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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
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
| itemid | itempath |
|---|---|
| 1 | root/subroot/sub-subroot |
| 2 | root/subroot/sub-subroot |
| 3 | root/subroot |
| 4 | root/subroot/sub-subroot/sub-sub-subroot |
| 5 | root/ |
SELECT 5