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Posted to issues@arrow.apache.org by "0x26res (via GitHub)" <gi...@apache.org> on 2026/03/13 10:14:48 UTC

[I] Implement DictionaryArray converter for type pa.large_string and pa.large_binary [arrow]

0x26res opened a new issue, #49505:
URL: https://github.com/apache/arrow/issues/49505

   ### Describe the enhancement requested
   
   I get these error when using `pa.array` with dictionary using large binary / string passed as values
   
   ```
   pyarrow.lib.ArrowNotImplementedError: DictionaryArray converter for type dictionary<values=large_string, indices=int32, ordered=0> not implemented
   pyarrow.lib.ArrowNotImplementedError: DictionaryArray converter for type dictionary<values=large_binary, indices=int32, ordered=0> not implemented
   ```
   
   ```python
   def test_arrow_missing_function():
       pa.array([], pa.dictionary(pa.int32(), pa.string()))
       pa.array([], pa.dictionary(pa.int32(), pa.binary()))
   
       with pytest.raises(
           pa.ArrowNotImplementedError,
           match="DictionaryArray converter for type dictionary\<values=large_string, indices=int32, ordered=0\> not implemented",
       ):
           pa.array([], pa.dictionary(pa.int32(), pa.large_string()))
   
       with pytest.raises(
           pa.ArrowNotImplementedError,
           match="DictionaryArray converter for type dictionary\<values=large_binary, indices=int32, ordered=0\> not implemented",
       ):
           pa.array([], pa.dictionary(pa.int32(), pa.large_binary()))
   
   ```
   
   ### Component(s)
   
   Python


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Re: [I] Implement DictionaryArray converter for type pa.large_string and pa.large_binary [arrow]

Posted by "fotinosk (via GitHub)" <gi...@apache.org>.
fotinosk commented on issue #49505:
URL: https://github.com/apache/arrow/issues/49505#issuecomment-4063870977

   take


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