SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function CAST (alias my_literal) (children 1)
     ExpressionList (children 2)
      Literal \'1\'
      Literal \'Nullable(UInt64)\'
   ExpressionList (children 1)
    Function plus (children 1)
     ExpressionList (children 2)
      Function sum (children 1)
       ExpressionList (children 1)
        Identifier number
      Function multiply (children 1)
       ExpressionList (children 2)
        Identifier my_literal
        Function count (children 1)
         ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_0
