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https://issues.apache.org/jira/browse/SPARK-9306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Rosen updated SPARK-9306:
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Issue Type: Sub-task (was: Bug)
Parent: SPARK-8947
> SortMergeJoin crashes when trying to join on unsortable columns
> ---------------------------------------------------------------
>
> Key: SPARK-9306
> URL: https://issues.apache.org/jira/browse/SPARK-9306
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 1.5.0
> Reporter: Josh Rosen
>
> When sort merge join is enabled, it's possible to crash at runtime when
> trying to join on two StructFields: the problem is that we don't support
> ordering by struct fields or arrays. When the join columns are unsortable
> then we should not choose the SMJ join strategy.
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