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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 5
| id | foo_content | condition_col |
|---|---|---|
| 1 | Sing, O goddess | 99 |
| 2 | the anger of Achilles | 99 |
| 3 | son of Peleus | 99 |
| 4 | that brought countless ills | 2 |
| 5 | upon the Achaeans | 3 |
SELECT 5
CREATE FUNCTION
| old_id | new_id |
|---|---|
| 1 | 6 |
| 2 | 7 |
| 3 | 8 |
SELECT 3
| id | foo_content | condition_col |
|---|---|---|
| 1 | Sing, O goddess | 99 |
| 2 | the anger of Achilles | 99 |
| 3 | son of Peleus | 99 |
| 4 | that brought countless ills | 2 |
| 5 | upon the Achaeans | 3 |
| 6 | Sing, O goddess | 100 |
| 7 | the anger of Achilles | 100 |
| 8 | son of Peleus | 100 |
SELECT 8