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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
CREATE TABLE
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
INSERT 0 1
group_id | sum | sum |
---|---|---|
1 | 10 | 10 |
2 | 100 | 110 |
SELECT 2
group_id | tableamnt | table2amt |
---|---|---|
1 | 10 | 10 |
2 | 100 | 110 |
SELECT 2