SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function sin (children 1)
       ExpressionList (children 1)
        Function divide (children 1)
         ExpressionList (children 2)
          Function pi (children 1)
           ExpressionList
          Literal UInt64_4
      Function divide (children 1)
       ExpressionList (children 2)
        Literal UInt64_1
        Function sqrt (children 1)
         ExpressionList (children 1)
          Literal UInt64_2