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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
4 rows affected
A | B | C | cnt |
---|---|---|---|
2 | 1 | 2 | 2 |
1 | 5 | 5 | 2 |
2 | 1 | 4 | 3 |
1 | 1 | 1 | 1 |