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https://issues.apache.org/jira/browse/ARROW-5355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rok Mihevc updated ARROW-5355:
------------------------------
External issue URL: https://github.com/apache/arrow/issues/21814
> [C++] DictionaryBuilder provides information to determine array builder type
> at run-time
> ----------------------------------------------------------------------------------------
>
> Key: ARROW-5355
> URL: https://issues.apache.org/jira/browse/ARROW-5355
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Kouhei Sutou
> Priority: Major
>
> This is needed for Arrow GLib. In Arrow GLib, we need to determine how to
> wrap Arrow C++ `ArrayBuilder` at run-time. `ArrayBuilder` may be passed as a
> generic `ArrayBuilder` instead of concrete `DictionaryBuilder`. (e.g.
> `RecordBatchBuilder::GetField()`)
> See also: https://github.com/apache/arrow/pull/4316#issuecomment-492995395
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