SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function sum (children 1)
     ExpressionList (children 1)
      Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function remote (children 1)
       ExpressionList (children 3)
        Literal \'127.0.0.4\'
        Function currentDatabase (children 1)
         ExpressionList
        Function viewExplain (children 1)
         ExpressionList (children 3)
          Literal \'EXPLAIN PIPELINE\'
          Literal \'graph = 1\'
          Subquery (children 1)
           SelectWithUnionQuery (children 1)
            ExpressionList (children 1)
             SelectQuery (children 2)
              ExpressionList (children 1)
               Asterisk
              TablesInSelectQuery (children 1)
               TablesInSelectQueryElement (children 1)
                TableExpression (children 1)
                 Function remote (children 1)
                  ExpressionList (children 3)
                   Literal \'127.0.0.4\'
                   Identifier system
                   Identifier one
