Re: Listen / Notify rewrite

Поиск
Список
Период
Сортировка
От Merlin Moncure
Тема Re: Listen / Notify rewrite
Дата
Msg-id b42b73150911111828n18cdb268i2aca9d971d3a0394@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Listen / Notify rewrite  ("A.M." <agentm@themactionfaction.com>)
Ответы Re: Listen / Notify rewrite
Список pgsql-hackers
On Wed, Nov 11, 2009 at 5:48 PM, A.M. <agentm@themactionfaction.com> wrote:
> At least with this new payload, I can set the payload to the transaction ID
> and be certain that all the notifications I sent are processed (and in order
> even!) but could you explain why the coalescing is still necessary?

Christmas comes early this year! :-).

three reasons:
*) it works that way now...a lot of people use this feature for all
kinds of subtle things and the behavior chould change as little as
possible
*) legacy issues aside, I think it's generally better behavior (how
many times do you need to be tapped on the shoulder?)
*) since you can trivially differentiate it (using xid, sequence,
etc), what's the fuss?

merlin


В списке pgsql-hackers по дате отправления:

Предыдущее
От: Andrew Chernow
Дата:
Сообщение: Re: Listen / Notify rewrite
Следующее
От: Fujii Masao
Дата:
Сообщение: write ahead logging in standby (streaming replication)