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From "Chao Sun (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-15489) Alternatively use table scan stats for HoS
Date Fri, 17 Feb 2017 20:08:41 GMT

     [ https://issues.apache.org/jira/browse/HIVE-15489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chao Sun updated HIVE-15489:
----------------------------
       Resolution: Fixed
    Fix Version/s: 2.2.0
           Status: Resolved  (was: Patch Available)

Committed to the master branch. Thanks [~xuefuz] for the review.

> Alternatively use table scan stats for HoS
> ------------------------------------------
>
>                 Key: HIVE-15489
>                 URL: https://issues.apache.org/jira/browse/HIVE-15489
>             Project: Hive
>          Issue Type: Improvement
>          Components: Spark, Statistics
>    Affects Versions: 2.2.0
>            Reporter: Chao Sun
>            Assignee: Chao Sun
>             Fix For: 2.2.0
>
>         Attachments: HIVE-15489.1.patch, HIVE-15489.2.patch, HIVE-15489.3.patch, HIVE-15489.6.patch,
HIVE-15489.7.patch, HIVE-15489.wip.patch
>
>
> For MapJoin in HoS, we should provide an option to only use stats in the TS rather than
the populated stats in each of the join branch. This could be pretty conservative but more
reliable.



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