[jira] [Created] (PIG-4880) Overlapping of parameter substitution names inside&outside a macro fails with NPE

["Koji Noguchi (JIRA)" <ji...@apache.org>]

Koji Noguchi created PIG-4880:
---------------------------------

             Summary: Overlapping of parameter substitution names inside&outside a macro fails with NPE
                 Key: PIG-4880
                 URL: https://issues.apache.org/jira/browse/PIG-4880
             Project: Pig
          Issue Type: Bug
          Components: parser
    Affects Versions: 0.12.0
            Reporter: Koji Noguchi
            Assignee: Koji Noguchi


With 
{code:title=macro.pig}
DEFINE mygroupby(REL, key) RETURNS G {
   %declare number 333;
   $G = GROUP $REL by $key parallel $number;
};
{code}
and
{code:title=test.pig}
-- equivalent of -param number=111
%declare number 111;

IMPORT 'macro.pig';
data = LOAD '1234.txt' USING PigStorage() AS (i: int);
result = mygroupby(data, i);
STORE result INTO 'test.out' USING PigStorage();
{code}

Fails with 
{{error msg: <file myscript.pig, line 4> Macro inline failed for macro 'mygroupby'. Reason: null}}

Similarly, when macro param and command-line param overlap, it fails with 
{{Macro inline failed for macro 'mygroupby'. Reason: Macro contains argument or return value number which conflicts with a Pig parameter of the same name.}}



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