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From "Thejas M Nair (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-1606) flatten documentation does not discuss flatten of empty bag
Date Fri, 10 Sep 2010 23:18:33 GMT
flatten documentation does not discuss flatten of empty bag
-----------------------------------------------------------

                 Key: PIG-1606
                 URL: https://issues.apache.org/jira/browse/PIG-1606
             Project: Pig
          Issue Type: Bug
          Components: documentation
            Reporter: Thejas M Nair


>From the existing flatten documentation, it is not clear that flatten of an empty bag
results in that row being discarded .

For example the following query gives no output -
{code}
grunt> cat /tmp/empty.bag
{}      1
grunt> l = load '/tmp/empty.bag' as (b : bag{}, i : int);
grunt> f = foreach l generate flatten(b), i;
grunt> dump f;
grunt>
{code}


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