HI Druid folks, I am using streaming Kafka and in source i have MS SQL server, if in case any changes in source system like adding new column then how that column we can use in current running Datasource in Apache Druid.

i don't have much to say about MS SQL specifically, but in general for reflecting changes in a source system automatically, try looking into the

useSchemaDiscovery

feature. it will automatically add new columns as they show up in the source

Thanks Gian Merlino :)