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[PIG-2317] Ruby/Jruby UDFs - Pig - [issue]
...It should be possible to write UDFs in Ruby. These UDFs will be registered in the same way as python and javascript UDFs....
http://issues.apache.org/jira/browse/PIG-2317    Author: Jacob Perkins, 2012-04-03, 18:21
Re: Once more... - Pig - [mail # user]
...Michael,  Why not just:  D = foreach (join C by datapoint2, B by datapoint1) generate       B::datapoint1, B::datapoint2;  Does that get you what you need? &nbs...
   Author: Jacob Perkins, 2012-03-19, 20:03
PigServer vs PigRunner - Pig - [mail # user]
...Hello,  I find myself needing to run a pig script iteratively from within a java program. Since I'm writing the data to a db (Cassandra) I can't (as far as I can tell) use PigServer's s...
   Author: Jacob Perkins, 2012-03-01, 16:15
Re: exclude rows from group - Pig - [mail # user]
...Marco,  What you want is a combination of COGROUP and FILTER, see:  $: cat foo.tsv  1 rich 1 happy 2 rich 3 happy 4 rich    A = LOAD 'foo.tsv' AS (user_id:int, user_...
   Author: Jacob Perkins, 2012-02-28, 15:59
Re: Left joins with != condition - Pig - [mail # user]
...If I understand correctly, this is nothing more than an anti-join which can be done with pig using a cogroup.  So your SQL below:   becomes something like:  a = load 'yee' as ...
   Author: Jacob Perkins, 2012-01-03, 13:34
Re: JOIN not printing properly - Pig - [mail # user]
...Have you taken a look at Pygmalion (http://github.com/jeromatron/pygmalion) which makes it MUCH easier to work with tabular data from Cassandra like you're trying to do?  For example: &...
   Author: Jacob Perkins, 2011-11-04, 14:57
Re: Store Groups Separately - Pig - [mail # user]
...You'll have to run a FOREACH...GENERATE over the data first and generate a single key to look like the filename you want. Then you can use MultiStorage() from the piggybank. See:  org.a...
   Author: Jacob Perkins, 2011-10-10, 16:57
Re: RDBMS and Pig - Pig - [mail # user]
...You might also take a look at  http://pig.apache.org/docs/r0.8.1/api/index.html?org/apache/pig/piggybank/storage/DBStorage.html  which is going to require that you 'register' the p...
   Author: Jacob Perkins, 2011-07-26, 13:11
Re: why the foreach nested form can't work? - Pig - [mail # user]
...On Tue, 2011-07-19 at 16:05 +0200, 勇胡 wrote: Looking at the output of describe shows that A is bag (eg. the '{' and '}' characters), yes? So 'A.score' is simply the bag of all the scores in ...
   Author: Jacob Perkins, 2011-07-19, 14:26
Re: JOIN or COGROUP? - need to join 1 column from first file which should lie in between 2 columns from second file. - Pig - [mail # user]
...Assuming col1 is numeric, as you've indicated, couldn't you simply generate a new column in file 1 by rounding to the nearest 1000? Then file 1 would look like:  *File 1: col1  col...
   Author: Jacob Perkins, 2011-07-15, 12:23
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