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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