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https://issues.apache.org/jira/browse/PIG-1989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13025018#comment-13025018
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Thejas M Nair commented on PIG-1989:
------------------------------------
The problem is seen in this case -
{code}
input:
(a,b,3)
a = load 'inp.txt' as (t:tuple(i0, i1, i2));
b = foreach a generate (tuple(tuple(int)))$0;
dump b;
We get: ((,b,3)), instead of ()
{code}
> complex type casting should return null on casting failure
> -----------------------------------------------------------
>
> Key: PIG-1989
> URL: https://issues.apache.org/jira/browse/PIG-1989
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.9.0
> Reporter: Thejas M Nair
> Assignee: Daniel Dai
> Fix For: 0.9.0
>
>
> When casting fails for complex objects, pig is currently returning un-casted
> object if the cast fails.
> It should return null instead. That is consistent with the behavior when
> casting to other basic types.
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