Mybatis查询的字符串字段的顺序有些是逆序

Question

下图是后台mybatis的返回值

下图是数据库的查询结果

下面是sql语句

     SELECT COUNT(1) as count, mc.calendar_year_month as calendarTime ,
    mc.calendar_month as calendarMonth,
    group_concat(mc.calendar_name) as calendarNames
    FROM kbpos_marketing.marketing_calendar mc
    WHERE mc.calendar_year_month <![CDATA[ >= ]]> #{beginDate}
    AND mc.calendar_year_month <![CDATA[ <= ]]> #{endDate} AND mc.delete_flag=0
    GROUP BY mc.calendar_year_month,mc.calendar_month
    ORDER BY mc.calendar_year_month,mc.calendar_month;

这个字段是string类型，数据库中也是字符串类型
private String calendarNames;
为什么会这个节日的顺序不一样呢？

Answer 1