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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?.
| n | timezone |
|---|---|
| 0 | 2020-04-13 00:00:00 |
| 1 | 2020-04-12 00:00:00 |
| 2 | 2020-04-11 00:00:00 |
| 3 | 2020-04-10 00:00:00 |
| 4 | 2020-04-09 00:00:00 |
| 5 | 2020-04-08 00:00:00 |
| 6 | 2020-04-07 00:00:00 |
| 7 | 2020-04-06 00:00:00 |
| 8 | 2020-04-05 00:00:00 |
| 9 | 2020-04-04 00:00:00 |
| 10 | 2020-04-03 00:00:00 |
| 11 | 2020-04-02 00:00:00 |
| 12 | 2020-04-01 00:00:00 |
| 13 | 2020-03-31 00:00:00 |
| 14 | 2020-03-30 00:00:00 |
| 15 | 2020-03-29 00:00:00 |
| 16 | 2020-03-28 00:00:00 |
| 17 | 2020-03-27 00:00:00 |
| 18 | 2020-03-26 00:00:00 |
| 19 | 2020-03-25 00:00:00 |
| 20 | 2020-03-24 00:00:00 |