Answer Posted / mahendra garewal

Your result will come as per you specify the first/last
record. as it does not sort the records.

ex:
Input
A B C
----------
1 a d
4 f h
6 y g
7 g u
2 i o

Output
a: if selected first record in dedup
A B C
----------
1 a d

b: if selected last record in dedup
A B C
----------
2 i o

headers and trailers are processed like this only.

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