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From "Thejas M Nair (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (PIG-1297) algebraic interface of udf does not get used if the foreach with udf projects column within group
Date Thu, 30 Sep 2010 23:28:32 GMT

     [ https://issues.apache.org/jira/browse/PIG-1297?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thejas M Nair resolved PIG-1297.
--------------------------------

    Resolution: Duplicate

> algebraic interface of udf does not get used if the foreach with udf projects column
within group
> -------------------------------------------------------------------------------------------------
>
>                 Key: PIG-1297
>                 URL: https://issues.apache.org/jira/browse/PIG-1297
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.7.0
>            Reporter: Thejas M Nair
>            Assignee: Thejas M Nair
>             Fix For: 0.9.0
>
>
> grunt> l = load 'file' as (a,b,c);
> grunt> g = group l by (a,b);
> grunt> f = foreach g generate SUM(l.c), group.a;
> grunt> explain f;
> ...
> ...
> #--------------------------------------------------
> # Map Reduce Plan
> #--------------------------------------------------
> MapReduce node 1-752
> Map Plan
> Local Rearrange[tuple]{tuple}(false) - 1-742
> |   |
> |   Project[bytearray][0] - 1-743
> |   |
> |   Project[bytearray][1] - 1-744
> |
> |---Load(file:///Users/tejas/pig/trunk/file:org.apache.pig.builtin.PigStorage) - 1-739--------
> Reduce Plan
> Store(fakefile:org.apache.pig.builtin.PigStorage) - 1-751
> |
> |---New For Each(false,false)[bag] - 1-750
>     |   |
>     |   POUserFunc(org.apache.pig.builtin.SUM)[double] - 1-747
>     |   |
>     |   |---Project[bag][2] - 1-746
>     |       |
>     |       |---Project[bag][1] - 1-745
>     |   |
>     |   Project[bytearray][0] - 1-749
>     |   |
>     |   |---Project[tuple][0] - 1-748
>     |
>     |---Package[tuple]{tuple} - 1-741--------
> Global sort: false
> ----------------

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