[jira] [Created] (ARROW-10440) [C++][Dataset][Python] Add a callback to visit file writers just before Finish()

[Ben Kietzman (Jira)]

Ben Kietzman created ARROW-10440:
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             Summary: [C++][Dataset][Python] Add a callback to visit file 
writers just before Finish()
                 Key: ARROW-10440
                 URL: https://issues.apache.org/jira/browse/ARROW-10440
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
    Affects Versions: 2.0.0
            Reporter: Ben Kietzman
            Assignee: Ben Kietzman
             Fix For: 3.0.0


This will fill the role of (for example) {{metadata_collector}} or allow stats 
to be embedded in IPC file footer metadata.



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