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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13147) COLUMN_STATS_ACCURATE is not accurate
Date Thu, 25 Feb 2016 03:15:18 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15166649#comment-15166649
] 

Pengcheng Xiong commented on HIVE-13147:
----------------------------------------

I agree. :)

> COLUMN_STATS_ACCURATE is not accurate
> -------------------------------------
>
>                 Key: HIVE-13147
>                 URL: https://issues.apache.org/jira/browse/HIVE-13147
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 1.2.0
>            Reporter: Romain Rigaux
>
> Often we see on a described table:
> {code}
> Table Parameters:	NULL	NULL
> 18		COLUMN_STATS_ACCURATE	true                
> 19		numFiles            	1                   
> 20		numRows             	0                   
> 21		rawDataSize         	0                   
> 22		totalSize           	46069               
> 23		transient_lastDdlTime	1448930216          
> {code}
> Notice
> {code}
> 20		numRows             	0                   
> 21		rawDataSize         	0       
> {code}
> are wrong.
> After doing an analyze we get:
> {code}
> Table Parameters:	NULL	NULL
> 18		COLUMN_STATS_ACCURATE	true                
> 19		numFiles            	1                   
> 20		numRows             	823                 
> 21		rawDataSize         	45246               
> 22		totalSize           	46069               
> 23		transient_lastDdlTime	1456338426 
> {code}



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