Symptoms
Assume that you use the Fuzzy Lookup transformation in SQL Server Integration Services (SSIS). When you update or delete a reference table that the transformation uses, you receive an error message that resembles the following:
Msg 6549, Level 16, State 1, Procedure sp_FuzzyLookupTableMaintenanceInvoke, Line 0
A .NET Framework error occurred during execution of user defined routine or aggregate 'sp_FuzzyLookupTableMaintenanceInvoke':
System.Data.SqlClient.SqlException: User defined routine, trigger or aggregate tried to rollback a transaction that is not started in that CLR level. An exception will be thrown to prevent execution of rest of the user defined routine, trigger or aggregate.
Resolution
This problem is fixed in the following update for SQL Server:
Cumulative Update 9 for SQL Server 2017
About SQL Server builds
Each new build 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:
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 standard terminology Microsoft uses to describe software updates.
