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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?.
| part | Rownumber by part | stock 95er Percentile1 | Rownumber total | stock 95er Percentile2 | x |
|---|---|---|---|---|---|
| 0 | 1 | 95.05 | 1 | 95.05 | 1 |
| 1 | 1 | 95.05 | 2 | 95.05 | 2 |
| 2 | 1 | 95.05 | 3 | 95.05 | 3 |
| 3 | 1 | 95.05 | 4 | 95.05 | 4 |
| 4 | 1 | 95.05 | 5 | 95.05 | 5 |
| 5 | 1 | 95.05 | 6 | 95.05 | 6 |
| 6 | 1 | 95.05 | 7 | 95.05 | 7 |
| 7 | 1 | 95.05 | 8 | 95.05 | 8 |
| 8 | 1 | 95.05 | 9 | 95.05 | 9 |
| 9 | 1 | 95.05 | 10 | 95.05 | 10 |