[jira] [Resolved] (ARROW-2660) [Python] Experiment with zero-copy pickling

["Antoine Pitrou (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-2660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Pitrou resolved ARROW-2660.
-----------------------------------
       Resolution: Fixed
    Fix Version/s: 0.10.0

Issue resolved by pull request 2161
[https://github.com/apache/arrow/pull/2161]

> [Python] Experiment with zero-copy pickling
> -------------------------------------------
>
>                 Key: ARROW-2660
>                 URL: https://issues.apache.org/jira/browse/ARROW-2660
>             Project: Apache Arrow
>          Issue Type: Wish
>          Components: Python
>    Affects Versions: 0.9.0
>            Reporter: Antoine Pitrou
>            Assignee: Antoine Pitrou
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.10.0
>
>          Time Spent: 2h 50m
>  Remaining Estimate: 0h
>
> PEP 574 has an implementation ready and a PyPI-available backport (at [https://pypi.org/project/pickle5/] ). Adding experimental support for it would allow for zero-copy pickling of Arrow arrays, columns, etc.
> I think it mainly involves implementing {{reduce_ex}} on the {{Buffer}} class, as described in [https://www.python.org/dev/peps/pep-0574/#producer-api]
> In addition, the consumer API added by PEP 574 could be used in Arrow's serialization layer, to avoid or minimize copies when serializing foreign objects.



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