SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function round (children 1)
     ExpressionList (children 2)
      Function multiply (children 1)
       ExpressionList (children 2)
        Function toDecimal64 (children 1)
         ExpressionList (children 2)
          Literal Float64_0.5
          Literal UInt64_2
        Literal Float64_20.33
      Literal UInt64_6