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From "Vineet Garg (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17538) Enhance estimation of stats to estimate even if only one column is missing stats
Date Wed, 20 Sep 2017 00:20:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16172535#comment-16172535
] 

Vineet Garg commented on HIVE-17538:
------------------------------------

Unfortunately the test report is not available anymore so will have to re-run tests to see
if they are related or unrelated.

> Enhance estimation of stats to estimate even if only one column is missing stats
> --------------------------------------------------------------------------------
>
>                 Key: HIVE-17538
>                 URL: https://issues.apache.org/jira/browse/HIVE-17538
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Vineet Garg
>            Assignee: Vineet Garg
>         Attachments: HIVE-17538.1.patch
>
>
> HIVE-16811 provided support for estimating statistics in absence of stats. But that estimation
is done if and only if statistics are missing for all columns. 



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