[jira] [Updated] (ARROW-823) [Python] Devise a means to serialize arrays of arbitrary Python objects in Arrow IPC messages

["Wes McKinney (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-823:
-------------------------------
    Fix Version/s: 0.14.0

> [Python] Devise a means to serialize arrays of arbitrary Python objects in Arrow IPC messages
> ---------------------------------------------------------------------------------------------
>
>                 Key: ARROW-823
>                 URL: https://issues.apache.org/jira/browse/ARROW-823
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: Python
>            Reporter: Wes McKinney
>            Priority: Major
>             Fix For: 0.14.0
>
>
> Practically speaking, this would involve a "custom" logical type that is "pyobject", represented physically as an array of 64-bit pointers. On serialization, this would need to be converted to a BinaryArray containing pickled objects as binary values
> At the moment, we don't yet have the machinery to deal with "custom" types where the in-memory representation is different from the on-wire representation. This would be a useful use case to work through the design issues
> Interestingly, if done properly, this would enable other Arrow implementations to manipulate (filter, etc.) serialized Python objects as binary blobs. 



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