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Posted to github@arrow.apache.org by "davlee1972 (via GitHub)" <gi...@apache.org> on 2023/10/09 22:12:08 UTC

Re: [I] [Python] Add rename_columns to DataSet [arrow]

davlee1972 commented on issue #36593:
URL: https://github.com/apache/arrow/issues/36593#issuecomment-1753963333

   Shouldn't dataset() just take the same parameters as to_table()? The difference is that to_table() produces a materialized view while dataset() creates a logical view.. This would include columns whether they are a subset or computed/renamed from the original dataset..
   
   I also not sure why there is a dataset.scanner class.. It looks logical, but you can't perform a join with it against another dataset.
   


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