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Losing ordering after using ORDER BY - Pig - [mail # user]
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...Hi, I've noticed that I seem to be losing the ordering of my relation after passing the result of an ORDER BY to an EVAL function. For example: D = FOREACH C GENERATE COUNT...
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Author: James Newhaven,
2012-05-29, 19:25
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Summing the contents of a bag - Pig - [mail # user]
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...Given a relation that contains this: ({(11),(9)}) ({(8),(7)}) Is it possible for me to SUM the contents of each bag so I get: (20) (15) Thanks, James...
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Author: James Newhaven,
2012-05-28, 22:40
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Re: Passing a single Bag to an Eval function - Pig - [mail # user]
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...Thanks Jonathan. Great explanation. On Mon, May 28, 2012 at 6:53 PM, Jonathan Coveney wrote: ...
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Author: James Newhaven,
2012-05-28, 22:16
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Passing a single Bag to an Eval function - Pig - [mail # user]
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...I am trying to use an EVAL pig function (it's called BagSplit from datafu) which accepts a Bag as a parameter. The problem I have is that my current relation is a single Bag, so I'm no...
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Author: James Newhaven,
2012-05-28, 12:12
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Jackson problem in custom Pig Eval function - Pig - [mail # user]
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...I am trying to use the Jackson JSON mapper in a custom Eval Pig function like this: mapper.writeValueAsString(cityChartData); However, when I use my custom function in a pig scri...
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Author: James Newhaven,
2012-05-18, 16:17
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Re: Removing unwanted items in tuple - Pig - [mail # user]
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...Thanks. But what if my bag is grouped like this: group: (id), bagname: { (product, unwanted, count), (product, unwanted, count) } I want to retain the group tuple but remov...
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Author: James Newhaven,
2012-05-09, 20:22
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Removing unwanted items in tuple - Pig - [mail # user]
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...I have a bag of tuples like this: { (product, unwanted, count), (product, unwanted, count) } Is it possible in Pig to generate a new bag with a revised tuple structure with one o...
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Author: James Newhaven,
2012-05-09, 17:43
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Re: Ordering and limiting Tuples inside a Bag - Pig - [mail # user]
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...Ok, figured out the nested foreach. Thanks for your help. Regards, James On Wed, May 9, 2012 at 5:33 PM, James Newhaven wrote: ...
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Author: James Newhaven,
2012-05-09, 17:39
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Re: Ordering and limiting Tuples inside a Bag - Pig - [mail # user]
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...Thanks Steve, Yes I did discover nested foreach, but I can't get the syntax right. Can anyone help get me started on how it's meant to look? Regards, James On Wed, May 9, 2...
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Author: James Newhaven,
2012-05-09, 16:33
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Ordering and limiting Tuples inside a Bag - Pig - [mail # user]
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...Hi, Another newbie Pig question. If I have a relation with a structure like this: (city, { (productId, count), (product, count) }). This relation tracks counts of products ...
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Author: James Newhaven,
2012-05-09, 11:56
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