Joris Van den Bossche created ARROW-6115:
--------------------------------------------

             Summary: [Python] support LargeList, LargeString, LargeBinary in 
conversion to pandas
                 Key: ARROW-6115
                 URL: https://issues.apache.org/jira/browse/ARROW-6115
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Python
            Reporter: Joris Van den Bossche


General python support for those 3 new types has been added: ARROW-6000, 
ARROW-6084

However, one aspect that is not yet implemented is conversion to pandas (or 
numpy array):

{code}
In [67]: a = pa.array(['a', 'b', 'c'], pa.large_string()) 

In [68]: a.to_pandas() 
...
ArrowNotImplementedError: large_utf8

In [69]: pa.table({'a': a}).to_pandas()
...
ArrowNotImplementedError: No known equivalent Pandas block for Arrow data of 
type large_string is known.
{code}



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