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https://issues.apache.org/jira/browse/PIG-2021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13030682#comment-13030682
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Vivek Padmanabhan commented on PIG-2021:
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Attaching a script avoiding all the dependencies;
{code}
A = load 'temp' as ( s, m, l );
B = foreach A generate *, LOWER((chararray) s#'url') as parsedurl;
C = foreach B {
urlpath = (chararray) parsedurl#'path';
lc_urlpath = org.apache.pig.piggybank.evaluation.string.Reverse((chararray)
urlpath);
generate *;
};
{code}
> Parser error while referring a map nested foreach
> -------------------------------------------------
>
> Key: PIG-2021
> URL: https://issues.apache.org/jira/browse/PIG-2021
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.9.0
> Reporter: Vivek Padmanabhan
> Assignee: Xuefu Zhang
> Fix For: 0.9.0
>
>
> The below script is throwing parser errors
> {code}
> register string.jar;
> A = load 'test1' using MapLoader() as ( s, m, l );
> B = foreach A generate *, string.URLPARSE((chararray) s#'url') as parsedurl;
> C = foreach B {
> urlpath = (chararray) parsedurl#'path';
> lc_urlpath = string.TOLOWERCASE((chararray) urlpath);
> generate *;
> };
> {code}
> Error message;
> | Failed to generate logical plan.
> |Nested exception: org.apache.pig.impl.logicalLayer.FrontendException: ERROR
> 2225: Projection with nothing to reference!
> PIG-2002 reports a similar issue, but when i tried with the patch of PIG-2002
> i was getting the below exception;
> ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1200: <file repro.pig, line
> 11, column 33> mismatched input '(' expecting SEMI_COLON
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