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https://issues.apache.org/jira/browse/HIVE-14803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15566376#comment-15566376
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Siddharth Seth commented on HIVE-14803:
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There was a bunch of failing tests in the precommit run... were they unrelated?
> 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
> Fix For: 2.2.0
>
> 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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