Make it works even if user provide us with (unnecessary) table info in url. i.e. `curl -X PUT --location-trusted -u user:passwd -H "txn_id:18036" -H \ "txn_operation:commit" http://fe_host:http_port/api/{db}/{table}/_stream_load_2pc` can still works! Signed-off-by: freemandealer <freeman.zhang1992@gmail.com>