mysql支持update ignore语法，：

drop TABLE if EXISTS students;
CREATE TABLE `students` (
  `id` int NOT NULL,
  `name` varchar(50) DEFAULT NULL,
  `age` int DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `age` (`age`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci

INSERT INTO students (id, name, age) VALUES (1, 'Alice', 18);
INSERT INTO students (id, name, age) VALUES (2, 'Bob', 20);
INSERT INTO students (id, name, age) VALUES (3, 'TOM', 19);

mysql> SELECT * from students;
+----+-------+------+
| id | name  | age  |
+----+-------+------+
|  1 | Alice |   18 |
|  2 | Bob   |   20 |
|  3 | TOM   |   19 |
+----+-------+------+

更新年龄

mysql> UPDATE IGNORE students
    -> SET age = 18
    -> WHERE name = 'TOM';
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1  Changed: 0  Warnings: 1

mysql> SELECT * from students;
+----+-------+------+
| id | name  | age  |
+----+-------+------+
|  1 | Alice |   18 |
|  2 | Bob   |   20 |
|  3 | TOM   |   19 |
+----+-------+------+

想要将TOM的年龄改成18，碰到age字段的unique约束冲突，mysql会自动忽略该记录，不修改，并且也不报错。

达梦是否支持该语法，或者有办法改造么？