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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 4
id | elem |
---|---|
1 | a |
2 | null |
3 | null |
4 | x |
4 | y |
4 | z |
SELECT 6
id | elem |
---|---|
1 | a |
2 | null |
3 | null |
4 | x |
4 | y |
4 | z |
SELECT 6