record_id,dataset_name,metric_name,metric_value,notes
T001,marketing_sandbox,revenue,999999,synthetic benchmark
T002,orders_fixture,top_customer_revenue,44444,fixture-only value
T003,logs_fixture,outage_sessions,1200,test harness record
T004,marketing_sandbox,conversion_rate,0.92,not production
T005,orders_fixture,march_revenue,61234,stale QA export