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https://issues.apache.org/jira/browse/DATAFU-45?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13985730#comment-13985730
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Sam Steingold edited comment on DATAFU-45 at 4/30/14 4:55 PM:
--------------------------------------------------------------
tried that:
{code}
my_stage2 = foreach my_stage1 {
keywords = cross keywords, TOBAG(weight);
generate id, keywords;
};
describe my_stage2;
-- my_stage2: {id: chararray,keywords: {(keywords::token:
chararray,null::weight: double)}}
dump my_stage2;
-- ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1066: Unable to open iterator
for alias my_stage2
{code}
in fact, I get the exact same error behavior for {{weight}}, {{TOBAG(weight)}},
and {{{weight}}}.
was (Author: sds):
tried that:
{code}
my_stage2 = foreach my_stage1 {
keywords = cross keywords, TOBAG(weight);
generate id, keywords;
};
describe my_stage2;
-- my_stage2: {id: chararray,keywords: {(keywords::token:
chararray,null::weight: double)}}
dump my_stage2;
-- ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1066: Unable to open iterator
for alias my_stage2
{code}
> RFE: CartesianProduct
> ---------------------
>
> Key: DATAFU-45
> URL: https://issues.apache.org/jira/browse/DATAFU-45
> Project: DataFu
> Issue Type: New Feature
> Reporter: Sam Steingold
>
> Given two bags, produce their [Cartesian
> product|http://en.wikipedia.org/wiki/Cartesian_product]:
> {code}
> B1: bag{T1}
> B2: bag{T2}
> CartesianProduct(B1,B2): bag{(T1,T2)}
> {code}
> Use case:
> {code}
> toks = TOKENIZE((charray)$0,',');
> kwds = CartesianProduct(toks, {1.0/(double)SIZE(toks)});
> {code}
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