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Posted to jira@arrow.apache.org by "Joris Van den Bossche (Jira)" <ji...@apache.org> on 2021/12/16 16:32:00 UTC

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

     [ https://issues.apache.org/jira/browse/ARROW-12290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joris Van den Bossche updated ARROW-12290:
------------------------------------------
    Component/s: Rust

> [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
>          Components: Rust
>            Reporter: Mike Seddon
>            Assignee: Mike Seddon
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 2h 40m
>  Remaining Estimate: 0h
>
> 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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