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https://issues.apache.org/jira/browse/HIVE-14803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15570613#comment-15570613
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Rajesh Balamohan commented on HIVE-14803:
-----------------------------------------

Thanks [~sseth], [~pxiong]. I will fix the patch and post it.

> S3: Stats gathering for insert queries can be expensive for partitioned 
> dataset
> -------------------------------------------------------------------------------
>
>                 Key: HIVE-14803
>                 URL: https://issues.apache.org/jira/browse/HIVE-14803
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>    Affects Versions: 2.1.0
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Minor
>         Attachments: HIVE-14803.1.patch
>
>
> StatsTask's aggregateStats populates stats details for all partitions by 
> checking the file sizes which turns out to be expensive when larger number of 
> partitions are inserted. 



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