Re: description of CHECKPOINT command confusing
От | Josh Kupershmidt |
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Тема | Re: description of CHECKPOINT command confusing |
Дата | |
Msg-id | CAK3UJRFhurimntTp_xQeMuyZCXAJM=U8cH9zE+ZeUChqiDd7dQ@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: description of CHECKPOINT command confusing (Fujii Masao <masao.fujii@gmail.com>) |
Ответы |
Re: description of CHECKPOINT command confusing
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Список | pgsql-docs |
On Wed, Oct 12, 2011 at 1:14 AM, Fujii Masao <masao.fujii@gmail.com> wrote: > On Wed, Oct 12, 2011 at 12:02 PM, Josh Kupershmidt <schmiddy@gmail.com> wrote: > It's for preventing pg_start_backup() from taking lots of time? If so, > you're right in 8.3 and before. In 8.4 and later, instead, you can specify > whether pg_start_backup() performs smoothed checkpoint or immediate > one, by using the second argument of pg_start_backup(). Neat, I hadn't seen that change to pg_start_backup(). > I'm not sure if there are other use cases during normal operation. If there's no real use-case for the command, I think the existing text of "not intended for use during normal operation" is fine. > It's helpful to link to that. What a "restartpoint" is explained in also > http://www.postgresql.org/docs/current/static/wal-configuration.html I wonder if it'd be helpful to break up that page into sub-sections, it is quite a large single section now. That might make it easier to link into that page for explaining restartpoint. Slightly updated patch attached. Josh
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