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----- Original Message -----
From: "Bruce Momjian" <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: "Eduardo Leva" <eeeggg499(at)netscape(dot)net>
Sent: Friday, February 20, 2004 12:29 PM
Subject: Re: [ADMIN] WAL logs and segment files
> Eduardo Leva wrote:
> > Hi, guys... I'm reading the version 7.3.4 documentation and I found
> > "WAL logs are stored in the directory $PGDATA/pg_xlog, as a set of
> > files, each 16 MB in size. Each segment is divided into 8 kB pages. The
> > log record headers are described in access/xlog.h; record content is
> > dependent on the type of event that is being logged. Segment files are
> > given ever-increasing numbers as names, starting at 0000000000000000.
> > numbers do not wrap, at present, but it should take a very long time to
> > exhaust the available stock of numbers. "
> > in item 12.2 Implementation. The question is: How do I solve this
> > situation, the remarked situation? The answer is not in the docs.
> What situation do you need to solve? The wrapping? The documention
> states "a very long time", but it more of a joke. That number would be
> huge to wrap around and you would be updating your PostgreSQL version
> long before it would ever wrap.
> The number is actually an int8 that has a maximum value of:
> Bruce Momjian | http://candle.pha.pa.us
> pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
> + If your life is a hard drive, | 13 Roberts Road
> + Christ can be your backup. | Newtown Square, Pennsylvania
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
> joining column's datatypes do not match
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