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https://issues.apache.org/jira/browse/SPARK-34420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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L. C. Hsieh resolved SPARK-34420.
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Fix Version/s: 3.2.0
Resolution: Fixed
Issue resolved by pull request 31547
[https://github.com/apache/spark/pull/31547]
> Throw exception if non-streaming Deduplicate is not replaced by aggregate
> -------------------------------------------------------------------------
>
> Key: SPARK-34420
> URL: https://issues.apache.org/jira/browse/SPARK-34420
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: L. C. Hsieh
> Assignee: L. C. Hsieh
> Priority: Minor
> Fix For: 3.2.0
>
>
> We replace some operations in the query optimizer. For them we throw some
> exceptions accordingly in query planner if these logical nodes are not
> replaced. But `Deduplicate` is missing and it opens a possible hole. For code
> consistency and to prevent possible unexpected query planning error, we
> should add similar exception case to query planner.
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