Pig gives incorrect error message dealing with scalar projection
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Key: PIG-2000
URL: https://issues.apache.org/jira/browse/PIG-2000
Project: Pig
Issue Type: Bug
Affects Versions: 0.8.0, 0.9.0
Reporter: Xuefu Zhang
Assignee: Xuefu Zhang
Fix For: site
For the following query:
A = load 'x' as (u:tuple(x,y),v);
B = load 'y';
C = foreach B generate $0, A.u.x;
error msg in 0.8:
ERROR 1000: Error during parsing. Invalid alias: x in {u: (x: bytearray,y:
bytearray),v: bytearray}
error msg in 0.9:
ERROR 1200: Pig script failed to parse: <line 4, column 27> Invalid scalar
projection: A
Both messages are not clear enough. For scalar support, we only support one
level, which gives a syntax of R.f format.
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