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https://issues.apache.org/jira/browse/SPARK-36124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon reassigned SPARK-36124:
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Assignee: Allison Wang
> 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
> Assignee: 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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