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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 8
CREATE TABLE
INSERT 0 3
| date | pageviews | weighted_moving_average |
|---|---|---|
| 2020-02-01 | 42 | null |
| 2020-02-02 | 3 | null |
| 2020-02-03 | 216 | 87 |
| 2020-02-04 | 186 | 135 |
| 2020-02-05 | 510 | 304 |
| 2020-02-06 | 419 | 371.666666666667 |
| 2020-02-07 | 64 | 331 |
| 2020-02-09 | 230 | 98 |
SELECT 8