SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function nothingUInt64 (alias n) (children 1)
     ExpressionList (children 1)
      Literal NULL
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier n
