[jira] [Commented] (PIG-2151) Add annotation to specify output schema in Java UDFs

["Daniel Dai (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-2151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149457#comment-13149457 ] 

Daniel Dai commented on PIG-2151:
---------------------------------

+1. Don't forget to add release notes. 
                
> Add annotation to specify output schema in Java UDFs
> ----------------------------------------------------
>
>                 Key: PIG-2151
>                 URL: https://issues.apache.org/jira/browse/PIG-2151
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Dmitriy V. Ryaboy
>            Assignee: Dmitriy V. Ryaboy
>         Attachments: PIG-2151.patch
>
>
> In Python udfs, the output schema of an eval func is specified via an @OutputSchema annotation.
> We should do the same for Java udfs instead of making people write the cumbersome outputSchema functions.
> If an annotation exists, it should override an existing outputSchema implementation (since all evalFuncs will inherit the method from EvalFunc.java and there is thus no way to *not* have an implementation).

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