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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?.
3 rows affected
4 rows affected
3 rows affected
id | val | ?column? |
---|---|---|
A | 4 | null |
A | null | 7 |
B | 5 | null |
B | 6 | null |
B | null | 8 |
C | 7 | null |
C | null | 9 |