Generate more meaningful error message when one input file does not exist
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Key: PIG-1001
URL: https://issues.apache.org/jira/browse/PIG-1001
Project: Pig
Issue Type: Bug
Affects Versions: 0.4.0
Reporter: Daniel Dai
Fix For: 0.6.0
In the following query, if 2.txt does not exist,
a = load '1.txt';
b = order a by $0;
c = load '2.txt';
d = order c by $0;
e = join b by $0, d by $0;
dump e;
Pig throws error message "ERROR 2100: file:/tmp/temp155054664/tmp1144108421
does not exist.", Pig should deal with it with the error message "Input file
2.txt not exist" instead of those confusing messages.
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