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[expand - 1 more] - 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
Re: Working with an unknown number of values - Pig - [mail # user]
...Dmitriy,      I see your point. It would definitely be nice to have a builtin for returning a bag though. I'd actually be happy if TOBAG(FLATTEN(STRSPLIT(X,','))) worked. &nbs...
   Author: Jacob Perkins, 2011-05-08, 02:55
Yet more NPEs with TOP - Pig - [mail # user]
...Hello all,  I have a bit of a maddening issue with builtin TOP. Consider the following script:   A = LOAD '$DATA' AS (a_bag:bag {t:tuple (value:double)}); B = FOREACH A {   &n...
   Author: Jacob Perkins, 2011-05-07, 05:30
[expand - 1 more] - Re: Can I pass an entire relation to a Pig UDF? - Pig - [mail # user]
...What you've indicated does require access to the whole relation at once or at least a way of incrementing a counter and assigning its value to each tuple. This kind of shared/synchronized st...
   Author: Jacob Perkins, 2011-04-27, 02:54
[expand - 1 more] - Re: SAMPLE after a GROUP BY - Pig - [mail # user]
...JIRA filed, see:  https://issues.apache.org/jira/browse/PIG-2014  @thedatachef  On Mon, 2011-04-25 at 09:02 -0700, Alan Gates wrote:...
   Author: Jacob Perkins, 2011-04-26, 14:43
Re: How to transform Bag to table - Pig - [mail # user]
...Nested cross is not supported at the moment, though it is in the works, see: https://issues.apache.org/jira/browse/PIG-1916  Meanwhile, you could write a UDF to cross the items manually...
   Author: Jacob Perkins, 2011-04-26, 13:39
[expand - 2 more] - Re: SUM - Pig - [mail # user]
...That changes things entirely. There's some weirdness in the way data is read from Cassandra. Have you applied the latest patches (eg. https://issues.apache.org/jira/browse/CASSANDRA-2387) ? ...
   Author: Jacob Perkins, 2011-04-24, 16:46
Re: How to flatten a map? - Pig - [mail # user]
...Sending to the list as well. Sorry about that.    Is it possible for you to read your data into a databag instead? That way you don't have to know the keys explicitly and FLATTEN w...
   Author: Jacob Perkins, 2011-02-28, 06:25
Re: Strange problem with CDH3 Beta 4 - Pig - [mail # user]
...Had this. It's because Pig packages the Hadoop 0.20 classes into its jar. Tail the namenode logs when you run the Pig shell and you'll see an error about version. Try the instructions here: ...
   Author: Jacob Perkins, 2011-02-23, 12:53
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