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Posted to issues@spark.apache.org by "Dongjoon Hyun (Jira)" <ji...@apache.org> on 2026/02/15 19:23:00 UTC

[jira] [Closed] (SPARK-49819) Disable CollapseProject for correlated subqueries in projection over aggregate correctly

     [ https://issues.apache.org/jira/browse/SPARK-49819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dongjoon Hyun closed SPARK-49819.
---------------------------------

> Disable CollapseProject for correlated subqueries in projection over aggregate correctly
> ----------------------------------------------------------------------------------------
>
>                 Key: SPARK-49819
>                 URL: https://issues.apache.org/jira/browse/SPARK-49819
>             Project: Spark
>          Issue Type: Bug
>          Components: Optimizer
>    Affects Versions: 4.0.0
>            Reporter: Nick Young
>            Assignee: Nick Young
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.5.4, 4.0.0
>
>
> CollapseProject should block collapsing with an aggregate if any correlated subquery is present. There are other correlated subqueries that are not ScalarSubquery that are not accounted for here.



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