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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 3
id | value | parent_id | root | lev | level |
---|---|---|---|---|---|
1 | foo | null | null | 1 | 3 |
2 | bar | 1 | null | 2 | 2 |
3 | baz | 2 | null | 3 | 1 |
SELECT 3