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https://issues.apache.org/jira/browse/PIG-1423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12872664#action_12872664
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Hadoop QA commented on PIG-1423:
--------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12445029/PIG-1423.patch
against trunk revision 948526.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
-1 javadoc. The javadoc tool appears to have generated 1 warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h1.grid.sp2.yahoo.net/9/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h1.grid.sp2.yahoo.net/9/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-h1.grid.sp2.yahoo.net/9/console
This message is automatically generated.
> Suggest to add clear command in grunt to clear the relation variable
> --------------------------------------------------------------------
>
> Key: PIG-1423
> URL: https://issues.apache.org/jira/browse/PIG-1423
> Project: Pig
> Issue Type: New Feature
> Components: grunt
> Affects Versions: 0.8.0
> Reporter: Jeff Zhang
> Assignee: Jeff Zhang
> Fix For: 0.8.0
>
> Attachments: PIG-1423.patch
>
>
> The relation name in pig script can been considered as variable of
> programming language. One risk of the current grunt is that user may use the
> previous defined relation name by typo after a long period of work on grunt.
> And it is difficult for users to track this problem. E.g. the following red
> "students" is not the user intend to use, but here grunt won't throw any
> error meesage.
> students = load 'a.txt';
> ....
> student = load 'b.txt';
> result = foreach {color:red}students{color} generate $0;
> The clear command is to clear the variable defined before, then if users use
> the relation name defined before, grunt will throw error message. And this
> command also will be useful to let user reuse the relation names especially
> when he's doing lots of experiments for one specific task.
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