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From "Aihua Xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12889) Support COUNT(DISTINCT) for partitioning query.
Date Wed, 20 Jan 2016 17:05:39 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15108927#comment-15108927
] 

Aihua Xu commented on HIVE-12889:
---------------------------------

Attached the patch 2: we need to make a copy of LazyString as well since it's used during
the data retrieval. In addition to that, I added a hash of the objects so, only compare the
object difference when the two hashes are the same.

> Support COUNT(DISTINCT) for partitioning query.
> -----------------------------------------------
>
>                 Key: HIVE-12889
>                 URL: https://issues.apache.org/jira/browse/HIVE-12889
>             Project: Hive
>          Issue Type: Sub-task
>          Components: PTF-Windowing
>    Affects Versions: 2.1.0
>            Reporter: Aihua Xu
>            Assignee: Aihua Xu
>         Attachments: HIVE-12889.2.patch, HIVE-12889.patch
>
>
> We need to support avg(distinct), count(distinct), sum(distinct) for the parent jira
HIVE-9534. Separate the work for count(distinct) in this subtask.



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