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https://issues.apache.org/jira/browse/PIG-3483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13785940#comment-13785940
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Cheolsoo Park commented on PIG-3483:
------------------------------------

+1. Thank you for taking care of this!

Just found a typo in your example. The relation A doesn't have a0 field. Do you 
mind fixing it when committing the patch?
{code}
Suppose we have relation A.

A = LOAD 'data' AS (a1:int,a2:int,a3:int);
...
Now, you can assert that a0 column in your data is >0, fail if otherwise
ASSERT A by a0 > 0 'a0 should be greater than 0';
{code}


> Document ASSERT keyword
> -----------------------
>
>                 Key: PIG-3483
>                 URL: https://issues.apache.org/jira/browse/PIG-3483
>             Project: Pig
>          Issue Type: Task
>          Components: documentation
>    Affects Versions: 0.12.0
>            Reporter: Cheolsoo Park
>            Assignee: Aniket Mokashi
>             Fix For: 0.12.0
>
>         Attachments: PIG-3483.patch
>
>
> PIG-3367 added a new keyword ASSERT, so we need to document it.



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