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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?.
| id | tstz_string | tz_string | tstz | tz_posix | ts_at_org_tz | tstz_org | strings_equal |
|---|---|---|---|---|---|---|---|
| 1 | 2018-04-05 06:00:00 +01 | +01 | 2018-04-05 06:00:00+01 | -01 | 2018-04-05 06:00:00 | 2018-04-05 06:00:00 +01 | t |
| 2 | 2018-04-05 06:00:00 +00 | +00 | 2018-04-05 07:00:00+01 | +00 | 2018-04-05 06:00:00 | 2018-04-05 06:00:00 +00 | t |
| 3 | 2018-04-05 06:00:00 -01 | -01 | 2018-04-05 08:00:00+01 | +01 | 2018-04-05 06:00:00 | 2018-04-05 06:00:00 -01 | t |
| 4 | 2018-04-05 04:00:00 -01 | -01 | 2018-04-05 06:00:00+01 | +01 | 2018-04-05 04:00:00 | 2018-04-05 04:00:00 -01 | t |
SELECT 4