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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2017/11/10 06:05:00 UTC
[jira] [Assigned] (SPARK-22489) Shouldn't change broadcast join
buildSide if user clearly specified
[ https://issues.apache.org/jira/browse/SPARK-22489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-22489:
------------------------------------
Assignee: Apache Spark
> 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: Apache Spark
>
> 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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