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https://issues.apache.org/jira/browse/SPARK-21647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-21647.
---------------------------------
Resolution: Fixed
Assignee: Xiao Li
Fix Version/s: 2.3.0
2.2.1
> SortMergeJoin failed when using CROSS
> -------------------------------------
>
> Key: SPARK-21647
> URL: https://issues.apache.org/jira/browse/SPARK-21647
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Xiao Li
> Assignee: Xiao Li
> Fix For: 2.2.1, 2.3.0
>
>
> {noformat}
> val df = Seq((1, 1)).toDF("i", "j")
> df.createOrReplaceTempView("T")
> withSQLConf(SQLConf.AUTO_BROADCASTJOIN_THRESHOLD.key -> "-1") {
> sql("select * from (select a.i from T a cross join T t where t.i = a.i) as
> t1 " +
> "cross join T t2 where t2.i = t1.i").explain(true)
> }
> {noformat}
> The above code could cause the following exception:
> {noformat}
> SortMergeJoinExec should not take Cross as the JoinType
> java.lang.IllegalArgumentException: SortMergeJoinExec should not take Cross
> as the JoinType
> at
> org.apache.spark.sql.execution.joins.SortMergeJoinExec.outputOrdering(SortMergeJoinExec.scala:100)
> {noformat}
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