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https://issues.apache.org/jira/browse/SPARK-7683?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-7683:
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Assignee: (was: Apache Spark)
> Confusing behavior of fold function of RDD in pyspark
> -----------------------------------------------------
>
> Key: SPARK-7683
> URL: https://issues.apache.org/jira/browse/SPARK-7683
> Project: Spark
> Issue Type: Sub-task
> Components: PySpark
> Affects Versions: 1.3.1
> Reporter: Ai He
> Priority: Minor
> Labels: releasenotes
>
> This will make the “fold” function consistent with the "fold" in rdd.scala
> and other "aggregate" functions where “acc” goes first. Otherwise, users have
> to write a lambda function like “lambda x, y: op(y, x)” if they want to use
> “zeroValue” to change the result type.
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