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https://issues.apache.org/jira/browse/HIVE-16169?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pengcheng Xiong reassigned HIVE-16169:
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> Improve StatsOptimizer to deal with groupby partition columns
> -------------------------------------------------------------
>
> Key: HIVE-16169
> URL: https://issues.apache.org/jira/browse/HIVE-16169
> Project: Hive
> Issue Type: Bug
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
>
> As reported by [~ashutoshc]
> 1) select sum(c), count(c),... from T group by b;
> 2) select max(c), min(c), ... from T group by b;
> If b happens to be a partition column, we can also answer these from
> metadata. Currently, StatsOptimizer don't handle these queries, but we can
> extend it to handle those as well.
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