[jira] [Resolved] (PIG-2428) In pig9, can't have limit(order by) without getting a null error

["Daniel Dai (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-2428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Dai resolved PIG-2428.
-----------------------------

       Resolution: Fixed
    Fix Version/s: 0.11
                   0.10
                   0.9.2
     Hadoop Flags: Reviewed

Unit tests pass.

test-patch:
     [exec] -1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     +1 tests included.  The patch appears to include 3 new or modified tests.
     [exec] 
     [exec]     -1 javadoc.  The javadoc tool appears to have generated 1 warning messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the total number of release audit warnings.

I checked javadoc warning and it does not seems to be related. 

Patch committed to 0.9 branch (0.10/trunk already has this fix).
                
> In pig9, can't have limit(order by) without getting a null error
> ----------------------------------------------------------------
>
>                 Key: PIG-2428
>                 URL: https://issues.apache.org/jira/browse/PIG-2428
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.9.0, 0.9.2
>            Reporter: Jonathan Coveney
>            Assignee: Jonathan Coveney
>             Fix For: 0.9.2, 0.10, 0.11
>
>         Attachments: PIG-2428-0.patch, PIG-2428-1.patch, PIG-2428-2.patch
>
>
> {code}
> a = load 'thing' as (x:int);
> b = group a by x;
> c = foreach b generate group as x, COUNT(a) as count;
> d = limit (order c by count DESC) 2000;
> describe d;
> {code}
> This gives the following error:
> 2011-12-13 13:56:32,144 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1005: No plan for d to describe
> In trunk, it ran without issue. Not sure what the difference is, but it'd be nice to patch 0.9.2 since a lot of people (including amazon!) are using pig 9 now.

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