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https://issues.apache.org/jira/browse/ARROW-7302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16987238#comment-16987238
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Wes McKinney commented on ARROW-7302:
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I agree with using the {{Dictionary32Builder}} to avoid having to normalize
indices after converting chunks.
> [C++] CSV: allow converting a column to a specific dictionary type
> ------------------------------------------------------------------
>
> Key: ARROW-7302
> URL: https://issues.apache.org/jira/browse/ARROW-7302
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Antoine Pitrou
> Priority: Major
>
> We can probably limit ourselves to {{dictionary(int32, utf8)}}.
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