如何获取mysql group by子句中缺失日期的零计数

-- 创建日期范围表
CREATE TABLE dates (
  date_column DATE
);

-- 插入需要的日期范围
INSERT INTO dates (date_column)
SELECT '2022-01-01' + INTERVAL (a.a + (10 * b.a) + (100 * c.a)) DAY
FROM (SELECT 0 AS a UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) AS a
CROSS JOIN (SELECT 0 AS a UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) AS b
CROSS JOIN (SELECT 0 AS a UNION ALL SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3 UNION ALL SELECT 4 UNION ALL SELECT 5 UNION ALL SELECT 6 UNION ALL SELECT 7 UNION ALL SELECT 8 UNION ALL SELECT 9) AS c
LIMIT 365; -- 根据需要的日期范围进行限制

-- 查询缺失日期的零计数
SELECT dates.date_column, COUNT(your_table.some_column) AS count
FROM dates
LEFT JOIN your_table ON dates.date_column = DATE(your_table.date_column)
WHERE dates.date_column BETWEEN '2022-01-01' AND '2022-12-31' -- 根据需要的日期范围进行筛选
GROUP BY dates.date_column
ORDER BY dates.date_column;