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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
| v1 | v2 | cmp |
|---|---|---|
| {1,2} | {1,3} | false |
| {2,2} | {2,1} | true |
| {1,2,3} | {1,2,4} | false |
| {1,10} | {1,2} | true |
SELECT 4