I tried your
Hi,
your problem is that all the data is being loaded in c1, as a
chararray. So b1 is empty.
Somehow PigStorage is not informed of the fact that ',' is a field
separator.
Using PigStorage(',') changes the result, but does not solve the
problem.
I tried modifying the data, using a tab '\t' instead of a comma ',' to
separate c1 from b1, and it works.
So now Data is like this:
a {(1,1,1)}
b {(2,2,2),(3,3,3)}
c {(4,4,4),(5,5,5),(6,6,6)}
Hope it helps,
Gianmarco
PS: Maybe I am wrong, but I think this is a question to be asked on
the pig-user mailing list.
Il giorno 09/set/10, alle ore 12:47, Sankar Sangili ha scritto:
Hi ,
I am new to Pig, would like to know how to work with nested bag. I
tried
with the sample code and am getting an empty output .
Thanks,
Sankar
Data
(a,{(1,1,1)})
(b,{(2,2,2),(3,3,3)})
(c,{(4,4,4),(5,5,5),(6,6,6)})
Query
grunt>A = LOAD 'data' AS (c1:chararray,b1: bag {t1: tuple(i1:int,
i2:int,
i3:int)});
grunt>B = foreach A generate b1;
grunt> dump B;
Output
()
()
()
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