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https://issues.apache.org/jira/browse/SPARK-22470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-22470:
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Assignee: Apache Spark
> Doc that functions.hash is also used internally for shuffle and bucketing
> -------------------------------------------------------------------------
>
> Key: SPARK-22470
> URL: https://issues.apache.org/jira/browse/SPARK-22470
> Project: Spark
> Issue Type: Documentation
> Components: Documentation, SQL
> Affects Versions: 2.2.0
> Reporter: Andrew Ash
> Assignee: Apache Spark
>
> https://issues.apache.org/jira/browse/SPARK-12480 added a hash function that
> appears to be the same hash function as what Spark uses internally for
> shuffle and bucketing.
> One of my users would like to bake this assumption into code, but is unsure
> if it's a guarantee or a coincidence that they're the same function. Would
> it be considered an API break if at some point the two functions were
> different, or if the implementation of both changed together?
> We should add a line to the scaladoc to clarify.
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