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https://issues.apache.org/jira/browse/SPARK-49653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-49653:
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Labels: pull-request-available (was: )
> Support single joins for full scalar subquery decorrelation
> -----------------------------------------------------------
>
> Key: SPARK-49653
> URL: https://issues.apache.org/jira/browse/SPARK-49653
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Andrey Gubichev
> Priority: Major
> Labels: pull-request-available
>
> We should introduce Single join operator to fully support scalar subqueries.
> The operator would ensure that the scalar subquery returns at most 1 row and
> issue a runtime error otherwise.
> Design doc:
> https://docs.google.com/document/d/1NTsvtBTB9XvvyRvH62QzWIZuw4hXktALUG1fBP7ha1Q/edit
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