SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function sumMerge (children 1)
     ExpressionList (children 1)
      Function multiply (children 1)
       ExpressionList (children 2)
        Identifier x
        Literal UInt64_5
    Function sumMerge (children 1)
     ExpressionList (children 1)
      Identifier x
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Function sumState (alias x) (children 1)
            ExpressionList (children 1)
             Identifier b
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier mult_aggregation
