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https://issues.apache.org/jira/browse/HIVE-19090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prasanth Jayachandran reassigned HIVE-19090:
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Assignee: Prasanth Jayachandran
> 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
> Assignee: Prasanth Jayachandran
> Priority: Major
>
> 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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