By using db<>fiddle, you agree to license everything you submit by Creative Commons CC0.
| column | FirstOfWeek | LastOfWeek |
|---|---|---|
| 2020-53 | 2020-12-28 | 2021-01-03 |
| 2021-01 | 2021-01-04 | 2021-01-10 |
| 2021-02 | 2021-01-11 | 2021-01-17 |
| 2021-48 | 2021-11-29 | 2021-12-05 |
| 2021-53 | 2022-01-03 | 2022-01-09 |
| 2022-01 | 2022-01-03 | 2022-01-09 |
| 2022-02 | 2022-01-10 | 2022-01-16 |