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https://issues.apache.org/jira/browse/PIG-1776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12987306#action_12987306
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Richard Ding commented on PIG-1776:
-----------------------------------
+1
> changing statement corresponding to alias after explain , then doing dump
> gives incorrect result
> ------------------------------------------------------------------------------------------------
>
> Key: PIG-1776
> URL: https://issues.apache.org/jira/browse/PIG-1776
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.8.0
> Reporter: Thejas M Nair
> Assignee: Thejas M Nair
> Fix For: 0.8.0
>
> Attachments: PIG-1776.1.patch
>
>
> {code}
> grunt> a = load '/tmp/t2.txt' as (str:chararray, num1:int, alph : chararray);
> grunt> dump a;
> (ABC,1,a)
> (ABC,1,b)
> (ABC,1,a)
> (ABC,2,b)
> (DEF,1,d)
> (XYZ,1,x)
> grunt> c = foreach b generate group.str, group.$1, COUNT(a.alph) ;
> grunt> dump c; -- gives correct results
> (ABC,1,3)
> (ABC,2,1)
> (DEF,1,1)
> (XYZ,1,1)
> /* but dumping c after following steps gives incorrect results */
> grunt> c = foreach b generate group.$0 , (CHARARRAY)group.$1;
>
> grunt> explain c;
> ...
> ...
> grunt> c = foreach b generate group.str, group.$1, COUNT(a.alph) ;
> grunt> dump c;
> (ABC,1,0)
> (ABC,2,0)
> (DEF,1,0)
> (XYZ,1,0)
> {code}
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