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https://issues.apache.org/jira/browse/PIG-3083?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arnab Guin updated PIG-3083:
----------------------------
Attachment: pig_jira_aguin_3083.patch
> Introduce new syntax that let's you project just the columns that come from a
> given :: prefix
> ---------------------------------------------------------------------------------------------
>
> Key: PIG-3083
> URL: https://issues.apache.org/jira/browse/PIG-3083
> Project: Pig
> Issue Type: Bug
> Reporter: Jonathan Coveney
> Fix For: 0.12
>
> Attachments: pig_jira_aguin_3083.patch
>
>
> This is basically a more refined approach than PIG-3078, but it is also more
> work. That JIRA is more of a stopgap until we do something like this.
> The idea would be to support something like the following:
> a = load 'a' as (x,y,z);
> b = load 'b' as (x,y,z);
> c = join a by x, b by x;
> d = foreach c generate a::*;
> Obviously this is useful for any case where you have relations with columns
> with various prefixes.
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