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Re: UDF that takes bag as input and returns another bag - Pig - [mail # user]
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...Ah, I suppose I was just proving it oculd be done. To make a new one, you'd do: public class MyUdf extends EvalFunc { private static final BagFactory mBagFactory = BagFact...
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Author: Jonathan Coveney,
2013-03-18, 15:01
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Re: UDF that takes bag as input and returns another bag - Pig - [mail # user]
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...Absolutely. public class MyUdf extends EvalFunc { public DataBag exec(Tuple input) throws IOException { return (DataBag)input.get(0); } } A dummy exa...
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Author: Jonathan Coveney,
2013-03-18, 10:19
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[PIG-2630] Issue with setting "b = a;" - Pig - [issue]
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...The following gives an error:a = load 'thing' as (x:int);b = a; c = join a by x, b by x;Error:2012-04-03 14:02:47,434 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1200: Pig script f...
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http://issues.apache.org/jira/browse/PIG-2630
Author: Jonathan Coveney,
2013-03-15, 18:47
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Re: Loader partitioning on field - Pig - [mail # user]
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...If it is being passed in anyway, you could make it a $PARAM that is set by the launch script, and then it would be a constant in the script. 2013/3/14 Jeff Yuan ...
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Author: Jonathan Coveney,
2013-03-15, 10:17
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Re: How to control a number of reducers in Apache Pig - Pig - [mail # user]
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...The script you posted wouldn't have any reducers, so it wouldn't matter. It's a map only job. 2013/3/15 ...
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Author: Jonathan Coveney,
2013-03-15, 10:15
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Re: Loader partitioning on field - Pig - [mail # user]
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...No, it is not. But if it knew that, how would that filter be meaningful? What do you have in mind? 2013/3/14 Jeff Yuan ...
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Author: Jonathan Coveney,
2013-03-14, 22:15
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Re: EvalFunc finish() closing connections prematurely - Pig - [mail # user]
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...Can you perhaps share more of your implementation? I can imagine a couple of things which would cause errors like this. Are you making sure that each instance of EvalFunc is dealing with a d...
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Author: Jonathan Coveney,
2013-03-14, 21:24
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Re: Introducing Parquet: efficient columnar storage for Hadoop. - Pig - [mail # user]
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...Super excited that this is finally public. The benefits are huge, and having an (eventually) battle tested columnar storage format developed for a diverse set of needs will be awesome. ...
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Author: Jonathan Coveney,
2013-03-12, 22:07
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[PIG-2360] Grammar should be as consistent as possible within and without foreach blocks - Pig - [issue]
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...This works:a = load 'thing';b = foreach (group a all) { sorted = order a by $0; top = limit sorted 100; generate flatten(top);}This does not:a = load 'thing'...
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http://issues.apache.org/jira/browse/PIG-2360
Author: Jonathan Coveney,
2013-03-07, 02:08
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Re: Pig script compiling too slow with pig-0.10 and pig-0.11 - Pig - [mail # user]
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...Can you try this on trunk and let me know if you have a similar error? Also can you turn on DEBUG and say if it is taking forever during or after parsing? 2013/3/6 Haitao Yao &n...
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Author: Jonathan Coveney,
2013-03-06, 13:21
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