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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
| user_id | roll |
|---|---|
| 3 | 0.6276717973655852 |
| 1 | 0.6212864061082957 |
| 5 | 0.39069466163387156 |
SELECT 3