[
https://issues.apache.org/jira/browse/SPARK-34474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
L. C. Hsieh resolved SPARK-34474.
---------------------------------
Fix Version/s: 3.2.0
Resolution: Fixed
Issue resolved by pull request 31595
[https://github.com/apache/spark/pull/31595]
> Remove unnecessary Union under Distinct like operators
> ------------------------------------------------------
>
> Key: SPARK-34474
> URL: https://issues.apache.org/jira/browse/SPARK-34474
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: L. C. Hsieh
> Assignee: L. C. Hsieh
> Priority: Major
> Fix For: 3.2.0
>
>
> For an Union under Distinct like operators, if its children are all the same,
> we can just keep one among them and remove the Union.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
