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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7513) Add ROW__ID VirtualColumn
Date Tue, 11 Nov 2014 06:55:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14206046#comment-14206046
] 

Lefty Leverenz commented on HIVE-7513:
--------------------------------------

Yay.
-- LazySimpleTechWriter

> Add ROW__ID VirtualColumn
> -------------------------
>
>                 Key: HIVE-7513
>                 URL: https://issues.apache.org/jira/browse/HIVE-7513
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Query Processor
>    Affects Versions: 0.13.1
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>             Fix For: 0.14.0
>
>         Attachments: HIVE-7513.10.patch, HIVE-7513.11.patch, HIVE-7513.12.patch, HIVE-7513.13.patch,
HIVE-7513.14.patch, HIVE-7513.3.patch, HIVE-7513.4.patch, HIVE-7513.5.patch, HIVE-7513.8.patch,
HIVE-7513.9.patch, HIVE-7513.codeOnly.txt
>
>
> In order to support Update/Delete we need to read rowId from AcidInputFormat and pass
that along through the operator pipeline (built from the WHERE clause of the SQL Statement)
so that it can be written to the delta file by the update/delete (sink) operators.
> The parser will add this column to the projection list to make sure it's passed along.



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