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Posted to issues@spark.apache.org by "Ke Jia (JIRA)" <ji...@apache.org> on 2019/01/17 01:57:00 UTC
[jira] [Commented] (SPARK-26639) The reuse subquery function maybe
does not work in SPARK SQL
[ https://issues.apache.org/jira/browse/SPARK-26639?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16744606#comment-16744606 ]
Ke Jia commented on SPARK-26639:
--------------------------------
[@davies|https://github.com/davies] [@hvanhovell|https://github.com/hvanhovell] [@gatorsmile|https://github.com/gatorsmile] can you help verify this issue? Thanks for your help!
> The reuse subquery function maybe does not work in SPARK SQL
> ------------------------------------------------------------
>
> Key: SPARK-26639
> URL: https://issues.apache.org/jira/browse/SPARK-26639
> Project: Spark
> Issue Type: Improvement
> Components: SQL, Web UI
> Affects Versions: 2.3.2, 2.4.0
> Reporter: Ke Jia
> Priority: Major
>
> The subquery reuse feature has done in [https://github.com/apache/spark/pull/14548]
> In my test, I found the visualized plan do show the subquery is executed once. But the stage of same subquery execute maybe not once.
>
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