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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?.
SELECT 5
SELECT 2
| id | xyz | ids |
|---|---|---|
| 1 | A | [1, 2] |
| 2 | B | [1, 2] |
| 3 | C | [3, 4, 5] |
| 4 | D | [3, 4, 5] |
| 5 | E | [3, 4, 5] |
SELECT 5