[jira] [Created] (HIVE-19090) Running concatenate on ORC tables either increase or decrease the number of files depends on the order of file being picked

Mon, 02 Apr 2018 12:14:47 -0700 

Naresh P R created HIVE-19090:
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             Summary: Running concatenate on ORC tables either increase or 
decrease the number of files depends on the order of file being picked
                 Key: HIVE-19090
                 URL: https://issues.apache.org/jira/browse/HIVE-19090
             Project: Hive
          Issue Type: Bug
          Components: ORC
            Reporter: Naresh P R


I ran concatenate 2 times without changing any config

For the 1st run, 14 files merged to 8 files

For the 2nd run, 8 files expanded to 10 files

>From logs i could see Input files are same, whereas output splits from 
>CombineHiveInputFormat are varying depending upon the file being picked first.

 



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