The first string in concat_ws is used as a separator. Since the third value
in the last concat_ws is null, it skipped that and simply concactenated
second and fourth value by **. Hence you got abc8675309
Ritesh
On Fri, Dec 27, 2013 at 12:13 AM, Alexey Zotov wrote:
> Sorry, but in my previo
Hi all,
I am trying to understand how to test a custom UDAF. Looking around, I
found that I can generate a simple query file and run it or use hive plugin
development kit. However I am not able to get anything running as most
places either the instructions are incomplete or mostly available for AN
>>}
>>
>> }
>>
>>
>>
>> *Usage in a Hive script*
>> *
>> *
>> hive -e "
>>
>> create temporary function toupper as
>> &#
play/Hive/GenericUDAFCaseStudy>
> .
>
> The O'Reilly book "Programming Hive" also has a section called
> "User-Defined Aggregate Functions" in chapter 13 (Functions), pages 172 to
> 176.
>
> -- Lefty
>
>
> On Sun, Aug 4, 2013 at 7:12 AM, Ritesh Agrawa
Hi all,
I am trying to write a UDAF function. I found an example that shows how to
implement a UDAF in "Hadoop The Definitive Guide" book. However I am little
confused. In the book, the author extends UDAF class and implements init,
iterate, terminatePartial, merge and terminate function. Howe
a example helpful:
> http://grepcode.com/file/repository.cloudera.com/content/repositories/releases/org.apache.hadoop.hive/hive-contrib/0.7.0-cdh3u0/org/apache/hadoop/hive/contrib/udaf/example/UDAFExampleMaxMinNUtil.java#UDAFExampleMaxMinNUtil.Evaluator
>
> igor
> decide.com
>
>
&
artial to the
> merge functions. But it seems a bit of overkill.
>
> Why not define a class within your UDAF which has 4 public data members,
> and return instances of that class from terminatePartial()?
>
> Robin
>
>
> On 7/29/13 3:19 PM, "Ritesh Agrawal" wrot
Hi all,
I am writing my first UDAF. In my terminatePartial() function, I need to store
different data having different data types. Below is a list of items that I
need to store
1. C1 : list of doubles
2. C2: list of doubles
3. C3: double
4. Show: list of strings
I am wondering can I use simple
