SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function CAST (alias d) (children 1)
     ExpressionList (children 2)
      Literal \'Hello\'
      Literal \'Dynamic(max_types = 0)\'
 Identifier PrettyJSONEachRow
