Symptoms
Consider the following scenario:
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You create a clustered columnstore index on a table in Microsoft SQL Server 2014.
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You drop the first column of the table.
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You restart SQL Server, and then delete rows from the table.
In this scenario, an access violation occurs.
Resolution
Cumulative Update information
The issue was first fixed in the following cumulative update of 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. We recommend that you download and install the latest cumulative updates for SQL Server:
Workaround
To work around this issue, rebuild the affected index.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
