Re: XLog changes for 9.3

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Simon Riggs <simon(at)2ndQuadrant(dot)com>
Cc: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: XLog changes for 9.3
Date: 2012-06-07 19:08:12
Message-ID: 11524.1339096092@sss.pgh.pa.us
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Simon Riggs <simon(at)2ndQuadrant(dot)com> writes:
> On 7 June 2012 19:52, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> This seems like nonsense to me. How many external scripts are likely to
>> know that we skip the FF page? There might be some, but not many.

> If that is the only change in filenames, then all is forgiven.

Oh, now I see what you're on about. Yes, I agree that we should
maintain the same formatting of WAL segment file names, even though
it will be rather artificial in the 64-bit-arithmetic world. The
only externally visible change should be the creation of FF-numbered
files where formerly those were skipped.

regards, tom lane

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