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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 3
CREATE TABLE
INSERT 0 3
| last_order | first_order |
|---|---|
| 2020-04-10 | null |
| 2020-06-15 | null |
| 2020-08-26 | null |
| null | 2020-03-10 |
| null | 2020-05-15 |
| null | 2020-01-17 |
SELECT 6