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https://issues.apache.org/jira/browse/ARROW-5949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16885214#comment-16885214
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Andy Grove commented on ARROW-5949:
-----------------------------------
I'm not aware of any blockers. I expect this is just a case of nobody needing
the feature yet.
> [Rust] Implement DictionaryArray
> --------------------------------
>
> Key: ARROW-5949
> URL: https://issues.apache.org/jira/browse/ARROW-5949
> Project: Apache Arrow
> Issue Type: New Feature
> Components: Rust
> Reporter: David Atienza
> Assignee: Andy Grove
> Priority: Major
>
> I am pretty new to the codebase, but I have seen that DictionaryArray is not
> implemented in the Rust implementation.
> I went through the list of issues and I could not see any work on this. Is
> there any blocker?
>
> The specification is a bit
> [short|https://arrow.apache.org/docs/format/Layout.html#dictionary-encoding]
> or even
> [non-existant|https://arrow.apache.org/docs/format/Metadata.html#dictionary-encoding],
> so I am not sure how to implement it myself.
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