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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
CREATE TABLE
CREATE TABLE
INSERT 0 4
INSERT 0 4
INSERT 0 1
month | co_count | tm_count | tw_count |
---|---|---|---|
2019-03 | 0 | 1 | 1 |
2019-04 | 1 | 2 | 0 |
2019-05 | 3 | 1 | 0 |
SELECT 3