Just try for example:

Select distinct col_tinyint from test_table
  order by col_tinyint desc

And you will see an ascending result, this is one
of the fixes applied in 11.0.3! If it's worth it, only
you can answer that (also considered upgrading to 11.5?)!

--
Greetings,

Nick van Gerwen :)
DBA/IT Consultant
Cap Gemini Netherlands