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https://issues.apache.org/jira/browse/SPARK-18038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Herman van Hovell resolved SPARK-18038.
---------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.1.0

> Move output partitioning definition from UnaryNodeExec to its children
> ----------------------------------------------------------------------
>
>                 Key: SPARK-18038
>                 URL: https://issues.apache.org/jira/browse/SPARK-18038
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.0.1
>            Reporter: Tejas Patil
>            Assignee: Tejas Patil
>            Priority: Trivial
>             Fix For: 2.1.0
>
>
> This was a suggestion by [~rxin] over one of the dev list discussion : 
> http://apache-spark-developers-list.1001551.n3.nabble.com/Project-not-preserving-child-partitioning-td19417.html
> {noformat}
> I think this is very risky because preserving output partitioning should not 
> be a property of UnaryNodeExec (e.g. exchange).
> It would be better (safer) to move the output partitioning definition into 
> each of the operator and remove it from UnaryExecNode.
> {noformat}



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