left_col,right_col,sample_type
Date for relationship,Date,P
Date for relationship,Year,P
Date for relationship,Month,P
Date for relationship,Quarter,P
Date Created,Case Number,N
Date Created,Disposition ID,N
Date Created,Product,N
Date Created,Support ID,N
Date Created,Severity,N
Date Created,Subject,N
Date,Disposition ID,N
Date,Severity,N