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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2019/06/14 13:23:00 UTC

[jira] [Created] (ARROW-5610) [Python] Define extension type in Python to "receive" a foreign extension type

Wes McKinney created ARROW-5610:
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             Summary: [Python] Define extension type in Python to "receive" a foreign extension type
                 Key: ARROW-5610
                 URL: https://issues.apache.org/jira/browse/ARROW-5610
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Python
            Reporter: Wes McKinney
             Fix For: 0.14.0


In work in ARROW-840, a static {{arrow.py_extension_type}} name is used. There will be cases where an extension type is coming from another programming language (e.g. Java), so it would be useful to be able to "plug in" a Python extension type subclass that will be used to deserialize the extension type coming over the wire. This has some different API requirements since the serialized representation of the type will not have knowledge of Python pickling, etc. 



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