[jira] [Created] (ARROW-17719) [Python] Improve error message when all values in a column are null in a parquet partition

["Philipp Moritz (Jira)" <ji...@apache.org>]

Philipp Moritz created ARROW-17719:
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             Summary: [Python] Improve error message when all values in a column are null in a parquet partition
                 Key: ARROW-17719
                 URL: https://issues.apache.org/jira/browse/ARROW-17719
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Python
    Affects Versions: 9.0.0
            Reporter: Philipp Moritz
             Fix For: 10.0.0


There is a good bug report about this in [https://stackoverflow.com/a/70568419/10891801] and it still seems to be a problem.

Basically the error message is pretty bad if all values in a given column of a parquet partition are null. We should either handle this case better or give a better error message.



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