SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 3)
    Function toDecimal128 (alias x) (children 1)
     ExpressionList (children 2)
      Literal \'42.42\'
      Literal UInt64_4
    Function toDecimal32 (alias y) (children 1)
     ExpressionList (children 2)
      Function cbrt (children 1)
       ExpressionList (children 1)
        Identifier x
      Literal UInt64_4
    Function multiply (children 1)
     ExpressionList (children 2)
      Function multiply (children 1)
       ExpressionList (children 2)
        Function toDecimal64 (children 1)
         ExpressionList (children 2)
          Identifier y
          Literal UInt64_4
        Identifier y
      Identifier y