[jira] [Updated] (PIG-3782) PushDownForEachFlatten + ColumnMapKeyPrune with user defined schema failing due to incorrect UID assignment

["Koji Noguchi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-3782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Koji Noguchi updated PIG-3782:
------------------------------

    Attachment: pig-3782-v01.patch

I lack the understanding of why we need the copying of userDefinedSchema. 
This patch takes out the copying step so that UID of the userDefinedSchema would be saved.

[~daijy], can you check if I'm not messing up with this change?

> PushDownForEachFlatten + ColumnMapKeyPrune with user defined schema failing due to incorrect UID assignment
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: PIG-3782
>                 URL: https://issues.apache.org/jira/browse/PIG-3782
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Koji Noguchi
>            Assignee: Koji Noguchi
>         Attachments: pig-3782-v01.patch
>
>
> {noformat}
> a = load '1.txt' as (a0:int, a1, a2:bag{});
> b = load '2.txt' as (b0:int, b1);
> c = foreach a generate a0, flatten(a2) as (q1, q2);
> d = join c by a0, b by b0;
> e = foreach d generate a0, q1, q2;
> f = foreach e generate a0, (int)q1, (int)q2;
> store f into 'output';
> {noformat}
> This pig script fails with 
> 2014-02-27 11:49:45,657 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 2229: Couldn't find matching uid -1 for project (Name: Project Type: bytearray Uid: 13 Input: 0 Column: 1)



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