(worker_id, event_date) is the PRIMARY KEY.

based on table above, Write an SQL query that reports the first login date for each worker.

answer should look like this:

worker_id | computer_id | event_date | tasks 1 | 11 21 31 31 1 | 2 | 2019-03-01 | 2 | 2019-05-02 3 2020-06-25 1 | 2019-03-02 | 4 | 2020-07-03 | 3 2020-08-02 5 3 1 0 2 4 worker_id | first_login 1 | 2019-03-01 2 | 2020-06-25 3 | 2019-03-02