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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
| id | distance | length | cum_length |
|---|---|---|---|
| 4 | 1 | 3 | 3 |
| 5 | 3 | 2 | 5 |
| 2 | 5 | 2 | 7 |
SELECT 3