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https://issues.apache.org/jira/browse/ARROW-1924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16290106#comment-16290106
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ASF GitHub Bot commented on ARROW-1924:
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pcmoritz opened a new pull request #1420: ARROW-1924: [Python] Bring back
pickle=True option for serialization
URL: https://github.com/apache/arrow/pull/1420
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> [Python] Bring back pickle=True option for serialization
> --------------------------------------------------------
>
> Key: ARROW-1924
> URL: https://issues.apache.org/jira/browse/ARROW-1924
> Project: Apache Arrow
> Issue Type: Bug
> Reporter: Philipp Moritz
> Labels: pull-request-available
>
> We need to revert https://issues.apache.org/jira/browse/ARROW-1758
> The reason is that the semantics for pickle=True is slightly different from
> just using (cloud-)pickle as the custom serializer:
> If pickle=True is used, the object can be deserialized in any process, even
> if a deserializer for that type_id has not been registered in that process.
> On the other hand, if (cloud-)pickle is used as a custom serializer, the
> object can only be deserialized if pyarrow has the type_id registered and can
> call the deserializer.
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