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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
| title | author | created_at | post_num |
|---|---|---|---|
| Johns first post | John | 2021-01-01 | 1 |
| Johns second post | John | 2021-01-02 | 2 |
| Johns third post | John | 2021-01-03 | 3 |
| Mikes first post | Mike | 2021-01-01 | 1 |
| Mikes second post | Mike | 2021-01-02 | 2 |
| Mikes third post | Mike | 2021-01-03 | 3 |
SELECT 6