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https://issues.apache.org/jira/browse/ARROW-11368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17274108#comment-17274108
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Yibo Cai commented on ARROW-11368:
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It does makes python code more user friendly, but it also leads to harder to
use c++ interface.
I would like to cancel this request as won't do.
That said, I did implemented according patch, uploaded here in case one day I
changed mind.
[^return-scalar.patch]
> [C++][Compute] Return scalar if only one mode or quantile is required
> ---------------------------------------------------------------------
>
> Key: ARROW-11368
> URL: https://issues.apache.org/jira/browse/ARROW-11368
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Yibo Cai
> Assignee: Yibo Cai
> Priority: Major
> Attachments: return-scalar.patch
>
>
> Mode and quantile kernels support returning multiple values and always return
> array to hold multiple values. If only one value is required, an array of
> size 1 is returned. It's better to return a scalar instead in this case.
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