If you use partition record (such as going from csv to json) and grouping by a column say /something the output contains the split in json - however, the provenance input and output claims are the same (it's the original data from the input in my case the csv contents)?
A claim can contain one or more flowfiles and NiFi uses it to optimize storage for the content repository. It's totally possible that input and output flowfiles of a processor belong in the same claim.
Please see this article for an explanation of what claims are and how they are managed.
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