[ https://issues.apache.org/jira/browse/SPARK-41171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan reassigned SPARK-41171: ----------------------------------- Assignee: jiaan.geng > 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: 3.4.0 > Reporter: jiaan.geng > Assignee: jiaan.geng > Priority: Major > > 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} -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org