SELECT * FROM `profiles`  WHERE `country` = 'algeria' AND `gender` = 'w' AND `gender` = 'w' AND `active` = '1'  ORDER BY RAND() LIMIT 20

Mysql Error:

Disk full (/tmp/#sql-temptable-277-1c2064-12bd9.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")