FIX: Access violation when you run a query that uses clustered columnstore index with trace flag 2389, 2390, or 4139


Assume that you have a table that uses clustered columnstore index in an instance of Microsoft SQL Server 2014, and you either have trace flag 2389 and 2390 or trace flag 4139 enabled. When you run a query that uses this table, an access violation may occur.


The issue was first fixed in the following cumulative update of SQL Server:
Recommendation: Install the latest cumulative update for SQL Server


To work around this issue, disable trace flag 2389 and 2390, or disable trace flag 4139.


Learn about the terminology that Microsoft uses to describe software updates.


Article ID: 3189645 - Last Review: Oct 18, 2016 - Revision: 1