When you view the lineage for a field that was renamed, the upstream lineage includes instances of the field with the original name and the new name.
For example, you have a mapping that joins customer and order tables that have some common field names. In the Joiner transformation, you resolve the field name conflict by prefixing fields in the customer table with cust_ and then configure the transformation to join data based on the customer ID.
In the Target transformation, you want to view the lineage for the cust_Customer_Region field.
Data Integration
includes the Customer_Region source field in the lineage as shown in the following image: