Thanks for the quick reply, but my question is a little different.
I am sorry if i am not clear in my initial post.
I want the Pig script to consider E and F as null if the values are not present
in the input line.
So basically all the lines should be loaded while firing :
>> A= load '$in_dir' using PigStorage('\t') as (A, B,C,D,E,F);
irrespective of whether any of the fields are null or not.
How can we achieve this?
Thanks & Regards,
Arun
On May 25, 2011, at 3:35 PM, Alan Gates wrote:
> No, but you can make it by adding:
>
> B = filter A by E is not null;
>
> Alan.
>
> On May 25, 2011, at 3:22 PM, Arun Chandy Thomas wrote:
>
>> Hi ,
>>
>> I am trying to use pig to aggregate data from an applications log lines.
>>
>> Most of the data in the input file have the following format:
>> A B C D E F
>>
>> I am aggregating the data as follows:
>>
>> A= load '$in_dir' using PigStorage('\t') as (A, B,C,D,E,F);
>> D = group A by (A, B,C,D,E,F);
>> E = FOREACH D GENERATE FLATTEN(group) as (A, B,C,D,E,F ),COUNT(A) as hit
>> STORE E INTO '$in_dir._1' using PigStorage('\t');
>>
>> In some cases i see the input lines are only : A B C D (E,F
>> columns are missing)
>> Would the pig script ignore such lines.
>>
>> Thanks & Regards,
>> Arun
>
