Not able to provide positional reference to macro invocations
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Key: PIG-2184
URL: https://issues.apache.org/jira/browse/PIG-2184
Project: Pig
Issue Type: Bug
Affects Versions: 0.9.0
Reporter: Vivek Padmanabhan
It looks like the macro functionality doesnt support for positional references.
The below is an example script;
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DEFINE my_macro (X,key) returns Y
{
tmp1 = foreach $X generate TOKENIZE((chararray)$key) as tokens;
tmp2 = foreach tmp1 generate flatten(tokens);
tmp3 = order tmp2 by $0;
$Y = distinct tmp3;
}
A = load 'sometext' using TextLoader() as (row1) ;
E = my_macro(A,A.$0);
dump E;
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This script execution fails at parsing staging itself;
org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1000: Error during
parsing. <file try1.pig, line 16,
column 16> mismatched input '.' expecting RIGHT_PAREN
If i replace A.$0 with the field name ie row1 the script runs fine.
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