相关疑难解决方法(0)

是否可以发出多个选择查询，其结果集通过联合合并到同一个输出文件中？

我正在尝试做但不起作用：

(SELECT email FROM table WHERE createdate >= date_sub(now(), interval 1 year))
UNION DISTINCT
(SELECT email FROM table WHERE createdate < date_sub(now(), interval 1 year) AND email not like '%@gmail.com')
INTO OUTFILE '/tmp/emailDump.txt' FIELDS TERMINATED BY "," LINES TERMINATED BY "\n";