[ https://issues.apache.org/jira/browse/SPARK-36794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-36794: ------------------------------------ Assignee: (was: Apache Spark) > Ignore duplicated join keys when building relation for SEMI/ANTI hash join > -------------------------------------------------------------------------- > > Key: SPARK-36794 > URL: https://issues.apache.org/jira/browse/SPARK-36794 > Project: Spark > Issue Type: Sub-task > Components: SQL > Affects Versions: 3.3.0 > Reporter: Cheng Su > Priority: Minor > > For LEFT SEMI and LEFT ANTI hash equi-join without extra join condition, we > only need to keep one row per unique join key(s) inside hash table > (`HashedRelation`) when building the hash table. This can help reduce the > size of hash table of join. -- 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