Cheng Su created SPARK-36794: -------------------------------- Summary: Ignore duplicated join keys when building relation for LEFT/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
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