Re: Include WAL in base backup
Fujii Masao <masao.fujii@gmail.com>
From: Fujii Masao <masao.fujii@gmail.com>
To: Magnus Hagander <magnus@hagander.net>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Stephen Frost <sfrost@snowman.net>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2011-01-24T08:03:31Z
Lists: pgsql-hackers
On Mon, Jan 24, 2011 at 4:47 PM, Magnus Hagander <magnus@hagander.net> wrote: > On Mon, Jan 24, 2011 at 08:45, Fujii Masao <masao.fujii@gmail.com> wrote: >> On Fri, Jan 21, 2011 at 12:28 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote: >>> Magnus Hagander <magnus@hagander.net> writes: >>>>> - Why not initialize logid and logseg like so?: >>>>> >>>>> int logid = startptr.xlogid; >>>>> int logseg = startptr.xrecoff / XLogSegSize; >>>>> >>>>> Then use those in your elog? Seems cleaner to me. >>> >>>> Hmm. Yes. Agreed. >>> >>> Marginal complaint here: int is the wrong type, I'm pretty sure. >> >> And, we should use XLByteToPrevSeg here instead of just =, I think. > > Not XLByteToSeg? Checking... yeah, you are right. We should use XLByteToSeg since the REDO starting WAL record doesn't exist in the previous WAL segment when the REDO starting location is a boundary byte. Regards, -- Fujii Masao NIPPON TELEGRAPH AND TELEPHONE CORPORATION NTT Open Source Software Center