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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?.
6 rows affected
user_id | login_ts | logout_ts |
---|---|---|
USER1 | 2021-02-03 09:23:00 | 2021-02-03 11:44:00 |
USER2 | 2021-02-03 10:49:00 | 2021-02-03 13:30:00 |
USER3 | 2021-02-03 13:32:00 | 2021-02-03 15:31:00 |
USER4 | 2021-02-04 13:50:00 | 2021-04-03 14:53:00 |
USER5 | 2021-02-04 14:44:00 | 2021-04-03 15:21:00 |
USER6 | 2021-02-04 14:52:00 | 2021-04-03 17:59:00 |
ts | inc | num_overlaps | next_ts |
---|---|---|---|
2021-02-03 09:23:00 | 1 | 1 | 2021-02-03 10:49:00 |
2021-02-03 10:49:00 | 1 | 2 | 2021-02-03 11:44:00 |
2021-02-03 11:44:00 | -1 | 1 | 2021-02-03 13:30:00 |
2021-02-03 13:30:00 | -1 | 0 | 2021-02-03 13:32:00 |
2021-02-03 13:32:00 | 1 | 1 | 2021-02-03 15:31:00 |
2021-02-03 15:31:00 | -1 | 0 | 2021-02-04 13:50:00 |
2021-02-04 13:50:00 | 1 | 1 | 2021-02-04 14:44:00 |
2021-02-04 14:44:00 | 1 | 2 | 2021-02-04 14:52:00 |
2021-02-04 14:52:00 | 1 | 3 | 2021-04-03 14:53:00 |
2021-04-03 14:53:00 | -1 | 2 | 2021-04-03 15:21:00 |
2021-04-03 15:21:00 | -1 | 1 | 2021-04-03 17:59:00 |
2021-04-03 17:59:00 | -1 | 0 | null |
hh | num_overlaps |
---|---|
2021-02-03 00:00:00+00 | 0 |
2021-02-03 01:00:00+00 | 0 |
2021-02-03 02:00:00+00 | 0 |
2021-02-03 03:00:00+00 | 0 |
2021-02-03 04:00:00+00 | 0 |
2021-02-03 05:00:00+00 | 0 |
2021-02-03 06:00:00+00 | 0 |
2021-02-03 07:00:00+00 | 0 |
2021-02-03 08:00:00+00 | 0 |
2021-02-03 09:00:00+00 | 1 |
2021-02-03 10:00:00+00 | 2 |
2021-02-03 11:00:00+00 | 2 |
2021-02-03 12:00:00+00 | 1 |
2021-02-03 13:00:00+00 | 1 |
2021-02-03 14:00:00+00 | 1 |
2021-02-03 15:00:00+00 | 1 |
2021-02-03 16:00:00+00 | 0 |
2021-02-03 17:00:00+00 | 0 |
2021-02-03 18:00:00+00 | 0 |
2021-02-03 19:00:00+00 | 0 |
2021-02-03 20:00:00+00 | 0 |
2021-02-03 21:00:00+00 | 0 |
2021-02-03 22:00:00+00 | 0 |
2021-02-03 23:00:00+00 | 0 |
2021-02-04 00:00:00+00 | 0 |
2021-02-04 01:00:00+00 | 0 |
2021-02-04 02:00:00+00 | 0 |
2021-02-04 03:00:00+00 | 0 |
2021-02-04 04:00:00+00 | 0 |
2021-02-04 05:00:00+00 | 0 |
2021-02-04 06:00:00+00 | 0 |
2021-02-04 07:00:00+00 | 0 |
2021-02-04 08:00:00+00 | 0 |
2021-02-04 09:00:00+00 | 0 |
2021-02-04 10:00:00+00 | 0 |
2021-02-04 11:00:00+00 | 0 |
2021-02-04 12:00:00+00 | 0 |
2021-02-04 13:00:00+00 | 1 |
2021-02-04 14:00:00+00 | 3 |
2021-02-04 15:00:00+00 | 3 |
2021-02-04 16:00:00+00 | 3 |
2021-02-04 17:00:00+00 | 3 |
2021-02-04 18:00:00+00 | 3 |
2021-02-04 19:00:00+00 | 3 |
2021-02-04 20:00:00+00 | 3 |
2021-02-04 21:00:00+00 | 3 |
2021-02-04 22:00:00+00 | 3 |
2021-02-04 23:00:00+00 | 3 |
2021-02-05 00:00:00+00 | 3 |