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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
CREATE TABLE
INSERT 0 4
CREATE TABLE
INSERT 0 4
| title | address | cp |
|---|---|---|
| Book 1 | C/X nº 2 | 12345 |
| Book 1 | C/X nº 1 | 12345 |
| Book 2 | null | null |
| Book 3 | null | null |
SELECT 4