mysql - mysql中隐藏列的方法

Question

有没有办法“隐藏”以下查询中的百分比列？

SELECT 
    ((SUM(is_correct) / COUNT(*)) * 100) percentage, worker_id 
FROM 
    main_mturklog 
GROUP BY 
    worker_id HAVING percentage < 80

基本上，我只想查看结果中的worker_id。

Answer 1

SELECT 
    worker_id 
FROM 
    main_mturklog 
GROUP BY 
    worker_id 
HAVING ((SUM(is_correct) / COUNT(*)) * 100) < 80