Oracle函数处于无效状态错误

Question

我有oracle功能

create or replace function payu_pool_wallet_report(sys_account_id in number) return sys_refcursor as
   p_recordset sys_refcursor;
begin
   open p_recordset for
      select status
            ,reconciliation
            ,count(*) as no_of_transactions
            ,sum(ybl_commission) as commission
            ,sum(merchant_payable) as merchant_payable
            ,sum(amount) as total_amount
        from fund_transfers
       where system_account_id = sys_account_id
         and neutralize = 0
       group by status
               ,reconciliation
       order by status         desc
               ,reconciliation desc;
   return p_recordset;
end;

在创建时工作正常。但是在一段时间或第二天之后，我开始将错误的“功能置于无效状态”