Question: no repeated number using random function

restart:
with(LinearAlgebra):
A:=RandomMatrix(3,2, generator=1..3);

                               [1   1]
                               [       ]
                               [2   2]
                               [       ]
                               [2   1]

I need to generate a random matrix with non-repeated components in its 1st column. How can I do that?

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