honza.mf (5/25/2010)
If someone uses case sensitive collation, he will have all characters in uppercase.
Sounds reasonable, but use COLLATE Czech_CS_AS (instead of the case-insensitive collation) -- SELECT DISTINCT will return three rows (instead of one), and one of the result rows appears (to my non-Czech eyes) to not be what in the Roman alphabet would be called "uppercase"!