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Pig, mail # user - Newbie question on bags/tuples


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Mark 2011-03-12, 05:26
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RE: Newbie question on bags/tuples
Xuefu Zhang 2011-03-12, 06:00
You probably needs a UDF that takes a bag and produces a tuple that combines all tuples in the bag. I'm not sure if there is such a UDF in Piggybank. The flatten clause doesn't do what you want.

Thanks,
Xuefu

-----Original Message-----
From: Mark [mailto:[EMAIL PROTECTED]]
Sent: Friday, March 11, 2011 9:26 PM
To: [EMAIL PROTECTED]
Subject: Newbie question on bags/tuples

Sorry if butcher the terminology I'm still new to Pig but Ill try my best.
Given a bag of tuples how can I create a flattened version of all the tuples?
For example say I have {(1), (2), (3)} how can I produce? (1,2,3).

Thanks
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Jonathan Coveney 2011-03-12, 06:24