Rajesh Balamohan created HIVE-14803:

             Summary: 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
            Reporter: Rajesh Balamohan
            Assignee: Rajesh Balamohan
            Priority: Minor

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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