columns format version: 1
9 columns:
`trace_id` UUID
`span_id` UInt64
`parent_span_id` UInt64
`operation_name` LowCardinality(String)
`kind` Enum8('INTERNAL' = 0, 'SERVER' = 1, 'CLIENT' = 2, 'PRODUCER' = 3, 'CONSUMER' = 4)
`start_time_us` UInt64
`finish_time_us` UInt64
`finish_date` Date
`attribute` Map(LowCardinality(String), String)