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https://issues.apache.org/jira/browse/ARROW-5981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francois Saint-Jacques resolved ARROW-5981.
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Fix Version/s: 1.0.0
Resolution: Fixed
Issue resolved by pull request 6347
[https://github.com/apache/arrow/pull/6347]
> [C++] DictionaryBuilder<T> initialization with Array can fail silently
> ----------------------------------------------------------------------
>
> Key: ARROW-5981
> URL: https://issues.apache.org/jira/browse/ARROW-5981
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Wes McKinney
> Assignee: Antoine Pitrou
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> See
> https://github.com/apache/arrow/blob/master/cpp/src/arrow/array/builder_dict.cc#L267
> I think it would be better to expose {{InsertValues}} on
> {{DictionaryBuilder}} and initialize from a known dictionary that way
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