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https://issues.apache.org/jira/browse/SPARK-9444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Armbrust resolved SPARK-9444.
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Resolution: Duplicate
> RemoveEvaluationFromSort reorders sort order
> --------------------------------------------
>
> Key: SPARK-9444
> URL: https://issues.apache.org/jira/browse/SPARK-9444
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Michael Armbrust
> Assignee: Wenchen Fan
> Priority: Blocker
>
> {code}
> Seq((1,2,3,4)).toDF("a", "b", "c", "d").registerTempTable("test")
> scala> sqlContext.sql("SELECT * FROM test ORDER BY a + 1, b").queryExecution
> == Parsed Logical Plan ==
> 'Sort [('a + 1) ASC,'b ASC], true
> 'Project [unresolvedalias(*)]
> 'UnresolvedRelation [test], None
> == Optimized Logical Plan ==
> Project [a#4,b#5,c#6,d#7]
> Sort [b#5 ASC,_sortCondition#9 ASC], true
> LocalRelation [a#4,b#5,c#6,d#7,_sortCondition#9], [[1,2,3,4,2]]
> {code}
> Notice how we are now sorting by b before a + 1.
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