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Date: Thu, 8 Dec 2011 07:37:45 +0000 (UTC)
From: "Hudson (Commented) (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
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Subject: [jira] [Commented] (HIVE-1003) optimize metadata only queries
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    [ https://issues.apache.org/jira/browse/HIVE-1003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13165068#comment-13165068 ] 

Hudson commented on HIVE-1003:
------------------------------

Integrated in Hive-trunk-h0.23.0 #7 (See [https://builds.apache.org/job/Hive-trunk-h0.23.0/7/])
    HIVE-1003 [jira] optimize metadata only queries
(Namit Jain via Yongqiang He)

Summary:
testing

Queries like:

select max(ds) from T

where ds is a partitioning column should be optimized.

Test Plan: EMPTY

Reviewers: JIRA, heyongqiang

Reviewed By: heyongqiang

CC: njain, heyongqiang

Differential Revision: 105

heyongqiang : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1211767
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/DDLTask.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/metadata/MetaDataFormatUtils.java
* /hive/trunk/ql/src/test/queries/clientpositive/partition_schema1.q
* /hive/trunk/ql/src/test/results/clientpositive/alter_table_serde.q.out
* /hive/trunk/ql/src/test/results/clientpositive/exim_04_evolved_parts.q.out
* /hive/trunk/ql/src/test/results/clientpositive/partition_schema1.q.out

                
> optimize metadata only queries
> ------------------------------
>
>                 Key: HIVE-1003
>                 URL: https://issues.apache.org/jira/browse/HIVE-1003
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Marcin Kurczych
>             Fix For: 0.8.0, 0.9.0
>
>         Attachments: D105.1.patch, D105.2.patch, HIVE-1003.1.patch, HIVE-1003.D105.3.patch, hive.1003.2.patch, hive.1003.3.patch, hive.1003.4.patch
>
>
> Queries like:
> select max(ds) from T 
> where ds is a partitioning column should be optimized.

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