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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 9
product_id | color_id |
---|---|
1 | 1 |
1 | 2 |
1 | 3 |
2 | 1 |
2 | 3 |
2 | 5 |
3 | 2 |
3 | 3 |
4 | 4 |
SELECT 9
INSERT 0 5
product_id | color_id |
---|---|
1 | 2 |
2 | 1 |
2 | 3 |
3 | 2 |
3 | 3 |
1 | 4 |
1 | 5 |
2 | 2 |
4 | 1 |
5 | 3 |
SELECT 10