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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11937) Improve StatsOptimizer to deal with query with additional constant columns
Date Fri, 25 Sep 2015 17:53:04 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11937?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14908398#comment-14908398
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Pengcheng Xiong commented on HIVE-11937:
----------------------------------------

update golden files for metadata_only_queries on the other test drivers. the other test failures
are unrelated.

> 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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