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@nitya-signoz can answer this

I would appreciate it a lot! 🙂 I think my core question is : "can I pull all the keys out of the "body" (which is just a JSON string) and put them at the top level, so they can be arbitrarily used as columns in the List View". Keys are arbitrary based on the application and it would be annoying to have to keep editing the config to statically define them.

Yes you can for that you will have to parse your log body https://signoz.io/docs/userguide/logs_fields/#creating-log-fields ex:- https://github.com/SigNoz/logs-benchmark/blob/0b2451e6108d8fa5fdd5808c4e174bd52b9d55d3/signoz/signoz-client/otel-collector-config.yaml#L12