SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function mapAdd (alias res) (children 1)
     ExpressionList (children 2)
      Function map (children 1)
       ExpressionList (children 4)
        Function toInt16 (children 1)
         ExpressionList (children 1)
          Literal UInt64_1
        Function toInt16 (children 1)
         ExpressionList (children 1)
          Literal UInt64_1
        Literal UInt64_2
        Literal UInt64_1
      Function map (children 1)
       ExpressionList (children 4)
        Function toInt16 (children 1)
         ExpressionList (children 1)
          Literal UInt64_1
        Function toInt16 (children 1)
         ExpressionList (children 1)
          Literal UInt64_1
        Literal UInt64_2
        Literal UInt64_1
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier res
