如何使MySQL的SELECT DISTINCT区分大小写？

create temporary table X (name varchar(50) NULL);
insert into X values ('this'), ('This');

现在这个查询：

select distinct(name) from X;

结果是：

this

这里发生了什么？我想SELECT DISTINCT区分大小写.那不应该是默认的吗？

解决方法:

使用BINARY operator：

SELECT DISTINCT(BINARY name) AS Name FROM X;

你也可以选择CAST吧：

SELECT DISTINCT 
(CAST(name AS CHAR CHARACTER SET utf8) COLLATE utf8_bin) AS Name FROM X;

见SQLFiddle