SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function length (children 1)
     ExpressionList (children 1)
      Function topK (children 2)
       ExpressionList (children 1)
        Function tuple (children 1)
         ExpressionList (children 2)
          Identifier number
          Literal \'\'
       ExpressionList (children 1)
        Literal UInt64_20
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function remote (children 1)
       ExpressionList (children 3)
        Literal \'127.{1,1}\'
        Function currentDatabase (children 1)
         ExpressionList
        Identifier data_01409