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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 my_table
(id, name, status, realm_id)as values
(1, 'cash', 'denied', 123)
,(2, 'check', 'closed', 123)
,(3, 'payroll','denied', 123)
,(4, 'cash', 'pending', 456)
,(5, 'deposit','suspended', 456)
,(6, 'lending','expired', 456)
,(7, 'loan', 'trial', 456)
,(8, 'crypto', 'active', 456)
,(9, 'payroll','closed', 456);
table my_table;
SELECT 9
| id | name | status | realm_id |
|---|---|---|---|
| 1 | cash | denied | 123 |
| 2 | check | closed | 123 |
| 3 | payroll | denied | 123 |
| 4 | cash | pending | 456 |
| 5 | deposit | suspended | 456 |
| 6 | lending | expired | 456 |
| 7 | loan | trial | 456 |
| 8 | crypto | active | 456 |
| 9 | payroll | closed | 456 |
SELECT 9