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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-17921) Aggregation with struct in LLAP produces wrong result
Date Thu, 07 Dec 2017 22:37:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-17921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16282631#comment-16282631
] 

Eugene Koifman commented on HIVE-17921:
---------------------------------------

FYI, [~teddy.choi], [~mmccline], [~gopalv]

> Aggregation with struct in LLAP produces wrong result
> -----------------------------------------------------
>
>                 Key: HIVE-17921
>                 URL: https://issues.apache.org/jira/browse/HIVE-17921
>             Project: Hive
>          Issue Type: Sub-task
>          Components: llap, Transactions
>    Affects Versions: 3.0.0
>            Reporter: Eugene Koifman
>            Priority: Blocker
>
> Consider 
> {noformat}
> select ROW__ID, count(*) from over10k_orc_bucketed group by ROW__ID having count(*) >
1;
> {noformat}
>  in acid_vectorization_original.q (available since HIVE-17458)
> when run using TestMiniLlapCliDriver produces "NULL, N" where N varies from run to run.
> The right answer is empty results set as can be seen by running
> {noformat}
> select ROW__ID, * from over10k_orc_bucketed where ROW__ID is null
> {noformat}
> in the same test.
> This is with 
> {noformat}
> set hive.vectorized.execution.enabled=true;
> set hive.vectorized.row.identifier.enabled=true;
> {noformat}
> It fails with TestMiniLlapCliDriver but not TestMiniTezCliDriver.  See acid_vectorization_original_tez.q
which has identical query.



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