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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
tbl_id
1
INSERT 0 1
tbl_id
2
INSERT 0 1
tbl_id
3
INSERT 0 1
tbl_id filename
1 my_filename1
2 my_filename2
3 my_filename3
SELECT 3