SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function reverse (children 1)
     ExpressionList (children 1)
      Function tuple (children 1)
       ExpressionList (children 3)
        Literal UInt64_1
        Literal \'Hello\'
        Literal Array_[UInt64_2, UInt64_3]
