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https://issues.apache.org/jira/browse/PIG-1482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xuefu Zhang updated PIG-1482:
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Status: Patch Available (was: Open)
Updated the patch based on the review comments.
For comments above, the one next to the last, the map should only contain one
entry. Before the result is obtained, exception is thrown anytime two
different loadfunspec's are found. It was done that way before.
> Pig gets confused when more than one loader is involved
> -------------------------------------------------------
>
> Key: PIG-1482
> URL: https://issues.apache.org/jira/browse/PIG-1482
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.7.0
> Reporter: Ankur
> Assignee: Xuefu Zhang
> Fix For: 0.8.0
>
> Attachments: jira-1482-final-1.patch, jira-1482-final.patch,
> jira-1482-final.patch, jira-1482-final.patch
>
>
> In case of two relations being loaded using different loader, joined, grouped
> and projected, pig gets confused in trying to find appropriate loader for the
> requested cast. Consider the following script :-
> A = LOAD 'data1' USING PigStorage() AS (s, m, l);
> B = FOREACH A GENERATE s#'k1' as v1, m#'k2' as v2, l#'k3' as v3;
> C = FOREACH B GENERATE v1, (v2 == 'v2' ? 1L : 0L) as v2:long, (v3 == 'v3' ? 1
> :0) as v3:int;
> D = LOAD 'data2' USING TextLoader() AS (a);
> E = JOIN C BY v1, D BY a USING 'replicated';
> F = GROUP E BY (v1, a);
> G = FOREACH F GENERATE (chararray)group.v1, group.a;
>
> dump G;
> This throws the error, stack trace of which is in the next comment
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