我有一个包含产品 ID、类别 ID 和产品状态的表格。
+---------+-------------+-------------+
| id | cat_id | status |
+---------+-------------+-------------+
| 1 | 1 | 1 |
| 2 | 1 | 1 |
| 3 | 2 | 1 |
| 4 | 2 | 0 |
| 5 | 1 | 0 |
| 6 | 2 | 0 |
+---------+-------------+-------------+
如何根据其状态进行分组，然后根据其类别 ID 计算其产品和总数？我期待这样：
+---------+-------------+-------------+-----------+
| cat_id | published | unpublished | totals |
+---------+-------------+-------------+-----------+
| 1 | 2 | 1 | 3 |
| …