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

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.9.0
• Fix Version/s: 0.9.0
• Component/s: impl
• Hadoop Flags: Reviewed
• Assignee: Richard Ding
• Reporter: Richard Ding
• Created: 04/May/11 17:33
• Updated: 04/Aug/11 00:34
• Resolved: 11/May/11 00:34

Description

Here is the use case:

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');