SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function pow (alias four) (children 1)
     ExpressionList (children 2)
      Literal NULL
      Literal UInt64_256
   ExpressionList (children 1)
    Literal NULL (alias two)
   ExpressionList (children 1)
    ExpressionList (children 1)
     Function pow (children 1)
      ExpressionList (children 2)
       Identifier two
       Literal UInt64_65536
