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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/01/12 09:11:39 UTC
[jira] [Commented] (SPARK-12768) Remove CaseKeyWhen expression
[ https://issues.apache.org/jira/browse/SPARK-12768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15093506#comment-15093506 ]
Apache Spark commented on SPARK-12768:
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User 'rxin' has created a pull request for this issue:
https://github.com/apache/spark/pull/10722
> Remove CaseKeyWhen expression
> -----------------------------
>
> Key: SPARK-12768
> URL: https://issues.apache.org/jira/browse/SPARK-12768
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Reynold Xin
>
> CaseKeyWhen was added to improve the performance of "case a when ..." when we did not have common subexpression elimination. We now have that so we can remove CaseKeyWhen.
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