Most usage columns of table based on system.query_log
| system.monitoring_events.kind | 2 |
| system.monitoring_events.event_time | 2 |
| system.monitoring_events.actor | 1 |
| system.monitoring_events.extra | 1 |
| system.monitoring_events.data | 1 |
| system.monitoring_events.event_date | 1 |
