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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Created: (HIVE-113) support of distribute by and sort by
Date Thu, 04 Dec 2008 01:19:44 GMT
support of distribute by and sort by
------------------------------------

                 Key: HIVE-113
                 URL: https://issues.apache.org/jira/browse/HIVE-113
             Project: Hadoop Hive
          Issue Type: New Feature
            Reporter: Zheng Shao


Currently Hive supports "cluster by" which puts the columns into map-reduce key.  Hadoop map-reduce
actually allows different partitioning (we call distribute) keys and sorting keys.
In Hive language, we will add "distribute by" for specifying the partition key, and "sort
by" for specifying the sort key. "cluster by" will be a short-cut for "distribute by" and
"sort by" with the same keys.


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