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https://issues.apache.org/jira/browse/HIVE-11937?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14936185#comment-14936185
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Pengcheng Xiong commented on HIVE-11937:
----------------------------------------

The failed tests are unrelated. Pushed to master. Thanks [~ashutoshc] for the 
review!

> Improve StatsOptimizer to deal with query with additional constant columns
> --------------------------------------------------------------------------
>
>                 Key: HIVE-11937
>                 URL: https://issues.apache.org/jira/browse/HIVE-11937
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>         Attachments: HIVE-11937.01.patch, HIVE-11937.02.patch
>
>
> Right now StatsOptimizer can deal with query such as "select count(1) from 
> src" by directly looking into the metastore. However, it can not deal with 
> "select '1' as one, count(1) from src" which has an additional constant 
> column. We may improve it.



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