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From "Russell Jurney (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIG-3088) Add a builtin udf which removes prefixes
Date Tue, 11 Dec 2012 01:33:21 GMT

    [ https://issues.apache.org/jira/browse/PIG-3088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13528580#comment-13528580
] 

Russell Jurney commented on PIG-3088:
-------------------------------------

You are a gentleman and a scholar.
                
> Add a builtin udf which removes prefixes
> ----------------------------------------
>
>                 Key: PIG-3088
>                 URL: https://issues.apache.org/jira/browse/PIG-3088
>             Project: Pig
>          Issue Type: New Feature
>            Reporter: Jonathan Coveney
>            Assignee: Jonathan Coveney
>             Fix For: 0.12
>
>         Attachments: PIG-3088-0.patch
>
>
> This is something that I always hear people complaining about. Note that this depends
on the FlattenOutput annotation.
> This UDF supports the following.
> {code}
> a = load 'a' as (x1, y1, z1);
> b = load 'a' as (x2, y2, z2);
> c = join a by x1, b by x2;
> describe c;
> --c: {a::x1: bytearray,a::y1: bytearray,a::z1: bytearray,b::x2: bytearray,b::y2: bytearray,b::z2:
bytearray}
> d = foreach c generate RemovePrefix(*);
> describe d;
> --d: {x1: bytearray,y1: bytearray,z1: bytearray,x2: bytearray,y2: bytearray,z2: bytearray}
> {code}

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