Druid Data Cookbook: Deconstructing Nested JSON Objects

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In the previous episode of the Druid Data Cookbook , I showed how to extract and process all elements out of a nested array of objects in Druid. But what if the elements you want to process are scattered over different levels of the object hierarchy? By extending the UNNEST paradigm, we can handle these cases too! A data sample Our data looks like this: { "timestamp" : "2024-09-01" , "id" : "1" ,…

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