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https://issues.apache.org/jira/browse/SPARK-14950?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Herman van Hovell resolved SPARK-14950.
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Resolution: Fixed
Fix Version/s: 2.0.0
> Anti Join is broken when using BroadcastHashJoin's unique key path
> ------------------------------------------------------------------
>
> Key: SPARK-14950
> URL: https://issues.apache.org/jira/browse/SPARK-14950
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Herman van Hovell
> Assignee: Herman van Hovell
> Fix For: 2.0.0
>
>
> Anti Join is broken when using BroadcastHashJoin's unique key path. For
> example:
> {noformat}
> test("left anti join") {
> val df = Seq(1, 3).toDF("int")
> val df2 = Seq(1, 5).toDF("int2")
> checkAnswer(
> df.as("a").join(df2.as("b"), $"a.int" === $"b.int2", "left_anti"),
> Row(3) :: Nil)
> }
> {noformat}
> Returns {{df}} instead of an empty dataframe. Anti Join now behaves like a
> Semi Join.
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