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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 1
| id | data |
|---|---|
| 1 | [{"to": 5, "from": 1, "country": 1}, {"to": 11, "from": 6, "country": 2}, {"to": 20, "from": 12, "country": 3}] |
SELECT 1
| id | element |
|---|---|
| 1 | {"to": 5, "from": 1, "country": 1} |
SELECT 1