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https://issues.apache.org/jira/browse/HIVE-24203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich resolved HIVE-24203.
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Fix Version/s: 4.0.0
Resolution: Fixed
> 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
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> 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.
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