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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 7
id name child1 age1 child2 age2 child3 age3
1 Rachel cell 10 jay 15 john 20
2 Jereme greg 5.5 Les 17 ven 27
3 Larry gray 12 null null null null
SELECT 3