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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 8
id date value_1 value_2
1 2022-01-04 5 asdf
1 2022-01-03 null null
1 2022-01-02 null def
1 2022-01-01 4 null
2 2022-01-04 1 a
2 2022-01-03 null null
2 2022-01-02 2 b
2 2021-12-31 null null
SELECT 8
id date value_1 value_2
1 2022-01-04 5 asdf
1 2022-01-03 4 def
1 2022-01-02 4 def
1 2022-01-01 4 null
2 2022-01-04 1 a
2 2022-01-03 2 b
2 2022-01-02 2 b
2 2021-12-31 null null
SELECT 8
UPDATE 4
UPDATE 4
id date value_1 value_2
1 2022-01-04 5 asdf
1 2022-01-03 4 def
1 2022-01-02 4 def
1 2022-01-01 4 null
2 2022-01-04 1 a
2 2022-01-03 2 b
2 2022-01-02 2 b
2 2021-12-31 null null
SELECT 8