[jira] [Commented] (HIVE-8061) improve the speed of col stats update speed

["Pengcheng Xiong (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-8061?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14130729#comment-14130729 ] 

Pengcheng Xiong commented on HIVE-8061:
---------------------------------------

https://reviews.apache.org/r/25557/

> improve the speed of col stats update speed
> -------------------------------------------
>
>                 Key: HIVE-8061
>                 URL: https://issues.apache.org/jira/browse/HIVE-8061
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>            Priority: Minor
>         Attachments: HIVE-8061.1.patch
>
>
> We worked hard towards faster update stats for columns of a partition of a table previously https://issues.apache.org/jira/browse/HIVE-7736
> and https://issues.apache.org/jira/browse/HIVE-7876
> Although there is some improvement, it is only correct in the first run. There will be duplicate column stats later. Thanks to Eugene Koifman 's comments.
> We fixed this in https://issues.apache.org/jira/browse/HIVE-7944 by reversing the patch.
> This JIRA ticket is my another try to improve the speed.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)