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https://issues.apache.org/jira/browse/SPARK-8301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14582691#comment-14582691
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Tarek Auel edited comment on SPARK-8301 at 6/11/15 11:45 PM:
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Another approach could be:
(0 until b.length).forall(( i ) => b( i ) == bytes( i ))
In theory this could be parallelised,
was (Author: tarekauel):
Another approach could be:
(0 until b.length).forall((i) => b(i) == bytes(i))
In theory this could be parallelised,
> Improve UTF8String substring/startsWith/endsWith/contains performance
> ---------------------------------------------------------------------
>
> Key: SPARK-8301
> URL: https://issues.apache.org/jira/browse/SPARK-8301
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Reynold Xin
> Priority: Critical
>
> Many functions in UTF8String are unnecessarily expensive.
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