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Re: How to combine muliple group by - Pig - [mail # user]
...You can combine multiple relations using the UNION operator. If you're trying to combine logic, you can use a macro to do e2-e5 below that takes (e1, empid) or (e1, group). See the example h...
   Author: Bill Graham, 2012-05-15, 15:00
[PIG-2701] Pig-Guice integration - Pig - [issue]
...As Pig becomes more customizable (PPNLs, ReducerEstimators, Optimizers?), the current approach of loading custom classes via class params and reflection can become clunky. This is especially...
http://issues.apache.org/jira/browse/PIG-2701    Author: Bill Graham, 2012-05-14, 23:07
[PIG-2547] Easier UDFs: Convenient EvalFunc super-classes - Pig - [issue]
...We've got a few abstract extensions of EvalFunc that make life easier. If people are interested we can push said classes into Pig.There are 3 classes, each extending the next. Class naming i...
http://issues.apache.org/jira/browse/PIG-2547    Author: Bill Graham, 2012-05-12, 01:46
Re: The Source Code of "SAMPLE" - Pig - [mail # user]
...This link has some background: http://wiki.apache.org/pig/PigSampler  And these are the sampler classes: org.apache.pig.impl.builtin.SampleLoader org.apache.pig.impl.builtin.PoissonSamp...
   Author: Bill Graham, 2012-05-09, 16:10
Re: XML generation in Pig - Pig - [mail # user]
...You could write a UDF that take the tuple and does string munging to produce the XML for a given record. Each  element would be on a single line if that's ok.  This is approach is ...
   Author: Bill Graham, 2012-05-08, 22:32
Re: Counting tuple elements - Pig - [mail # user]
...Yes, see GROUP and COUNT. Something like this:  fruits = LOAD '/my/fruit' AS (name:chararray); grouped = GROUP fruits BY name; counts = FOREACH grouped GENERATE group, COUNT(fruits); DU...
   Author: Bill Graham, 2012-05-04, 16:15
[PIG-2663] Expose helpful ScriptState methods - Pig - [issue]
...The ScriptState.getAlias(MapReduceOper mro) and ScriptState.getFeature(MapReduceOper mro) methods are useful in implementations of PigProgressNotificationListener. I'd like to make them publ...
http://issues.apache.org/jira/browse/PIG-2663    Author: Bill Graham, 2012-05-01, 22:57
[PIG-2660] PPNL should get notified of plan before it gets executed - Pig - [issue]
...The PigProgressNotificationListner should get notified of the plan (MROperPlan) before it gets executed. This allows listeners to inspect the plan and have an idea what to expect in the exec...
http://issues.apache.org/jira/browse/PIG-2660    Author: Bill Graham, 2012-05-01, 04:24
[PIG-2678] Create abstract PigProgressNotificationListener - Pig - [issue]
...The Oozie folks have requested an abstract PPNL to extend for future proofing....
http://issues.apache.org/jira/browse/PIG-2678    Author: Bill Graham, 2012-05-01, 01:46
[expand - 1 more] - Re: Publishing snapshot builds - Pig - [mail # dev]
...Actually, it looks like snapshots are already being published:  https://repository.apache.org/content/groups/snapshots/org/apache/pig/pig/  Awesome.  On Mon, Apr 30, 2012 at 2...
   Author: Bill Graham, 2012-05-01, 00:16
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