[jira] Created: (PIG-1710) Document limitation on how many aliases cogroup can handle and why users should not cogroup more than 127 aliases

[Viraj Bhat (JIRA)]

Document limitation on how many aliases cogroup can handle and why users should 
not cogroup more than 127 aliases
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                 Key: PIG-1710
                 URL: https://issues.apache.org/jira/browse/PIG-1710
             Project: Pig
          Issue Type: Bug
          Components: documentation
            Reporter: Viraj Bhat


We have a usecase in Pig where we cogroup on more than 5000 aliases.

{code}
cogroup_1 = foreach(cogroup A, B, C ... more than 1000 aliases ) generate 
flatten (udf(....));
{code}

But we found out that there is a limitation on how many aliases a cogroup can 
handle which is 127 so we had to workaround in more than 10-15 batches.


Is there some documentation on this?

Viraj


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