% This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.

**Example**

```esql
FROM employees
| WHERE emp_no == 10039 OR emp_no == 10040
| SORT emp_no
| EVAL dates = MV_APPEND(birth_date, hire_date)
| KEEP emp_no, birth_date, hire_date, dates
```

| emp_no:integer | birth_date:date | hire_date:date | dates:date |
| --- | --- | --- | --- |
| 10039 | 1959-10-01T00:00:00Z | 1988-01-19T00:00:00Z | [1959-10-01T00:00:00Z, 1988-01-19T00:00:00Z] |
| 10040 | null | 1993-02-14T00:00:00Z | null |