Re: [PATCH] Patch to compute Max LSN of Data Pages - Mailing list pgsql-hackers

From Robert Haas
Subject Re: [PATCH] Patch to compute Max LSN of Data Pages
Date
Msg-id CA+Tgmoa+sfiKCkAz64C1ANgj3yeQzGkcULx+2=p5V-YT8eP_MA@mail.gmail.com
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In response to Re: [PATCH] Patch to compute Max LSN of Data Pages  (Fujii Masao <masao.fujii@gmail.com>)
Responses Re: [PATCH] Patch to compute Max LSN of Data Pages  (Fujii Masao <masao.fujii@gmail.com>)
List pgsql-hackers
On Tue, Nov 13, 2012 at 11:46 AM, Fujii Masao <masao.fujii@gmail.com> wrote:
> Without this utility, it's difficult to calculate the maximum LSN of
> data page, so
> basically we needed to take a backup when starting the standby. In the future,
> thanks to this utility, we can calculate the maximum LSN, and can skip a backup
> if that LSN is less than the master (i.e., last applied LSN, IOW,
> timeline switch LSN).

Doesn't the minimum recovery point give us that?

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



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