SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function multiply (alias x) (children 1)
     ExpressionList (children 2)
      Function toDecimal32 (children 1)
       ExpressionList (children 2)
        Literal UInt64_1
        Literal UInt64_2
      Function toDecimal128 (children 1)
       ExpressionList (children 2)
        Literal UInt64_1
        Literal UInt64_3
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier x