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https://issues.apache.org/jira/browse/HIVE-19500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich updated HIVE-19500:
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Resolution: Fixed
Fix Version/s: 4.0.0
Status: Resolved (was: Patch Available)
checked the failures; they are not caused by this patc
h.
pushed to master. Thank you Ashutosh for reviewing the changes!
[~vgarg]: I think this should be also present on branch-3 / branch-3.0 branches
- should I upload patches for those as well?
> 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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