Re: [PATCHES] Implementing RESET CONNECTION ...

Поиск
Список
Период
Сортировка
От Bruce Momjian
Тема Re: [PATCHES] Implementing RESET CONNECTION ...
Дата
Msg-id 200506050204.j5524vM16303@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: [PATCHES] Implementing RESET CONNECTION ...  (Oliver Jowett <oliver@opencloud.com>)
Ответы Re: [PATCHES] Implementing RESET CONNECTION ...  (Christopher Kings-Lynne <chriskl@familyhealth.com.au>)
Список pgsql-hackers
What did we decide on RESET CONNECTION.  Do we want an SQL command or
something only the protocol can do?

---------------------------------------------------------------------------

Oliver Jowett wrote:
> (cc'ing -hackers)
>
> Karel Zak wrote:
>
> > I think command status is common and nice feedback for client. I think
> > it's more simple change something in JDBC than change protocol that is
> > shared between more tools.
>
> There is a bit of a queue of changes that would be nice to have but
> require a protocol version change. If we're going to change the protocol
> for any of those we might as well handle RESET CONNECTION cleanly too.
>
> > We need some common way how detect on client what's happen on server --
> > a way that doesn't mean change protocol always when we add some
> > feature/command to backend. The command status is possible use for this.
>
> Command status only works if commands are directly executed. If you can
> execute the command indirectly, e.g. via a PL, then you'll miss the
> notification. Making RESET a top-level-only command isn't unreasonable,
> but using command status won't work as a general approach for notifying
> clients.
>
> We have a mechanism for GUC changes that uses a separate message
> (ParameterStatus). Perhaps that should be generalized to report
> different sorts of connection-related changes.
>
> -O
>
> ---------------------------(end of broadcast)---------------------------
> TIP 7: don't forget to increase your free space map settings
>

--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

В списке pgsql-hackers по дате отправления:

Предыдущее
От: Bruce Momjian
Дата:
Сообщение: Re: Solution proposal for TODO item "Clients: sequences"
Следующее
От: Bruce Momjian
Дата:
Сообщение: Re: [PATCHES] Bgwriter behavior