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When you copy data from partitioned tables into a clustered columnstore index, an access violation (AV) dump file is generated in sqlmin.dll!ColumnStoreHROW::DeepCopyRow.


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

Cumulative Update 17 for SQL Server 2019

Each new cumulative update for SQL Server contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for your version of SQL Server:

Latest cumulative update for SQL Server 2019


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


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

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