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https://issues.apache.org/jira/browse/PIG-2184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Olga Natkovich updated PIG-2184:
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Fix Version/s: (was: 0.10)
> Not able to provide positional reference to macro invocations
> -------------------------------------------------------------
>
> 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;
> ----------------------------------------------------------------------------
> 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;
> ----------------------------------------------------------------------------
> 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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