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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
3 rows affected
id val idx
1111 11 1
2222 22 2
3333 33 3
id new_val old_val
1111 111 11
3333 333 33
id val idx
2222 22 2
1111 111 1
3333 333 3