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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?.
sdate | value |
---|---|
2018-01-01 | 100 |
2018-01-03 | 300 |
2018-02-10 | 1 |
2018-02-21 | 5 |
2018-10-10 | 1 |
2018-03-21 | 5 |
SELECT 6
month_begin | month_end | sum |
---|---|---|
2018-01-01 | 2018-01-31 | 400 |
2018-10-01 | 2018-10-31 | 1 |
2018-03-01 | 2018-03-31 | 5 |
2018-02-01 | 2018-02-28 | 6 |
SELECT 4