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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/01/20 11:10:48 UTC

[GitHub] [arrow] jorgecarleitao commented on pull request #9271: ARROW-11300: [Rust][DataFusion] Further performance improvements on hash aggregation with small groups [WIP]

jorgecarleitao commented on pull request #9271:
URL: https://github.com/apache/arrow/pull/9271#issuecomment-763529613


   Yes, slicing is suboptimal atm. Also, IMO it should not be the `Array` to implement that method, but each implementation individually. I haven't touch that part yet, though.
   
   That analysis is really cool, though. How did you came up with that????? 😮 Any blog post or readme??? :P


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