[jira] [Commented] (SPARK-16958) Reuse subqueries within single query

["Ke Jia (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-16958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16743720#comment-16743720 ] 

Ke Jia commented on SPARK-16958:
--------------------------------

[~davies] hi, I left some comments in the PR[l14548|[https://github.com/apache/spark/pull/14548]]. Can you help to verify whether the subquery is reused or not? Thanks for your help!

> Reuse subqueries within single query
> ------------------------------------
>
>                 Key: SPARK-16958
>                 URL: https://issues.apache.org/jira/browse/SPARK-16958
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>            Reporter: Davies Liu
>            Assignee: Davies Liu
>            Priority: Major
>             Fix For: 2.1.0
>
>
> There could be same subquery within a single query, we could reuse the result without running it multiple times.



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