Hi @Retired_mod 

Just a last question, what would happen if someone decided to change the name of one columns in the source system? For example, if someone renames the column "ID" for "cust_id" in the customer table? how Delta Lake format now will know that the values in the "cust_id" column are referencing the same values as in the "ID" column considering this statement "while adding additional features such as versioning, schema enforcement, etc.

Thank you once more time for your valuable insight.

Regards

#medallionarchitecture