SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function CAST (alias v) (children 1)
     ExpressionList (children 2)
      Function toIPv4 (children 1)
       ExpressionList (children 1)
        Literal \'127.0.0.1\'
      Literal \'String\'
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier v
