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https://issues.apache.org/jira/browse/SPARK-40164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-40164:
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Assignee: Apache Spark
> The partitionSpec should be distinct keys after filter one row of row_number
> ----------------------------------------------------------------------------
>
> Key: SPARK-40164
> URL: https://issues.apache.org/jira/browse/SPARK-40164
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Wan Kun
> Assignee: Apache Spark
> Priority: Minor
>
> For query
> {code:sql}
> SELECT *
> FROM (
> SELECT *, row_number() over(partition by key order by value) rn
> FROM testData t
> ) t1
> WHERE rn=1
> {code}
> column *key* will be distinct
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