Argh noooo, sigh.

Sure it solves the problems with namespaces but it looks ugly and will confuse people. not to mention making IDE's and editors go insane trying to parse the namespaces as escape sequences.

What was wrong with just poping an error when a name collision occurs?

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mysql> SELECT * FROM `users` WHERE `users`.`clue` > 0;
Empty set (0.00 sec)