Feature request or enhancement

The Debezium connector for SQL-server does not support tables that has primary keys with user defined datatypes. For more detailed information about the problem, see thread https://debezium.zulipchat.com/#narrow/stream/348252-community-sqlserver/topic/The.20column.20''.20is.20referenced.20as.20PRIMARY.20KEY.2C.20but.20a.20matching.20c/near/432168856 

Which use case/requirement will be addressed by the proposed feature?

In our case, we have a source DB where the vast majority of the tables has User Defined Datatypes in their primary keys. Therefore, this would be a great enabler for us and we can proceed with using debezium as source connector. This would also help future users that might come across the same problem.

Implementation ideas (optional)

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