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From "Chaoyu Tang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12053) Stats performance regression caused by HIVE-11786
Date Wed, 14 Oct 2015 22:12:06 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14957922#comment-14957922
] 

Chaoyu Tang commented on HIVE-12053:
------------------------------------

I was not able to reproduce TestSparkCliDriver test failures in my local machine and they
seem not related to this patch. The failures from testTableSchemaPropagation and testSSLVersion
are also not related.
[~sseth] AFAIK, there has not been other implementations on top of HIVE-11786 by now. As for
HIVE-11788 which depends on the schema normalization in HIVE-11786, it looks like that we
have to update the stats tables as well in db/table/partition rename :-)

> Stats performance regression caused by HIVE-11786
> -------------------------------------------------
>
>                 Key: HIVE-12053
>                 URL: https://issues.apache.org/jira/browse/HIVE-12053
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>            Reporter: Chaoyu Tang
>            Assignee: Chaoyu Tang
>         Attachments: HIVE-12053.patch
>
>
> HIVE-11786 tried to normalize table TAB_COL_STATS/PART_COL_STATS but caused performance
regression.



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