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https://issues.apache.org/jira/browse/SPARK-13630?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-13630:
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    Assignee: Apache Spark

> Add optimizer rule to collapse sorts
> ------------------------------------
>
>                 Key: SPARK-13630
>                 URL: https://issues.apache.org/jira/browse/SPARK-13630
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 1.6.0
>            Reporter: Sunitha Kambhampati
>            Assignee: Apache Spark
>             Fix For: 2.0.0
>
>
> It is possible to collapse  adjacent sorts  and keep the last one.    This 
> task is to add optimizer rule to collapse adjacent sorts if possible. 



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