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If your schema is changing and you are happy to let Druid follow along with the changes: > You can either manually specify the dimensions or take advantage of schema auto-discovery where you allow Druid to infer all or some of the schema for your data. This means that you don’t have to explicitly specify your dimensions and their type. from https://druid.apache.org/docs/latest/ingestion/ingestion-spec#dimensionsspec

Thanks @Kyle Hoondert that was really helpful