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Posted to issues@hive.apache.org by "Vaibhav Gumashta (JIRA)" <ji...@apache.org> on 2019/07/12 17:25:00 UTC

[jira] [Assigned] (HIVE-17695) collapse union all produced directories into delta directory name suffix for MM

     [ https://issues.apache.org/jira/browse/HIVE-17695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vaibhav Gumashta reassigned HIVE-17695:
---------------------------------------

    Assignee: Vaibhav Gumashta

> collapse union all produced directories into delta directory name suffix for MM
> -------------------------------------------------------------------------------
>
>                 Key: HIVE-17695
>                 URL: https://issues.apache.org/jira/browse/HIVE-17695
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Transactions
>            Reporter: Eugene Koifman
>            Assignee: Vaibhav Gumashta
>            Priority: Minor
>
> this has special handling for writes resulting from Union All query
> In full Acid case at least, these subdirs get collapsed in favor of statementId based dir names (delta_x_y_stmtId).  It would be cleaner/simpler to make MM follow the same logic.  (full acid does it Hive.moveFiles() I think)



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