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https://issues.apache.org/jira/browse/HIVE-18140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16526794#comment-16526794
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Hive QA commented on HIVE-18140:
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| (x) *{color:red}-1 overall{color}* |
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| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 8s{color}
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/data/hiveptest/logs/PreCommit-HIVE-Build-12224/patches/PreCommit-HIVE-Build-12224.patch
does not apply to master. Rebase required? Wrong Branch? See
http://cwiki.apache.org/confluence/display/Hive/HowToContribute for help.
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http://104.198.109.242/logs//PreCommit-HIVE-Build-12224/yetus.txt |
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This message was automatically generated.
> Partitioned tables statistics can go wrong in basic stats mixed case
> --------------------------------------------------------------------
>
> Key: HIVE-18140
> URL: https://issues.apache.org/jira/browse/HIVE-18140
> Project: Hive
> Issue Type: Sub-task
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Attachments: HIVE-18140.01-branch-3.patch, HIVE-18140.01.patch,
> HIVE-18140.01wip01.patch, HIVE-18140.01wip03.patch, HIVE-18140.01wip04.patch,
> HIVE-18140.02.patch, HIVE-18140.02wip01.patch, HIVE-18140.03.patch,
> HIVE-18140.04.patch, HIVE-18140.04.patch, HIVE-18140.05.patch,
> HIVE-19140.02wip02.patch, HIVE-19727.02wip03.patch
>
>
> suppose the following scenario:
> * part1 has basic stats {{RC=10,DS=1K}}
> * all other partition has no basic stats (and a bunch of rows)
> then
> [this|https://github.com/apache/hive/blob/d9924ab3e285536f7e2cc15ecbea36a78c59c66d/ql/src/java/org/apache/hadoop/hive/ql/stats/StatsUtils.java#L378]
> condition would be false; which in turn produces estimations for the whole
> partitioned table: {{RC=10,DS=1K}}
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