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From "Prasanth J (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8478) Vectorized Reduce-Side Group By doesn't handle Decimal type correctly
Date Fri, 17 Oct 2014 19:16:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14175413#comment-14175413
] 

Prasanth J commented on HIVE-8478:
----------------------------------

Left some minor comments on RB.

> Vectorized Reduce-Side Group By doesn't handle Decimal type correctly
> ---------------------------------------------------------------------
>
>                 Key: HIVE-8478
>                 URL: https://issues.apache.org/jira/browse/HIVE-8478
>             Project: Hive
>          Issue Type: Bug
>          Components: Vectorization
>    Affects Versions: 0.14.0
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>             Fix For: 0.14.0
>
>         Attachments: HIVE-8478.01.patch, HIVE-8478.02.patch, HIVE-8478.03.patch
>
>
> Note that DecimalColumnVector is different than LongColumnVector because it keeps (an
instance) reference to a Decimal128 class whereas the latter stores a long primitive value.
So, trouble if you set the reference instead of updating the object.



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