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https://issues.apache.org/jira/browse/BEAM-12418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17549295#comment-17549295
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Danny McCormick commented on BEAM-12418:
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This issue has been migrated to https://github.com/apache/beam/issues/20900
> Add support for out-of-band pickling (pickle 5) in PickleCoder
> --------------------------------------------------------------
>
> Key: BEAM-12418
> URL: https://issues.apache.org/jira/browse/BEAM-12418
> Project: Beam
> Issue Type: Improvement
> Components: sdk-py-core
> Reporter: Brian Hulette
> Priority: P3
>
> dev@ discussion:
> https://lists.apache.org/thread.html/r266f37640901544927205b913d4903340d6c59c3d94905e5dda0db42%40%3Cdev.beam.apache.org%3E
> PickleCoder should support out-of-band pickling to avoid unnecessary memory
> copies for types that support it (including numpy and pandas types).
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