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https://issues.apache.org/jira/browse/HIVE-18804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich updated HIVE-18804:
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Attachment: HIVE-18804.01.patch
> StatsUtils.getColStatisticsFromExprMap may only provide info for a column once
> ------------------------------------------------------------------------------
>
> Key: HIVE-18804
> URL: https://issues.apache.org/jira/browse/HIVE-18804
> Project: Hive
> Issue Type: Sub-task
> Components: Statistics
> Reporter: Zoltan Haindrich
> Priority: Major
> Attachments: HIVE-18804.01.patch
>
>
> currently {{StatsUtils.getColStatisticsFromExprMap}} may duplicate the
> datasize by passing the info about the same column more than once
> https://github.com/apache/hive/blob/e8e5ab24616aa834f4966efe3a5f437f6bee4d1d/ql/src/java/org/apache/hadoop/hive/ql/stats/StatsUtils.java#L1529
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