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[expand - 2 more] - Re: UDF for generating top xx % of results? - Pig - [mail # user]
...ahh, I see, i seem to have misread the question, if it's top xx% entries, then certainly sorting and then limiting.  @Thejas  I had thought that Limit is distributed and does not g...
   Author: hc busy, 2010-06-30, 16:02
Re: Pig at LinkedIn - Pig - [mail # user]
...Russell, fire that neurologist who didn't care about what you had to think about your own problems!! ;-)  But honestly though, I use booleans in my pig scripts too. The trouble is that ...
   Author: hc busy, 2010-06-24, 20:26
[expand - 2 more] - Re: Scaling Pig Projects - The Hairy Pig - Pig - [mail # user]
...More great ideas, Scott!  The one thing about idempotency of IMPORT is that you may not necessarily want it. The scripts that I wrote will indeed take alias from a previously imported p...
   Author: hc busy, 2010-06-24, 17:24
Re: simple way to REPLACE on various columns - Pig - [mail # user]
...yeah, that'd be really cool. The other way that we can say this, (to make map reduce interface available in pig), is to allow FOREACH to be nested:   TRIMED_TABLE = FOREACH TABLE { &nbs...
   Author: hc busy, 2010-06-18, 18:20
[expand - 1 more] - Re: How to find all possible permutations from a bag - Pig - [mail # user]
...heh, I want n*(n-1)/2 too... Maybe someone out there has an UDF that does this after a group.   On Wed, Jun 16, 2010 at 8:30 AM, Christian  wrote:  ...
   Author: hc busy, 2010-06-16, 18:47
[expand - 2 more] - Re: Help with a tricky query - Pig - [mail # user]
...Yeah, that IS hard in pig. I'm not even sure how to do a self-join in Pig. Like you can't really say  T = join Table by id1, Table by id2, Table by id3;  I think PigLatin will comp...
   Author: hc busy, 2010-06-11, 17:59
[expand - 1 more] - Re: Behavior of JOIN - Pig - [mail # user]
...Oh, I see what my confusion is... It's the "null"s on which join behaves differently in pig than sql. Right? that's where things are different.   On Thu, Jun 10, 2010 at 12:48 PM, Alan ...
   Author: hc busy, 2010-06-11, 17:44
[expand - 1 more] - Re: does EvalFunc generate the entire bag always ? - Pig - [mail # dev]
...well, see that's the thing, the 'sort A by $0' is already nlg(n)  ahh, I see, my own example suffers from this problem.  I guess I'm wondering how 'limit' works in conjunction with...
   Author: hc busy, 2010-06-01, 20:44
Re: cogroup and flattening optionally empty bags - Pig - [mail # user]
...yeah, something like this should work:  o = foreach cg generate FLATTEN(A.a_column) as a_column, ((IsEmpty(B))?toBag(toTuple(null)):(B.b_column)) as B2: o2 = foreach o generate a_column...
   Author: hc busy, 2010-06-01, 20:38
[expand - 1 more] - Re: UDF question - Pig - [mail # user]
...oh, that's a good point, can't just return arbitrary types... Even if I derive from base class. Interesting.  Well, the combination of toTuple and toBag will accomplish many tasks. One ...
   Author: hc busy, 2010-06-01, 20:29
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