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https://issues.apache.org/jira/browse/SPARK-3285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin resolved SPARK-3285.
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Resolution: Fixed
Fix Version/s: 1.2.0
> Using values.sum is easier to understand than using values.foldLeft(0)(_ + _)
> -----------------------------------------------------------------------------
>
> Key: SPARK-3285
> URL: https://issues.apache.org/jira/browse/SPARK-3285
> Project: Spark
> Issue Type: Test
> Components: Examples
> Affects Versions: 1.0.2
> Reporter: Yadong Qi
> Fix For: 1.2.0
>
>
> def sumB >: A: B = foldLeft(num.zero)(num.plus)
> Using values.sum is easier to understand than using values.foldLeft(0)(_ + ),
> so we'd better use values.sum instead of values.foldLeft(0)( + _)
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