[
https://issues.apache.org/jira/browse/SPARK-12656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Apache Spark reassigned SPARK-12656:
------------------------------------
Assignee: (was: Apache Spark)
> Rewrite Intersect phyiscal plan using semi-join
> -----------------------------------------------
>
> Key: SPARK-12656
> URL: https://issues.apache.org/jira/browse/SPARK-12656
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Reynold Xin
>
> Our current Intersect physical operator simply delegates to RDD.intersect. We
> should remove the Intersect physical operator and simply transform a logical
> intersect into a semi-join. This way, we can take advantage of all the
> benefits of join implementations (e.g. managed memory, code generation,
> broadcast joins).
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
