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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 4
first | second | data |
---|---|---|
1 | 2 | test |
1 | 3 | testing |
1 | 2 | testing |
2 | 2 | testing |
SELECT 4
CREATE TABLE
ERROR: duplicate key value violates unique constraint "test1_pkey" DETAIL: Key (first, second)=(1, 2) already exists.
CREATE TABLE
INSERT 0 4
id | first | second | data |
---|---|---|---|
1 | 1 | 2 | test |
2 | 1 | 3 | testing |
3 | 1 | 2 | testing |
4 | 2 | 2 | testing |
SELECT 4