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[jira] [Created] (ARROW-3928) [Python] Add option to deduplicate PyBytes / PyString / PyUnicode objects in Table.to_pandas conversion path


Wes McKinney created ARROW-3928:
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             Summary: [Python] Add option to deduplicate PyBytes / PyString / PyUnicode objects in Table.to_pandas conversion path
                 Key: ARROW-3928
                 URL: https://issues.apache.org/jira/browse/ARROW-3928
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Python
            Reporter: Wes McKinney
             Fix For: 0.12.0


While hashing carries a performance penalty, the memory savings can be huge. See also ARROW-3911 -- we should develop some reusable machinery for conversions that yield Python objects



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