why :ets.first and :ets.last return the same value?

[zak9...@gmail.com]

iex(1)> :ets.new(Test, [:named_table])

iex(2)> :ets.insert(Test, [{:foo, 1, 2}, {:bar, 1, 2}])

In the above example both :ets.first(Test) and :ets.last(Test) return :bar. why?

[Saša Jurić]

It's explained in ETS docs: http://www.erlang.org/doc/man/ets.html#last-1

Returns the last key Key according to Erlang term order in the table Tab of the ordered_set type. If the table is of any other type, the function is synonymous to first/2.