role
The system role of a system field: a system-field filter target (SystemField by its wire name, e.g. tenant-id), or one of the model's times (EVENT_TIME, FIRST_EVENT_TIME); null for ordinary fields.
The system role of a system field: a system-field filter target (SystemField by its wire name, e.g. tenant-id), or one of the model's times (EVENT_TIME, FIRST_EVENT_TIME); null for ordinary fields.