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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2022/10/28 20:02:00 UTC

[jira] [Commented] (SPARK-36124) Support set operators to be on correlation paths

    [ https://issues.apache.org/jira/browse/SPARK-36124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17625879#comment-17625879 ] 

Apache Spark commented on SPARK-36124:
--------------------------------------

User 'jchen5' has created a pull request for this issue:
https://github.com/apache/spark/pull/38432

> Support set operators to be on correlation paths
> ------------------------------------------------
>
>                 Key: SPARK-36124
>                 URL: https://issues.apache.org/jira/browse/SPARK-36124
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.2.0
>            Reporter: Allison Wang
>            Priority: Major
>
> A correlation path is defined as the sub-tree of all the operators that are on the path from the operator hosting the correlated expressions up to the operator producing the correlated values. 
> We want to support set operators such as union and intercept to be on correlation paths by adding them in DecorrelateInnerQuery. Please see page 391 for more details: [https://dl.gi.de/bitstream/handle/20.500.12116/2418/383.pdf] 



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