Note - Read about the JOIN operator here
Question-
File A has:
a11, a12
a21, a22
File B has:
a11, b12
b21, b22
Question
If we run the below commands
A = load 'A' as (f, s);
B = load 'B' as (f, t);
E = join A by f RIGHT, B by f;
dump E;
then the output will be
(a11,a12,a11,b12)
(,,b21,b22)
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