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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
CREATE TABLE
CREATE TABLE
INSERT 0 1
INSERT 0 1
INSERT 0 1
id common1 common2
3 3 t
2 2 f
1 1 t
SELECT 3
id common1 common2
3 3 t
SELECT 1
id common1 common2 layers at1
2 2 f 3 b
SELECT 1