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https://issues.apache.org/jira/browse/SPARK-23947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16431431#comment-16431431
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Apache Spark commented on SPARK-23947:
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User 'rednaxelafx' has created a pull request for this issue:
https://github.com/apache/spark/pull/21016
> Add hashUTF8String convenience method to hasher classes
> -------------------------------------------------------
>
> Key: SPARK-23947
> URL: https://issues.apache.org/jira/browse/SPARK-23947
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Kris Mok
> Priority: Minor
>
> Add {{hashUTF8String()}} to the hasher classes to allow Spark SQL codegen to
> generate cleaner code for hashing {{UTF8String}}. No change in behavior
> otherwise.
> Although with the introduction of SPARK-10399, the code size for hashing
> {{UTF8String}} is already smaller, it's still good to extract a separate
> function in the hasher classes so that the generated code can stay clean.
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