Returns a subset from the end of a set, using the current order of the set.
This function returns a set that consists of the specified number of elements from the end of the given set (considering the current order of the set). If
integer_expression is less than 1, the function returns the empty set. If
integer_expression is greater than the number of elements of the set, the function returns the original set.
The elements of the subset are returned in the same order specified by the original set.