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Posted to issues@hive.apache.org by "Ayush Saxena (Jira)" <ji...@apache.org> on 2023/09/22 09:30:00 UTC
[jira] [Resolved] (HIVE-21100) Allow flattening of table subdirectories resulted when using TEZ engine and UNION clause
[ https://issues.apache.org/jira/browse/HIVE-21100?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ayush Saxena resolved HIVE-21100.
---------------------------------
Fix Version/s: 4.0.0
Assignee: Ayush Saxena (was: George Pachitariu)
Resolution: Fixed
> Allow flattening of table subdirectories resulted when using TEZ engine and UNION clause
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-21100
> URL: https://issues.apache.org/jira/browse/HIVE-21100
> Project: Hive
> Issue Type: Improvement
> Reporter: George Pachitariu
> Assignee: Ayush Saxena
> Priority: Minor
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Attachments: HIVE-21100.1.patch, HIVE-21100.2.patch, HIVE-21100.3.patch, HIVE-21100.patch
>
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> Right now, when writing data into a table with Tez engine and the clause UNION ALL is the last step of the query, Hive on Tez will create a subdirectory for each branch of the UNION ALL.
> With this patch the subdirectories are removed, and the files are renamed and moved to the parent directory.
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