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https://issues.apache.org/jira/browse/SPARK-13221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen updated SPARK-13221:
------------------------------
Assignee: Xiao Li
> GroupingSets Returns an Incorrect Results
> -----------------------------------------
>
> Key: SPARK-13221
> URL: https://issues.apache.org/jira/browse/SPARK-13221
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.6.0, 2.0.0
> Reporter: Xiao Li
> Assignee: Xiao Li
> Priority: Critical
> Fix For: 2.0.0
>
>
> The following query returns a wrong result:
> {code}
> sql("select course, sum(earnings) as sum from courseSales group by course,
> earnings" +
> " grouping sets((), (course), (course, earnings))" +
> " order by course, sum").show()
> {code}
> Before the fix, the results are like
> {code}
> [null,null]
> [Java,null]
> [Java,20000.0]
> [Java,30000.0]
> [dotNET,null]
> [dotNET,5000.0]
> [dotNET,10000.0]
> [dotNET,48000.0]
> {code}
> After the fix, the results are corrected:
> {code}
> [null,113000.0]
> [Java,20000.0]
> [Java,30000.0]
> [Java,50000.0]
> [dotNET,5000.0]
> [dotNET,10000.0]
> [dotNET,48000.0]
> [dotNET,63000.0]
> {code}
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