By using db<>fiddle, you agree to license everything you submit by Creative Commons CC0.
Help with an interesting Postgres question: Why isn't an Index Only Scan used on a partition accessed via the parent table?.
SELECT 3
| col1 | col2 | col3 | col4 |
|---|---|---|---|
| a | 1 | 2016-01-01 | bbb |
| c | 2 | 2018-01-01 | ddd |
| e | 3 | 2019-01-01 | eee |
SELECT 3