SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function sum (children 1)
     ExpressionList (children 1)
      Function multiplyDecimal (children 1)
       ExpressionList (children 2)
        Function toDecimal64 (children 1)
         ExpressionList (children 2)
          Identifier number
          Literal UInt64_1
        Function toDecimal64 (children 1)
         ExpressionList (children 2)
          Identifier number
          Literal UInt64_5
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_1000