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https://issues.apache.org/jira/browse/HIVE-19500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16487632#comment-16487632
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Zoltan Haindrich commented on HIVE-19500:
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but sure...revert it if you want...the queue is right now 39 long... which is
~2 days
and I've bisected sample6 cause...the other seems to be some timing issue
> Prevent multiple selectivity estimations for the same variable in conjuctions
> -----------------------------------------------------------------------------
>
> Key: HIVE-19500
> URL: https://issues.apache.org/jira/browse/HIVE-19500
> Project: Hive
> Issue Type: Sub-task
> Affects Versions: 3.0.0, 3.1.0
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: HIVE-19500.01.patch, HIVE-19500.02.patch,
> HIVE-19500.03.patch
>
>
> see HIVE-19097 for problem description
> for filters like: {{(d_year in (2001,2002) and d_year = 2001)}} the current
> estimation is around {{(1/NDV)**2}} (iff column stats are available) ....
> actually the source of the problem was a small typo in HIVE-17465
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