Hi @ameya ,

Scenario 1: Enabling Delta schema evolution in your table or at DLT pipeline level should suffice for the scenario of new fields being added to the schema. 

Scenario 2: The INSERT statement doesn't support schema evolution as described in Delta schema evolution. You can explore the MERGE INTO statement for INSERT/UPDATE scenarios, merges will support schema evolution but I believe there is no way to set different schemas based on the underlying operation.