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https://issues.apache.org/jira/browse/SPARK-12700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15088364#comment-15088364
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Apache Spark commented on SPARK-12700:
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User 'davies' has created a pull request for this issue:
https://github.com/apache/spark/pull/10653
> SortMergeJoin and BroadcastHashJoin should support condition
> ------------------------------------------------------------
>
> Key: SPARK-12700
> URL: https://issues.apache.org/jira/browse/SPARK-12700
> Project: Spark
> Issue Type: Improvement
> Reporter: Davies Liu
>
> Right now, We use a Filter follow SortMergeJoin or BroadcastHashJoin for
> conditions, the result projection of join could be very expensive if they
> generate lots of rows (could be reduce mostly by condition).
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