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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2018/08/03 07:02:00 UTC

[jira] [Commented] (HIVE-20302) LLAP: non-vectorized execution in IO ignores virtual columns, including ROW__ID

    [ https://issues.apache.org/jira/browse/HIVE-20302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16567854#comment-16567854 ] 

Jesus Camacho Rodriguez commented on HIVE-20302:
------------------------------------------------

[~sershe], [~prasanth_j], I discovered this issue while running tests with materialized view rebuild. When we go through the wrapper, we end up ignoring {{ROW__ID}} which may be needed by the plan, thus resulting in NULL values when the column is read during execution.

I was talking to [~gopalv] about it and came up with this patch that fixes the issue, though not completely sure whether it is the best fix since I am not totally familiar with that codepath. Please, let me know what you think.

Cc [~ashutoshc]

> LLAP: non-vectorized execution in IO ignores virtual columns, including ROW__ID
> -------------------------------------------------------------------------------
>
>                 Key: HIVE-20302
>                 URL: https://issues.apache.org/jira/browse/HIVE-20302
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>         Attachments: HIVE-20302.patch
>
>




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