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Posted to jira@arrow.apache.org by "Laszlo Keri (Jira)" <ji...@apache.org> on 2021/06/15 07:34:00 UTC

[jira] [Created] (ARROW-13079) [C++][Parquet] StreamReader.SkipColumns slow

Laszlo Keri created ARROW-13079:
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             Summary: [C++][Parquet] StreamReader.SkipColumns slow
                 Key: ARROW-13079
                 URL: https://issues.apache.org/jira/browse/ARROW-13079
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
    Affects Versions: 4.0.0
            Reporter: Laszlo Keri


Using StreamReader.SkipColumns seems to slow down processing quite a lot instead of speeding it up. The more columns I skip the slower it gets.



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