SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function mapSubtract (alias res) (children 1)
     ExpressionList (children 2)
      Function map (children 1)
       ExpressionList (children 2)
        Function toUInt8 (children 1)
         ExpressionList (children 1)
          Literal UInt64_3
        Function toInt32 (children 1)
         ExpressionList (children 1)
          Literal UInt64_1
      Function map (children 1)
       ExpressionList (children 4)
        Function toUInt8 (children 1)
         ExpressionList (children 1)
          Literal UInt64_1
        Function toInt32 (children 1)
         ExpressionList (children 1)
          Literal UInt64_2
        Literal UInt64_2
        Literal UInt64_2
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier res
