[GitHub] [arrow] chaokunyang opened a new issue, #35815: [Compute] Function 'utf8_trim' has no kernel matching input types (dictionary)

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

chaokunyang opened a new issue, #35815:
URL: https://github.com/apache/arrow/issues/35815

   ### Describe the bug, including details regarding any error messages, version, and platform.
   
   Arrow compute function `utf8_trim` doesn't support dictionary array:
   
   ```
   File ~/anaconda3/envs/py3.8/lib/python3.8/site-packages/pyarrow/_compute.pyx:367, in pyarrow._compute.Function.call()
   
   File ~/anaconda3/envs/py3.8/lib/python3.8/site-packages/pyarrow/error.pxi:144, in pyarrow.lib.pyarrow_internal_check_status()
   
   File ~/anaconda3/envs/py3.8/lib/python3.8/site-packages/pyarrow/error.pxi:121, in pyarrow.lib.check_status()
   
   ArrowNotImplementedError: Function 'utf8_trim' has no kernel matching input types (dictionary<values=string, indices=int64, ordered=0>)
   ```
   
   Reproduction script:
   ```python
   da = pa.DictionaryArray.from_arrays(pa.array([1,2,1,2,1,2,0,0]), pa.array(["abc", "b", "a"]))
   pc.utf8_trim(da, characters="bc")
   ```
   
   Decode DictionaryArray into StringArray will work.
   
   ### Component(s)
   
   C++


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