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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?.
5 rows affected
| rn | idx | val |
|---|---|---|
| 1 | 1 | INDIA |
| 1 | 2 | BNG |
| 1 | 2 | CHN |
| 1 | 2 | HYD |
| 2 | 1 | SWEDEN |
| 2 | 2 | STOCK |
| 2 | 2 | VAXO |