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https://issues.apache.org/jira/browse/SPARK-19419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-19419:
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Assignee: Apache Spark (was: Xiao Li)
> Unable to detect all the cases of cartesian products when
> spark.sql.crossJoin.enabled is false
> ----------------------------------------------------------------------------------------------
>
> Key: SPARK-19419
> URL: https://issues.apache.org/jira/browse/SPARK-19419
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.1.0
> Reporter: Xiao Li
> Assignee: Apache Spark
>
> The existing detection is unable to cover all the cartesian product cases.
> For example,
> - Case 1) having non-equal predicates in join conditiions of an inner join.
> - Case 2) equi-join's key columns are not sortable and both sides are not
> small enough for broadcasting.
> This PR is to move the cross-join detection back to
> `BroadcastNestedLoopJoinExec` and `CartesianProductExec`.
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