log_line        log_time         log_level log_msg_format log_msg_values log_part log_idle_msecs log_mark log_comment log_tags log_annotations log_filters log_format 
       0 2009-07-20 22:59:26.000 info                     null             <NULL>              0        0      <NULL>   <NULL>          <NULL>      <NULL> access_log 
       1 2009-07-20 22:59:29.000 error                    null             <NULL>           3000        0      <NULL>   <NULL>          <NULL>      <NULL> access_log 
       2 2009-07-20 22:59:29.000 info                     null             <NULL>              0        0      <NULL>   <NULL>          <NULL>      <NULL> access_log 
       3 2013-02-15 06:00:31.000 error                    null             <NULL>   112777262000        0      <NULL>   <NULL>          <NULL>      <NULL> access_log