| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | 刘剑 <liujian(at)raintai(dot)com> |
| Cc: | pgsql-bugs <pgsql-bugs(at)postgresql(dot)org> |
| Subject: | Re: help:how to rollback postgresql to several minutes ago |
| Date: | 2016-04-14 12:23:31 |
| Message-ID: | CAB7nPqSE0qU3NLeoVB8OdmEpndgFdMYLysr5jQ=JDT1Js9S=0w@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Thu, Apr 14, 2016 at 7:06 PM, 刘剑 <liujian(at)raintai(dot)com> wrote:
> I had written an update sql without where condition to my table, then
> updated whole table.
> So how can i rollback this?
You need to roll in a backup I am afraid, and you should always have
some. Postgres has no way to replay back directly WAL records, it can
only forward replay. In such circumstances standby nodes with a delay
when applying WAL are useful.
--
Michael
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