hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8017) Use HiveKey instead of BytesWritable as key type of the pair RDD [Spark Branch]
Date Mon, 08 Sep 2014 16:08:28 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14125702#comment-14125702
] 

Xuefu Zhang commented on HIVE-8017:
-----------------------------------

Thanks, [~lirui]. Patch looks good to me. Could take a look at the above test failures? Thanks.

> Use HiveKey instead of BytesWritable as key type of the pair RDD [Spark Branch]
> -------------------------------------------------------------------------------
>
>                 Key: HIVE-8017
>                 URL: https://issues.apache.org/jira/browse/HIVE-8017
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Rui Li
>            Assignee: Rui Li
>         Attachments: HIVE-8017-spark.patch
>
>
> HiveKey should be used as the key type because it holds the hash code for partitioning.
While BytesWritable serves partitioning well for simple cases, we have to use {{HiveKey.hashCode}}
for more complicated ones, e.g. join, bucketed table, etc.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message