Really interesting article about Uber doing schema-agnostic log aggregations…but they went with ClickHouse, not Pinot?!? https://eng.uber.com/logging/

Looks like they made this decisionn before Pinot added support for json structure. The design in that article looks complex.. using json indexing is probably much simpler.

yeah, at the time when they made the decision, json index was not available in pinot yet.