By using db<>fiddle, you agree to license everything you submit by Creative Commons CC0.
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 2
CREATE TABLE
INSERT 0 2
UPDATE 2
id | cityid | location |
---|---|---|
34891 | 111 | {"regionId": "55", "regionName": "Magic region 11", "full address": "..."} |
9372 | 222 | {"regionId": null, "regionName": "Magic region 23", "full address": "..."} |
SELECT 2