[
https://issues.apache.org/jira/browse/ARROW-11838?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Antoine Pitrou reassigned ARROW-11838:
--------------------------------------
Assignee: Joris Peeters
> [C++] Support reading IPC data with shared dictionaries
> -------------------------------------------------------
>
> Key: ARROW-11838
> URL: https://issues.apache.org/jira/browse/ARROW-11838
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Joris Peeters
> Assignee: Joris Peeters
> Priority: Minor
>
> The Arrow format supports dictionaries being re-used across multiple columns.
> At present, neither reading nor writing these is supported from C++ (and thus
> Python).
> Support for writing these would require extending the interfaces, but reading
> might be a relatively quick win - and this issue is concerned with the latter
> only.
> The Java implementation supports writing, so can be used to generate test
> data.
> Once the C++ side is handled, pyarrow should automatically be able to convert
> such tables to pandas, with appropriate use of categoricals. This should also
> be verified, and otherwise addressed.
>
>
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
