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From "Xiao Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-22489) Shouldn't change broadcast join buildSide if user clearly specified
Date Wed, 31 Jan 2018 16:49:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-22489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao Li updated SPARK-22489:
----------------------------
    Labels:   (was: release-notes)

> Shouldn't change broadcast join buildSide if user clearly specified
> -------------------------------------------------------------------
>
>                 Key: SPARK-22489
>                 URL: https://issues.apache.org/jira/browse/SPARK-22489
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Yuming Wang
>            Assignee: Yuming Wang
>            Priority: Major
>             Fix For: 2.3.0
>
>
> How to reproduce:
> {code:java}
> import org.apache.spark.sql.execution.joins.BroadcastHashJoinExec
> spark.createDataFrame(Seq((1, "4"), (2, "2"))).toDF("key", "value").createTempView("table1")
> spark.createDataFrame(Seq((1, "1"), (2, "2"))).toDF("key", "value").createTempView("table2")
> val bl = sql(s"SELECT /*+ MAPJOIN(t1) */ * FROM table1 t1 JOIN table2 t2 ON t1.key =
t2.key").queryExecution.executedPlan
> println(bl.children.head.asInstanceOf[BroadcastHashJoinExec].buildSide)
> {code}
> The result is {{BuildRight}}, but should be {{BuildLeft}}.



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