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From "Alex Levenson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIG-3367) Add assert keyword (operator) in pig
Date Thu, 27 Jun 2013 18:52:20 GMT

    [ https://issues.apache.org/jira/browse/PIG-3367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13694950#comment-13694950
] 

Alex Levenson commented on PIG-3367:
------------------------------------

Making it part of foreach looks more readable.
I think there should still be an option for custom error messages.

                
> 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
>
> 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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