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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3940) Track columns accessed in each table in a query
Date Thu, 31 Jan 2013 00:31:14 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13567149#comment-13567149
] 

Hudson commented on HIVE-3940:
------------------------------

Integrated in hive-trunk-hadoop1 #60 (See [https://builds.apache.org/job/hive-trunk-hadoop1/60/])
    HIVE-3940. Track columns accessed in each table in a query. (Samuel Yuan via kevinwilfong)
(Revision 1440695)

     Result = ABORTED
kevinwilfong : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1440695
Files : 
* /hive/trunk/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
* /hive/trunk/conf/hive-default.xml.template
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/QueryPlan.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/BaseSemanticAnalyzer.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/ColumnAccessAnalyzer.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/ColumnAccessInfo.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
* /hive/trunk/ql/src/test/org/apache/hadoop/hive/ql/hooks/CheckColumnAccessHook.java
* /hive/trunk/ql/src/test/queries/clientpositive/column_access_stats.q
* /hive/trunk/ql/src/test/results/clientpositive/column_access_stats.q.out

                
> Track columns accessed in each table in a query
> -----------------------------------------------
>
>                 Key: HIVE-3940
>                 URL: https://issues.apache.org/jira/browse/HIVE-3940
>             Project: Hive
>          Issue Type: Task
>          Components: Query Processor
>            Reporter: Samuel Yuan
>            Assignee: Samuel Yuan
>            Priority: Minor
>             Fix For: 0.11.0
>
>         Attachments: HIVE-3940.1.patch.txt, HIVE-3940.2.patch.txt, HIVE-3940.3.patch.txt
>
>
> Similar to partition access logs, we need to have columns access logs, so later we can
build tools/reports to inform users if there are wasted columns in a table to be trimmed.

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