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From "Thejas M Nair (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PIG-1980) support accumulative mode when nested non-blocking relations are present as input
Date Fri, 08 Apr 2011 16:12:05 GMT
support accumulative mode when nested non-blocking relations are present as input
---------------------------------------------------------------------------------

                 Key: PIG-1980
                 URL: https://issues.apache.org/jira/browse/PIG-1980
             Project: Pig
          Issue Type: Improvement
    Affects Versions: 0.9.0
            Reporter: Thejas M Nair
             Fix For: 0.10


In queries such as following, where the udf in nested foreach is getting input from a non-blocking
relation (eg, filter, limit), it should be possible to use the accumulative mode.

{code}
a = load 't.txt' as (f1:int,f2:int);
b = group a by f1;
c = foreach b { fa = filter a by f2 > 1; generate COUNT(fa)  ; }
explain c;
{code}

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