[jira] [Updated] (SPARK-18038) Move output partitioning definition from UnaryNodeExec to its children

["Reynold Xin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-18038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Reynold Xin updated SPARK-18038:
--------------------------------
    Assignee: Tejas Patil

> 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
>
> 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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