Re: [I] [Python] How to do arrow table group by and split? [arrow]

["willshiao (via GitHub)" <gi...@apache.org>]

willshiao commented on issue #14882:
URL: https://github.com/apache/arrow/issues/14882#issuecomment-1800437413

   Also ran into this issue, and totally agree that it would be an useful addition to PyArrow. But in the meantime, a workaround is to convert it to a Polars dataframe (see [`polars.from_arrow`](https://pola-rs.github.io/polars/py-polars/html/reference/api/polars.from_arrow.html)), which is mostly zero-copy. You can then use the [`partition_by`](https://pola-rs.github.io/polars/py-polars/html/reference/dataframe/api/polars.DataFrame.partition_by.html) function. It's much faster than doing the equivalent operation in Pandas.


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