original_column_name,column_name,column_description,data_format,value_description
c_custkey,customer key,unique id number identifying the customer,integer,
c_mktsegment,customer market segment,the segment of the customer,text,
c_nationkey,customer nation key,the nation key number of the customer,integer,
c_name,customer name,name of the customer,text,
c_address,customer address,address of the customer,text,
c_phone,customer phone,phone of the customer,text,
c_acctbal,customer account balance,account balance,real,if c_acctbal < 0: this account is in debt
c_comment,customer comment,comment of the customer,text,