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https://issues.apache.org/jira/browse/PIG-2321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vivek Padmanabhan resolved PIG-2321.
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Resolution: Duplicate
This issue is already reported in PIG-2205.Marking this as duplicate.
> Pig 0.9 generates an improper MR plan
> -------------------------------------
>
> Key: PIG-2321
> URL: https://issues.apache.org/jira/browse/PIG-2321
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.8.1, 0.9.0
> Reporter: Vivek Padmanabhan
> Priority: Minor
>
> The below script compiles and the MR plan has 3 jobs. But the script will
> always fail.
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MultiQueryOptimizer
> - MR plan size before optimization: 3
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MultiQueryOptimizer
> - MR plan size after optimization: 2
> {code}
> a0 = load 'i1' as
> (frcode,type:chararray,src_pty:chararray,srcpvid:chararray,src_spaceid:chararray,pageparams);
> b2 = group a0 by (type, frcode) parallel 2;
> b3 = foreach b2 generate COUNT_STAR(b2.$0) as num_clicks,flatten(group) ;
> store b3 into 'junkout3';
> {code}
> The script fails due to improper reference at COUNT_STAR(b2.$0) . But this
> validation should be done at the compile time.
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