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https://issues.apache.org/jira/browse/ARROW-6883?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney updated ARROW-6883:
--------------------------------
    Priority: Major  (was: Blocker)

> [C++] Support sending delta DictionaryBatch or replacement DictionaryBatch in 
> IPC stream writer class
> -----------------------------------------------------------------------------------------------------
>
>                 Key: ARROW-6883
>                 URL: https://issues.apache.org/jira/browse/ARROW-6883
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>            Priority: Major
>             Fix For: 2.0.0
>
>
> I didn't see other JIRA issues about this, but this is one significant matter 
> to have complete columnar format coverage in the C++ library.
> This functionality will flow through to the various bindings, so it would be 
> helpful to add unit tests to assert that things work correctly e.g. in Python 
> from an end-user perspective



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