Pig gives unclear error message in an error case
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Key: PIG-1995
URL: https://issues.apache.org/jira/browse/PIG-1995
Project: Pig
Issue Type: Bug
Affects Versions: 0.9.0
Reporter: Xuefu Zhang
Assignee: Xuefu Zhang
Fix For: 0.9.0
For the following query:
A = load 'x' as (u:int, v, w);
B = load 'y' as (w:int);
C = cogroup A by u, B by w using 'merge';
Pis is happy with no parsing error. However, if 'merge' were replaced with
'collected', resulting a negative test case, Pig gives incorrect error message:
grunt> C = cogroup A by u, B by w using 'collected';
2011-04-14 10:39:10,155 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
1200: can't look backwards more than one token in this stream
It seems this is a regression introduced lately.
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