alamb commented on issue #6560:
URL: 
https://github.com/apache/arrow-datafusion/issues/6560#issuecomment-1594917841

   I wonder if a reasonable approach would be to start with the code to cast 
to/from `List` and `FixedSizedList` -- that way there would at least be some 
path for working with data that came in as FixedSizedList
   
   So like
   
   ```sql
   SELECT 
     arrow_cast(my_column, 'List(Utf8)') -- would call the `cast` kernel to 
convert `my_column` to `LIstArray`
   FROM
     my_parquet_table_with_fixed_size_lists
   ```


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