[ https://issues.apache.org/jira/browse/SPARK-34257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-34257: ------------------------------------ Assignee: Apache Spark > Improve performance for last_value over unbounded window frame > -------------------------------------------------------------- > > Key: SPARK-34257 > URL: https://issues.apache.org/jira/browse/SPARK-34257 > Project: Spark > Issue Type: Sub-task > Components: SQL > Affects Versions: 3.2.0 > Reporter: jiaan.geng > Assignee: Apache Spark > Priority: Major > > The current implement of `last_value` will execute `updateExpressions` > multiple times. > In fact, `last_value` only execute `updateExpressions` once on the last row. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org