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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?.
SELECT 4
| id | post_id | name | body | reply_to_id | relative_depth | path |
|---|---|---|---|---|---|---|
| 1 | 1 | a | a | null | 0 | {1} |
| 2 | 1 | b | b | 1 | 1 | {1,2} |
| 4 | 1 | d | d | 2 | 2 | {1,2,4} |
| 3 | 1 | c | c | 1 | 1 | {1,3} |
SELECT 4