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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?.
create table test (id int);
insert into test values (1), (2), (3), (4);
select * from test
ORDER BY id = 2 DESC, id;
4 rows affected
| id |
|---|
| 2 |
| 1 |
| 3 |
| 4 |