Antoine Pitrou created ARROW-2660:
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Summary: [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
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 array, to avoid or minimize copies when serializing foreign
objects.
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