Nevermind problem fixed, selections issue.

params ["_array", "_value", ["_column", 0]];
private _index = {if(_x param [_column] isEqualTo _value) exitWith {_forEachIndex};} forEach _array;
[_index, -1] select (isNil"_index");

This way is even faster.

Here is another way to code this function, proposed by Sa-Matra and this way is 20-25% faster:

Please disregard this post, i managed to make it work.