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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 5
| trunc_15_minute | dff |
|---|---|
| 2023-05-11 20:45:00 | 0.150 |
| 2023-05-11 21:00:00 | 0.400 |
SELECT 2