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https://issues.apache.org/jira/browse/SPARK-41171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-41171:
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Affects Version/s: 3.5.0
(was: 3.4.0)
> Push down filter through window when partitionSpec is empty
> -----------------------------------------------------------
>
> Key: SPARK-41171
> URL: https://issues.apache.org/jira/browse/SPARK-41171
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.5.0
> Reporter: jiaan.geng
> Assignee: jiaan.geng
> Priority: Major
> Fix For: 3.5.0
>
>
> Sometimes, filter compares the rank-like window functions with number.
> {code:java}
> SELECT *, ROW_NUMBER() OVER(ORDER BY a) AS rn FROM Tab1 WHERE rn <= 5
> {code}
> We can create a Limit(5) and push down it as the child of Window.
> {code:java}
> SELECT *, ROW_NUMBER() OVER(ORDER BY a) AS rn FROM (SELECT * FROM Tab1 ORDER
> BY a LIMIT 5) t
> {code}
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