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Help with an interesting Postgres question: Why isn't an Index Only Scan used on a partition accessed via the parent table?.
CREATE TABLE
INSERT 0 6
CREATE TABLE
INSERT 0 6
| staff_id | entry_date | total_rate |
|---|---|---|
| 1 | 2019-01-15 | 1 |
| 1 | 2019-02-15 | 4 |
| 1 | 2019-03-15 | 9 |
| 2 | 2019-01-15 | 16 |
| 2 | 2019-02-15 | 25 |
| 2 | 2019-03-15 | 36 |
SELECT 6