Online/history/same-input parity: True
Parity after changing the arrival rule: False
at_age_limit: status=fresh; value=1; age=120
past_age_limit: status=stale; value=None; age=121
old_value_after_recent_write: status=stale; value=None; age=180
before_publication: status=unavailable; value=None; age=60
future_online_row: status=unavailable; value=None; age=-180
missing: status=missing; value=None; age=None
Age is measured from the feature cutoff; rejected reads withhold the value.