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Posted to issues@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2017/12/01 01:19:00 UTC

[jira] [Commented] (HIVE-18190) Consider looking at ORC file schema rather than using _metadata_acid file

    [ https://issues.apache.org/jira/browse/HIVE-18190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16273786#comment-16273786 ] 

Eugene Koifman commented on HIVE-18190:
---------------------------------------

probably best to do HIVE-18045 first to simplify the reader before doing this

> Consider looking at ORC file schema rather than using _metadata_acid file
> -------------------------------------------------------------------------
>
>                 Key: HIVE-18190
>                 URL: https://issues.apache.org/jira/browse/HIVE-18190
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Transactions
>    Affects Versions: 3.0.0
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>
> See if it's possible to just look at the schema of the file in base_ or delta_ to see if it has Acid metadata columns.  If not, it's an 'original' file and needs ROW_IDs generated.
> see more discussion at https://reviews.apache.org/r/64131/



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