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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 13
| county | candidate | votes |
|---|---|---|
| Abbeville | Hillary Clinton | 1501 |
| Abbot | Bernie Sanders | 1 |
| Abington | Bernie Sanders | 1352 |
SELECT 3
| county | candidate | votes |
|---|---|---|
| Abbeville | Hillary Clinton | 1501 |
| Abbot | Bernie Sanders | 1 |
| Abington | Bernie Sanders | 1352 |
SELECT 3