Swing tuple merge

Question

I have two sets of tuples, and I want the internal connection of their first element and combine the other parts into one tuple, I wonder how to implement this on rice on Hadoop?

Enter two sets of tuples,

1,(1,2)
2,(2,3)

1,(b,c,b,c)
2,(c,d,c,d)

Expected Result,

1,(1,2,b,c,b,c)
2,(2,3,c,d,c,d)

thanks in advance Lin

Answer 1

A thought worthy of contemplation ...

Inputs

dataA:

1   (1,2)
2   (2,3)

dataB:

1   (b,c,b,c)
2   (c,d,c,d)

Pig Script:

A = LOAD 'dataA'  USING  PigStorage('\t') AS  (aid:long, atuple : tuple(af1:long, af2:long));
B = LOAD 'dataB'  USING  PigStorage('\t') AS  (bid:long, btuple : tuple(bf1:chararray, bf2:chararray, bf3:chararray, bf4:chararray));
C = JOIN A BY aid, B BY bid;
D = FOREACH C GENERATE aid AS id, FLATTEN(atuple) AS (af1:long, af2:long) , FLATTEN(btuple) AS (bf1:chararray, bf2:chararray, bf3:chararray, bf4:chararray);
E = FOREACH D GENERATE id, (af1..bf4);
DUMP E;

Output: DUMP E:

(1,(1,2,b,c,b,c))
(2,(2,3,c,d,c,d))