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Posted to issues@spark.apache.org by "Wenchen Fan (JIRA)" <ji...@apache.org> on 2016/04/29 09:32:12 UTC
[jira] [Resolved] (SPARK-12660) Rewrite except using anti-join
[ https://issues.apache.org/jira/browse/SPARK-12660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan resolved SPARK-12660.
---------------------------------
Resolution: Fixed
Fix Version/s: 2.0.0
Issue resolved by pull request 12736
[https://github.com/apache/spark/pull/12736]
> Rewrite except using anti-join
> ------------------------------
>
> Key: SPARK-12660
> URL: https://issues.apache.org/jira/browse/SPARK-12660
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Reynold Xin
> Fix For: 2.0.0
>
>
> Similar to SPARK-12656, we can rewrite except in the logical level using anti-join. This way, we can take advantage of all the benefits of join implementations (e.g. managed memory, code generation, broadcast joins).
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