[jira] [Work logged] (HIVE-25990) Optimise multiple copies in case of CTAS in external tables for Object stores

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-25990?focusedWorklogId=734581&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-734581 ]

ASF GitHub Bot logged work on HIVE-25990:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 01/Mar/22 13:44
            Start Date: 01/Mar/22 13:44
    Worklog Time Spent: 10m 
      Work Description: ayushtkn commented on pull request #3058:
URL: https://github.com/apache/hive/pull/3058#issuecomment-1055456931


   the test failure isn't related.


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 734581)
    Remaining Estimate: 0h
            Time Spent: 10m

> Optimise multiple copies in case of CTAS in external tables for Object stores
> -----------------------------------------------------------------------------
>
>                 Key: HIVE-25990
>                 URL: https://issues.apache.org/jira/browse/HIVE-25990
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Ayush Saxena
>            Assignee: Ayush Saxena
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Presently for CTAS with external tables, there are two renames, operations, one from tmp to _ext and then from _ext to actual target.
> In case of object stores, the renames lead to actual copy. Avoid renaming by avoiding rename from tmp to _ext, but by creating a list of files to be copied in that directly, which can be consumed in the move task, to copy directly from tmp to actual target.



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