SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Identifier message
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 5)
          ExpressionList (children 2)
           Identifier event_time_microseconds
           Identifier message
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.text_log
          Function and (children 1)
           ExpressionList (children 2)
            Function equals (children 1)
             ExpressionList (children 2)
              Identifier logger_name
              Literal \'optimizeDirectReadFromTextIndex\'
            Function startsWith (children 1)
             ExpressionList (children 2)
              Identifier message
              Literal \'Added:\'
          ExpressionList (children 1)
           OrderByElement (children 1)
            Identifier event_time_microseconds
          Literal UInt64_8
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier event_time_microseconds
