).

Resolution

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

       Cumulative Update 11 for SQL Server 2017

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 2017

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.

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