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https://issues.apache.org/jira/browse/PIG-3367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13758821#comment-13758821
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Aniket Mokashi commented on PIG-3367:
-------------------------------------
I have attached a patch, but it does not have fast-fail mechanism yet. I will
open a jira to have a generic framework for fail-fast from a UDF and modify
assert to use that later.
> Add assert keyword (operator) in pig
> ------------------------------------
>
> Key: PIG-3367
> URL: https://issues.apache.org/jira/browse/PIG-3367
> Project: Pig
> Issue Type: New Feature
> Components: parser
> Reporter: Aniket Mokashi
> Assignee: Aniket Mokashi
> Fix For: 0.12
>
> Attachments: PIG-3367.patch
>
>
> Assert operator can be used for data validation. With assert you can write
> script as following-
> {code}
> a = load 'something' as (a0:int, a1:int);
> assert a by a0 > 0, 'a cant be negative for reasons';
> {code}
> This script will fail if assert is violated.
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