Gopal Vijayaraghavan created HIVE-23609: -------------------------------------------
Summary: SemiJoin: Relax big table size check for self-joins Key: HIVE-23609 URL: https://issues.apache.org/jira/browse/HIVE-23609 Project: Hive Issue Type: Improvement Reporter: Gopal Vijayaraghavan For self-joins, several other heuristics applied to Semijoins don't apply as the difference between rows on either side is likely to result in an actual reduction of rows scanned. This change results in slightly different Tez priorities for self-joins which are heavily filtered on one side over the other, which helps ensure the smaller table is completed before the bigger table consumes resources. -- This message was sent by Atlassian Jira (v8.3.4#803005)