What is the type of a Row Key? Can you define how they are compared? I ask because I'm using TimeUUIDs as my row keys, but when I make a call to get a range of row keys (get_range in phpcassa) I have to specify the UTF8 range of '' to '99999999-9999-9999-9999-999999999999' instead of the TimeUUID range of '00000000-0000-0000-0000-000000000000' to 'ffffffff-ffff-ffff-ffff-ffffffffffff'.
This works, but feels wrong/inefficient... thoughts? Thanks... Bill-
