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From "Jonathan Coveney (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-3078) Make a UDF that, given a string, returns just the columns prefixed by that string
Date Fri, 07 Dec 2012 21:31:21 GMT

     [ https://issues.apache.org/jira/browse/PIG-3078?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Coveney updated PIG-3078:
----------------------------------

    Attachment: PIG-3078-0.patch
    
> Make a UDF that, given a string, returns just the columns prefixed by that string
> ---------------------------------------------------------------------------------
>
>                 Key: PIG-3078
>                 URL: https://issues.apache.org/jira/browse/PIG-3078
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Jonathan Coveney
>             Fix For: 0.12
>
>         Attachments: PIG-3078-0.patch
>
>
> This comes up fairly often, usually as the result of a join. Given that the resulting
schema has the column name prepended, a udf in the following form could give just the columns
from the desired relation:
> Pluck('relation_name', *)

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