pt load data

copy table (device_id,src_ip,src_transfer_ip,dst_ip,src_port,dst_port,transfer_port,type,ip_version,protocol_id,rule_id) from '/data01/pg92/t_log_nat1.dmp';


copy (select device_id,src_ip,src_transfer_ip,dst_ip,src_port,dst_port,transfer_port,type,ip_version,protocol_id,rule_id from t_log_nat
where id in
        (select floor(random() * (max_id - min_id))::int
                + min_id
           from generate_series(1,100000),
                (select max(id) as max_id,
                        min(id) as min_id
                   from t_log_nat) s1
        )) to '/data01/pg92/t_log_nat1.dmp';