Similar to the question above, is it possible to explicitly update rows in already committed arguments? Not that I need this now, so please don't take this question with much importance, I'm just thinking about some possible future usages for Pinot in my company

There is upsert capability

Not exactly, although that could be enough. I was thinking more in the direction of having an "update only" operation - like, if the record doesn't exist, then don't insert anything. But in my specific case, it would be in a situation where we would know exactly what rows would need to be updated, so it would be an "upsert" but which in practice would end up always being an "update" 😄

Yep, backfill is supported.

Awesome 🙂