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?.
| store | city | down | turnover |
|---|---|---|---|
| 1 | Berlin | 1 | 21000 |
| 2 | Essen | 5 | 11000 |
| store | city | turnover |
|---|---|---|
| 2 | Essen | 11000 |
| 1 | Berlin | 21000 |