[jira] [Assigned] (PIG-2378) macros don't accept references to items within tuples as arguments

["Johnny Zhang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-2378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Johnny Zhang reassigned PIG-2378:
---------------------------------

    Assignee: Johnny Zhang
    
> macros don't accept references to items within tuples as arguments
> ------------------------------------------------------------------
>
>                 Key: PIG-2378
>                 URL: https://issues.apache.org/jira/browse/PIG-2378
>             Project: Pig
>          Issue Type: Improvement
>    Affects Versions: 0.9.1
>            Reporter: Joseph Adler
>            Assignee: Johnny Zhang
>
> I'd like to be able to pass a reference to an item within a parameter to a Pig Macro.
> For example, suppose that I had a relation A with the schema A:{id:long, header:(time:long, type:chararray)}. I'd like to call a macro by typing:
>    B = MY_MACRO(A, header.time);
> but this does not currently work. Obviously, I could define a new relation as a workaround, for example I could use some pig code like 
>   AA = FOREACH a GENERATE *, header.time as time;
>   B = MY_MACRO(AA, time);
> But that's ugly and clunky

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