SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function divide (alias r) (children 1)
     ExpressionList (children 2)
      Function multiply (children 1)
       ExpressionList (children 2)
        Function sum (children 1)
         ExpressionList (children 1)
          Identifier a
        Literal UInt64_100
      Function sum (children 1)
       ExpressionList (children 1)
        Function sum (children 1)
         ExpressionList (children 1)
          Identifier a
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias t) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 3)
         SelectQuery (children 1)
          ExpressionList (children 2)
           Literal UInt64_1 (alias a)
           Literal UInt64_2 (alias b)
         SelectQuery (children 1)
          ExpressionList (children 2)
           Literal UInt64_3 (alias a)
           Literal UInt64_4 (alias b)
         SelectQuery (children 1)
          ExpressionList (children 2)
           Literal UInt64_5 (alias a)
           Literal UInt64_2 (alias b)
   ExpressionList (children 1)
    Identifier b
