Re: CREATE TABLE, load and freezing
От | Pavan Deolasee |
---|---|
Тема | Re: CREATE TABLE, load and freezing |
Дата | |
Msg-id | 2e78013d0802280216of79c5fcw9a04fbedf14b2e1d@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: CREATE TABLE, load and freezing (ITAGAKI Takahiro <itagaki.takahiro@oss.ntt.co.jp>) |
Список | pgsql-hackers |
On Thu, Feb 28, 2008 at 3:25 PM, ITAGAKI Takahiro <itagaki.takahiro@oss.ntt.co.jp> wrote: > > > Sounds cool. I recommended users to do VACUUM FREEZE just after initial > loading, but we can avoid it with your method. > Yeah, and the additional step of VACUUM FREEZE adds up to the restore time. > > To make things worse, the freezing day comes at once because the first restore > is done in a single or near transactions; The wraparound timings of many > tables are aligned at the same time. Freezing copy will be the solution. > If we can start with a freezed table and even if the table is subsequently updated, hopefully DSM (or something of that sort) will help us reduce the vacuum freeze time whenever its required. Thanks, Pavan -- Pavan Deolasee EnterpriseDB http://www.enterprisedb.com
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