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https://issues.apache.org/jira/browse/ARROW-14126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17448130#comment-17448130
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Antoine Pitrou commented on ARROW-14126:
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I'd rather have a general transcoding compute function rather than add locale
support to many string functions.
> [C++] Add locale support for relevant string compute functions
> --------------------------------------------------------------
>
> Key: ARROW-14126
> URL: https://issues.apache.org/jira/browse/ARROW-14126
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Eduardo Ponce
> Priority: Major
> Labels: kernel
> Fix For: 7.0.0
>
>
> String compute functions do not make use of locale settings for case changing
> transformations, string comparisons, and number to string casting. Arrow does
> provides UTF-8 string kernels to handle localization standardization. It
> would be good to add locale support for string kernels that are affected by
> it.
> The following are string functions that take a `locale` option as its second
> argument:
> * str_to_lower
> * str_to_upper
> * str_to_title
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