mysql全文列优先级

Question

如何在mysql全文搜索中为多列设置优先级？

SELECT ID, POSITION, DATA, DATE_FORMAT(DATA, '%Y-%m-%d') AS DATE 
FROM VACANCIES 
WHERE VACANCIES.VISIBLE = '1' 
AND MATCH(POSITION, REQUITEMENST) AGAINST('mysql') 
AND MATCH(POSITION, REQUITEMENST) AGAINST('php') 
ORDER BY DATE(DATA) DESC 
LIMIT 1000

我需要获得匹配列POSITION的第一个结果，然后是REQUITEMENST