Re: [I] [C++] Sorting dictionary array not implemented [arrow]

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

lorentzenchr commented on issue #29887:
URL: https://github.com/apache/arrow/issues/29887#issuecomment-1791955082

   With pyarrow version 14
   ```python
   import pyarrow as pa
   
   dict_array = pa.DictionaryArray.from_arrays([2, 0, 2, 1, 0], ["c", "a", "b"])
   dict_array.dictionary_decode()  # ["b", "c", "b", "a", "c"]
   
   dict_array.sort().dictionary_decode()  # ["a", "b", "b", "c", "c"]
   ```
   
   So it is just the alpha numerical sort order, not the order as given by the dictionary. I find that a bit unfortunate and don't find any discussion of it.
   


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