left_col,right_col,sample_type
BillingKey,Billing_id,P
BillingKey,BillingAddress,P
BillingKey,BillingCity,P
BillingKey,BillingState,P
BillingKey,BillingCountry,P
BillingKey,BillingPostalCode,P
BillingKey,RowIsCurrent,P
BillingKey,RowStartDate,P
BillingKey,RowEndDate,P
BillingKey,Total,P
TrackKey,InvoiceDate,N
TrackKey,CustomerKey,N
TrackKey,EmployeeKey,N
TrackKey,BillingState,N
TrackKey,BillingPostalCode,N
TrackKey,Total,N
InvoiceDate,CustomerKey,N
InvoiceDate,EmployeeKey,N
InvoiceDate,unit_price,N
InvoiceDate,total,N
InvoiceDate,Billing_id,N
InvoiceDate,BillingAddress,N
InvoiceDate,BillingCity,N
InvoiceDate,BillingState,N
InvoiceDate,BillingCountry,N
InvoiceDate,BillingPostalCode,N
InvoiceDate,Total,N
BillingKey,unit_price,N
BillingKey,total,N
Billing_id,unit_price,N