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https://issues.apache.org/jira/browse/ARROW-7660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Praveen Kumar resolved ARROW-7660.
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Fix Version/s: 0.16.0
Resolution: Fixed
Issue resolved by pull request 6265
[https://github.com/apache/arrow/pull/6265]
> [C++][Gandiva] Optimise castVarchar(string, int) function for single byte
> characters
> ------------------------------------------------------------------------------------
>
> Key: ARROW-7660
> URL: https://issues.apache.org/jira/browse/ARROW-7660
> Project: Apache Arrow
> Issue Type: Task
> Components: C++ - Gandiva
> Reporter: Projjal Chanda
> Assignee: Projjal Chanda
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.16.0
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> The current castVarchar function does byte by byte check for handling
> multibyte characters. Since most of the time string consists of single byte
> characters optimise it for that case and move to the slow path when multibyte
> characters detected.
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