有没有一种方法可以在子查询的底部添加列总计

Question

我很难在最后一行显示列的总计。

SELECT  AgeGroup, COUNT(CASE WHEN sex='Male' THEN 1 END) AS Male_Patients, COUNT(CASE WHEN sex='Female' THEN 1 END) AS Female_Patients, COUNT(*) AS Total
FROM(SELECT  
    CASE
            WHEN  age <1 THEN 'Under age 1'
            WHEN  age =1 THEN 'Age 1'
            .........
            WHEN  age >= 85 THEN 'Age 85 AND over'
            ELSE 'Unknown'
            END AS AgeGroup,
    CASE
            WHEN  age <1 THEN 0
            ..........
            WHEN age >= 85 THEN 37
            WHEN age IS NULL THEN 38
    END as grp_order, sex
    FROM (SELECT FLOOR(DATEDIFF('2019-06-30', p.DOB) / 365.25) as age, p.sex AS sex, e.id, e.date
          FROM  patient_data AS p
          JOIN form_encounter AS e
          ON p.id = e.id
          WHERE e.date BETWEEN 'date' AND 'date'
          GROUP BY e.id
          ) as Age_subquery
    ) AS AGE_Group_subquery
GROUP BY AgeGroup
ORDER BY grp_order

有没有办法像这样在底部包含列总计：

 AgeGroup      Male_Patients       Female_Patients       Total
 Under age 1        100                150               250
 .....              ...                ...               ...
 Age 85 AND over    50                  50               100
 Grand Total        150                200               350