okumin created HIVE-24203: ----------------------------- Summary: Implement stats annotation rule for the LateralViewJoinOperator Key: HIVE-24203 URL: https://issues.apache.org/jira/browse/HIVE-24203 Project: Hive Issue Type: Improvement Components: Physical Optimizer Affects Versions: 2.3.7, 3.1.2, 4.0.0 Reporter: okumin Assignee: okumin
StatsRulesProcFactory doesn't have any rules to handle a JOIN by LATERAL VIEW. This can cause an underestimation in case that UDTF in LATERAL VIEW generates multiple rows. HIVE-20262 has already added the rule for UDTF. This issue would add the rule for LateralViewJoinOperator. -- This message was sent by Atlassian Jira (v8.3.4#803005)