-- SQLNESS ARG version=v0.9.5
CREATE TABLE alter_test (
    id INT,
    val STRING,
    ts TIMESTAMP TIME INDEX,
    PRIMARY KEY(id)
);

Affected Rows: 0

INSERT INTO alter_test(id, val, ts) VALUES (1, 'a', 1672531200000);

Affected Rows: 1

-- SQLNESS ARG version=latest
ALTER TABLE alter_test ADD COLUMN new_col INT;

Affected Rows: 0

SHOW CREATE TABLE alter_test;

+------------+-------------------------------------------+
| Table      | Create Table                              |
+------------+-------------------------------------------+
| alter_test | CREATE TABLE IF NOT EXISTS "alter_test" ( |
|            |   "id" INT NULL,                          |
|            |   "val" STRING NULL,                      |
|            |   "ts" TIMESTAMP(3) NOT NULL,             |
|            |   "new_col" INT NULL,                     |
|            |   TIME INDEX ("ts"),                      |
|            |   PRIMARY KEY ("id")                      |
|            | )                                         |
|            |                                           |
|            | ENGINE=mito                               |
|            |                                           |
+------------+-------------------------------------------+

INSERT INTO alter_test(id, val, ts, new_col) VALUES (2, 'b', 1672531201000, 100);

Affected Rows: 1

SELECT * FROM alter_test ORDER BY id;

+----+-----+---------------------+---------+
| id | val | ts                  | new_col |
+----+-----+---------------------+---------+
| 1  | a   | 2023-01-01T00:00:00 |         |
| 2  | b   | 2023-01-01T00:00:01 | 100     |
+----+-----+---------------------+---------+

DROP TABLE alter_test;

Affected Rows: 0