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https://issues.apache.org/jira/browse/SPARK-7322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14525131#comment-14525131
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Olivier Girardot commented on SPARK-7322:
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With this it would be possible to compute a rolling mean in a separate column,
right ?
> Add DataFrame DSL for window function support
> ---------------------------------------------
>
> Key: SPARK-7322
> URL: https://issues.apache.org/jira/browse/SPARK-7322
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
>
> A good reference implementation:
> http://www.jooq.org/doc/3.6/manual-single-page/#window-functions
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