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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?.
4 rows affected
| col_a | col_b | col_c | test |
|---|---|---|---|
| A | B | C | 1 |
| B | C | A | 2 |
| C | A | B | 3 |
| D | E | F | 4 |
| col_a | col_b | col_c | test |
|---|---|---|---|
| B | C | A | 2 |
| D | E | F | 4 |