Running this query:
select name from folders order by name
returns these results:
alphanumeric a test test 20 test 19 test
You can simply cast name column to bytea data type allowing collate-agnostic ordering:
name
SELECT name FROM folders ORDER BY name::bytea;
Result:
name -------------- a test alphanumeric test 1 test 10 test 19 test 20 (6 rows)