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Posted to issues@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2015/11/20 11:11:11 UTC

[jira] [Commented] (HIVE-12479) Vectorization: vectorized MultiKeyJoins with 2 integers with a filter in the middle

    [ https://issues.apache.org/jira/browse/HIVE-12479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15015538#comment-15015538 ] 

Gopal V commented on HIVE-12479:
--------------------------------

[~mmccline]: The attached data-set has 2 ORC input files and the query to run. 

TPC-DS is entirely single integer joins - so can't really port the example problem onto TPC-DS.

> Vectorization: vectorized MultiKeyJoins with 2 integers with a filter in the middle
> -----------------------------------------------------------------------------------
>
>                 Key: HIVE-12479
>                 URL: https://issues.apache.org/jira/browse/HIVE-12479
>             Project: Hive
>          Issue Type: Bug
>          Components: Vectorization
>    Affects Versions: 1.3.0, 2.0.0
>            Reporter: Gopal V
>            Assignee: Matt McCline
>         Attachments: HIVE-12479.tar.gz
>
>
> The row-counts expected with and without vectorization differ.
> The attached small-scale repro case produces 5 rows with vectorized multi-key joins and 53 rows without the vectorized join.



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