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Posted to issues@hive.apache.org by "Prasanth Jayachandran (JIRA)" <ji...@apache.org> on 2015/11/18 02:19:10 UTC

[jira] [Commented] (HIVE-12451) Orc fast file merging/concatenation should be disabled for ACID tables

    [ https://issues.apache.org/jira/browse/HIVE-12451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15009989#comment-15009989 ] 

Prasanth Jayachandran commented on HIVE-12451:
----------------------------------------------

[~ekoifman] fyi..

> Orc fast file merging/concatenation should be disabled for ACID tables
> ----------------------------------------------------------------------
>
>                 Key: HIVE-12451
>                 URL: https://issues.apache.org/jira/browse/HIVE-12451
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 1.3.0, 2.0.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>
> For ACID tables merging of small files should happen only through compaction. We should disable "alter table .. concatenate" for ACID tables. We should also disable ConditionalMergeFileTask if destination is an ACID table.



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