columns format version: 1
16 columns:
`l_orderkey` Int64
`l_partkey` Int64
`l_suppkey` Int64
`l_linenumber` Int64
`l_quantity` Float64
`l_extendedprice` Float64
`l_discount` Float64
`l_tax` Float64
`l_returnflag` String
`l_linestatus` String
`l_shipdate` Date
`l_commitdate` Date
`l_receiptdate` Date
`l_shipinstruct` String
`l_shipmode` String
`l_comment` String
