[jira] [Assigned] (SPARK-11894) Incorrect results are returned when using null

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-11894?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-11894:
------------------------------------

    Assignee: Apache Spark

> Incorrect results are returned when using null
> ----------------------------------------------
>
>                 Key: SPARK-11894
>                 URL: https://issues.apache.org/jira/browse/SPARK-11894
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 1.6.0
>            Reporter: Xiao Li
>            Assignee: Apache Spark
>
> In DataSet APIs, the following two datasets are the same. 
>   Seq((new java.lang.Integer(0), "1"), (new java.lang.Integer(22), "2")).toDS()
>   Seq((null.asInstanceOf[java.lang.Integer],, "1"), (new java.lang.Integer(22), "2")).toDS()
> Note: java.lang.Integer is Nullable. 
> It could generate an incorrect result. For example, 
>     val ds1 = Seq((null.asInstanceOf[java.lang.Integer], "1"), (new java.lang.Integer(22), "2")).toDS()
>     val ds2 = Seq((null.asInstanceOf[java.lang.Integer], "1"), (new java.lang.Integer(22), "2")).toDS()//toDF("key", "value").as('df2)
>     val res1 = ds1.joinWith(ds2, lit(true)).collect()
> The expected result should be 
> ((null,1),(null,1))
> ((22,2),(null,1))
> ((null,1),(22,2))
> ((22,2),(22,2))
> The actual result is 
> ((0,1),(0,1))
> ((22,2),(0,1))
> ((0,1),(22,2))
> ((22,2),(22,2))



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