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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 1
INSERT 0 1
INSERT 0 1
id | payload | something |
---|---|---|
1 | a | 15 |
2 | a | 10 |
3 | b | 1 |
SELECT 3
payload | max |
---|---|
a | 15 |
b | 1 |
SELECT 2