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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2020/09/15 17:05:32 UTC

[GitHub] [arrow] nealrichardson commented on pull request #8188: ARROW-9924: [C++][Dataset] Enable per-column parallelism for single ParquetFileFragment scans

nealrichardson commented on pull request #8188:
URL: https://github.com/apache/arrow/pull/8188#issuecomment-692848891


   Can you run some kind of benchmark or ad-hoc performance check, including with the file/shape in question here, to see the effects? I see two changes (batch size and single-file behavior change) so we should be clear about the effects.


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