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Posted to issues@arrow.apache.org by "Mike Seddon (Jira)" <ji...@apache.org> on 2021/04/08 02:25:00 UTC

[jira] [Created] (ARROW-12290) [Rust][DataFusion] Add input_file_name function

Mike Seddon created ARROW-12290:
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             Summary: [Rust][DataFusion] Add input_file_name function
                 Key: ARROW-12290
                 URL: https://issues.apache.org/jira/browse/ARROW-12290
             Project: Apache Arrow
          Issue Type: Improvement
            Reporter: Mike Seddon
            Assignee: Mike Seddon


For lineage and diffing purposes (used by protocols like DeltaLake) it can be useful to know the source of input data for a Dataframe. This adds the `input_file_name` function which, like Spark, returns the name of the file being read, or NULL if not available.



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