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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 9
range_agg
{(,)}
SELECT 1
r bin_range
[2,13) [1,8)
[9,14) [8,9)
(,) empty
[11,25) [10,20)
[16,35) [15,30)
[36,45) [35,40)
[41,55) [40,50)
[51,65) [50,60)
[61,75) [60,70)
SELECT 9