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 1
INSERT 0 1
INSERT 0 1
col1 | col2 |
---|---|
1 | {a,b,c} |
2 | null |
3 | {a,d,d} |
SELECT 3
array_agg |
---|
{a,b,c,a,d,d} |
SELECT 1
array_agg |
---|
{a,b,c,d} |
SELECT 1