alter_table.sql

In the alter table regression test, alter_table.sql, it says:

-- 20 values, sorted
SELECT unique1 FROM ten_k WHERE unique1 < 20;

-- 20 values, sorted
SELECT unique2 FROM ten_k WHERE unique2 < 20;

Why sorted? Shouldn't it be

SELECT unique1 FROM ten_k WHERE unique1 < 20 ORDER BY unique1;

if we really expect the output to be sorted?

Cheers,

Patrick