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https://issues.apache.org/jira/browse/SPARK-26599?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun closed SPARK-26599.
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> BroardCast hint can not work with PruneFileSourcePartitions
> -----------------------------------------------------------
>
> Key: SPARK-26599
> URL: https://issues.apache.org/jira/browse/SPARK-26599
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: eaton
> Priority: Major
>
> BroardCast hint can not work with `PruneFileSourcePartitions`, for example,
> when the filter condition p is a partition field, table b in SQL below cannot
> be broadcast.
> ` sql("select /*+ broadcastjoin(b) */ * from (select a from empty_test where
> p=1) a " +
> "join (select a,b from par_1 where p=1) b on a.a=b.a").explain`
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