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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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