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From "Phabricator (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-1003) optimize metadata only queries
Date Thu, 03 Nov 2011 00:21:34 GMT

     [ https://issues.apache.org/jira/browse/HIVE-1003?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phabricator updated HIVE-1003:
------------------------------

    Attachment: D105.2.patch

njain updated the revision "HIVE-1003 [jira] optimize metadata only queries".
Reviewers: JIRA

REVISION DETAIL
  https://reviews.facebook.net/D105

AFFECTED FILES
  ql/src/test/results/clientpositive/join0.q.out
  ql/src/test/queries/clientpositive/groupby2.q
  ql/src/test/queries/clientpositive/join0.q
  ql/src/java/org/apache/hadoop/hive/ql/exec/ExplainTask.java
  ql/src/java/org/apache/hadoop/hive/ql/plan/ExplainWork.java
  ql/src/java/org/apache/hadoop/hive/ql/parse/Hive.g
  ql/src/java/org/apache/hadoop/hive/ql/parse/ExplainSemanticAnalyzer.java

                
> 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: 0.9.0
>
>         Attachments: D105.1.patch, D105.2.patch, HIVE-1003.1.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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