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Re: header of a tuple/bag - Pig - [mail # user]
...It generally depends on what type of Storage mechanism is used. If it's PigStorage() then this information is not encoded into the data.  Assuming that the storage is PigStorage() and t...
   Author: Pradeep Gollakota, 2013-07-16, 18:30
Re: Problem with nested FOREACH, bag semantics and UDF - Pig - [mail # user]
...Just to confirm... you want your output to read as follows,  {1, {(1, count), (2, count), ..., (10, count)}} {1, {(11, count), (12, count), ..., (20, count)}} ... correct?  I think...
   Author: Pradeep Gollakota, 2013-07-15, 17:41
Re: Concatenate strings within a group - Pig - [mail # user]
...I'm not aware of any native PIG commands that can do this. So you'll have to implement a UDF to do this. My implementation would look as follows:  A = load 'data' as (id: int, seg_num: ...
   Author: Pradeep Gollakota, 2013-07-14, 17:52
Re: Error Handling in Scripts? - Pig - [mail # user]
...I have not tried this yet, but hadoop has a built-in mechanism for skipping bad records. I'm guessing that it would work fine with Pig. http://hadoop.apache.org/docs/r1.1.2/mapred_tutorial.h...
   Author: Pradeep Gollakota, 2013-07-11, 17:46
Re: ERROR 1071: Cannot convert a generic_writablecomparable to a String - Pig - [mail # user]
...Instead of doing "values.add((Text) value);" try doing "values.add(value.toString());" (And make sure that values is of type List instead of List)  I'm not too sure of the details but t...
   Author: Pradeep Gollakota, 2013-07-10, 20:01
Re: include a script in another script? ┬┐error in macro Pig? - Pig - [mail # user]
...If it's just registering common jars and defining aliases for UDFs, I think you can do think in .pigrc or in .pigbootup   On Fri, Jul 5, 2013 at 6:56 AM, Miguel Angel Martin junquera &n...
   Author: Pradeep Gollakota, 2013-07-05, 17:50
Re: dereferencing bag of map - Pig - [mail # user]
...Suresh,  Look into using JsonStorage(). This seems to be what you're looking for. http://pig.apache.org/docs/r0.10.0/func.html#jsonloadstore   On Fri, Jun 21, 2013 at 8:35 AM, Shah...
   Author: Pradeep Gollakota, 2013-06-21, 12:42
Re: Loading data from ranges of ordered subdirs - Pig - [mail # user]
...There's two possibilites that come to mind.  1. Write a custom LoadFunc in which you can handle these regular expressions. *Not the most ideal solution* 2. Use HCatalog. The example the...
   Author: Pradeep Gollakota, 2013-06-10, 21:02
Re: Maintain sort within GROUP BY? - Pig - [mail # user]
...I think you are looking for http://pig.apache.org/docs/r0.7.0/api/org/apache/pig/data/DataBag.html#isSorted()  If I'm not mistaken, if your initially loaded bag is sorted, then they wou...
   Author: Pradeep Gollakota, 2013-06-06, 19:19
Re: Tracking parts of a job taking the most time - Pig - [mail # user]
...This may not be what you're looking for, but you can also try using Twitter Ambrose to monitor your Pig scripts as a whole.  https://github.com/twitter/ambrose  Not sure what you m...
   Author: Pradeep Gollakota, 2013-06-06, 11:22
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