[jira] [Assigned] (SPARK-27714) Support Join Reorder based on Genetic Algorithm when the # of joined tables > 12
[ https://issues.apache.org/jira/browse/SPARK-27714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Xiao Li reassigned SPARK-27714: --- Assignee: Xianyin Xin > Support Join Reorder based on Genetic Algorithm when the # of joined tables > > 12 > > > Key: SPARK-27714 > URL: https://issues.apache.org/jira/browse/SPARK-27714 > Project: Spark > Issue Type: Improvement > Components: SQL >Affects Versions: 3.0.0 >Reporter: Xianyin Xin >Assignee: Xianyin Xin >Priority: Major > > Now the join reorder logic is based on dynamic planning which can find the > most optimized plan theoretically, but the searching cost grows rapidly with > the # of joined tables grows. It would be better to introduce Genetic > algorithm (GA) to overcome this problem. -- This message was sent by Atlassian JIRA (v7.6.14#76016) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Assigned] (SPARK-27714) Support Join Reorder based on Genetic Algorithm when the # of joined tables > 12
[ https://issues.apache.org/jira/browse/SPARK-27714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-27714: Assignee: (was: Apache Spark) > Support Join Reorder based on Genetic Algorithm when the # of joined tables > > 12 > > > Key: SPARK-27714 > URL: https://issues.apache.org/jira/browse/SPARK-27714 > Project: Spark > Issue Type: Improvement > Components: SQL >Affects Versions: 3.0.0 >Reporter: Xianyin Xin >Priority: Major > > Now the join reorder logic is based on dynamic planning which can find the > most optimized plan theoretically, but the searching cost grows rapidly with > the # of joined tables grows. It would be better to introduce Genetic > algorithm (GA) to overcome this problem. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Assigned] (SPARK-27714) Support Join Reorder based on Genetic Algorithm when the # of joined tables > 12
[ https://issues.apache.org/jira/browse/SPARK-27714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-27714: Assignee: Apache Spark > Support Join Reorder based on Genetic Algorithm when the # of joined tables > > 12 > > > Key: SPARK-27714 > URL: https://issues.apache.org/jira/browse/SPARK-27714 > Project: Spark > Issue Type: Improvement > Components: SQL >Affects Versions: 3.0.0 >Reporter: Xianyin Xin >Assignee: Apache Spark >Priority: Major > > Now the join reorder logic is based on dynamic planning which can find the > most optimized plan theoretically, but the searching cost grows rapidly with > the # of joined tables grows. It would be better to introduce Genetic > algorithm (GA) to overcome this problem. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
