[jira] [Commented] (PIG-2035) Macro expansion doesn't handle multiple expansions of same macro inside another macro

["Richard Ding (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-2035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13029045#comment-13029045 ] 

Richard Ding commented on PIG-2035:
-----------------------------------

test-patch result:

{code}
     [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 did not generate any 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 generated 585 release audit warnings (more than the trunk's current 584 warnings).
{code}



> Macro expansion doesn't handle multiple expansions of same macro inside another macro
> -------------------------------------------------------------------------------------
>
>                 Key: PIG-2035
>                 URL: https://issues.apache.org/jira/browse/PIG-2035
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: 0.9.0
>            Reporter: Richard Ding
>            Assignee: Richard Ding
>             Fix For: 0.9.0
>
>         Attachments: PIG-2035_1.patch
>
>
> Here is the use case:
> {code}
> define test ( in, out, x ) returns c { 
>     a = load '$in' as (name, age, gpa);
>     b = group a by gpa;
>     $c = foreach b generate group, COUNT(a.$x);
>     store $c into '$out';
> };
> define test2( in, out ) returns x { 
>     $x = test( '$in', '$out', 'name' );
>     $x = test( '$in', '$out.1', 'age' );
>     $x = test( '$in', '$out.2', 'gpa' );
> };
> x = test2('studenttab10k', 'myoutput');
> {code}

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