array(1) {
  [0]=>
  string(284) "SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'GROUP BY load_id, driver_1_id
        
        UNION ALL 
    
        SELECT...' at line 9"
}