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https://issues.apache.org/jira/browse/SPARK-13325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Herman van Hovell reassigned SPARK-13325:
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Assignee: Herman van Hovell
> Create a high-quality 64-bit hashcode expression
> ------------------------------------------------
>
> Key: SPARK-13325
> URL: https://issues.apache.org/jira/browse/SPARK-13325
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Herman van Hovell
> Assignee: Herman van Hovell
>
> Spark currently lacks a high quality 64-bit hashcode. This is especially
> useful for the HyperLogLog++ aggregate & potentially other probabilistic
> datastructures.
> I have been looking at xxHash for a while now, and I'd like to see if we can
> get the same (stellar) performance in Java/Scala.
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