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Posted to jira@arrow.apache.org by "Mike (Jira)" <ji...@apache.org> on 2021/12/08 00:52:00 UTC

[jira] [Created] (ARROW-15018) DataFrame Index modified during Feather serialization round trip

Mike created ARROW-15018:
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             Summary: DataFrame Index modified during Feather serialization round trip
                 Key: ARROW-15018
                 URL: https://issues.apache.org/jira/browse/ARROW-15018
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
    Affects Versions: 6.0.1, 3.0.0
            Reporter: Mike


Some (or all) indexes are converted to a {{RangeIndex}} after a Feather serialization/deserialization round trip. I came across this in pyarrow 3.0.0 and 6.0.1 for both a {{MultiIndex}} and an empty dataframe ({{{}Dataframe.index{}}} -> {{{}RangeIndex{}}}).

 

Please feel free to modify priority and issue type as appropriate, thanks!



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