Re: Timeline ID hexadecimal format

Sébastien Lardière <sebastien@lardiere.net>

From: Sébastien Lardière <sebastien@lardiere.net>
To: Peter Eisentraut <peter.eisentraut@enterprisedb.com>, pgsql-hackers@postgresql.org
Date: 2023-01-30T16:05:36Z
Lists: pgsql-hackers

Attachments

On 27/01/2023 15:55, Peter Eisentraut wrote:
> On 27.01.23 14:52, Sébastien Lardière wrote:
>> The attached patch proposes to change the format of timelineid from 
>> %u to %X.
>
> I think your complaint has merit.  But note that if we did a change 
> like this, then log files or reports from different versions would 
> have different meaning without a visual difference, which is kind of 
> what you complained about in the first place.  At least we should do 
> something like 0x%X.
>
Hi,

Here's the patch with the suggested format ; plus, I add some note in 
the documentation about recovery_target_timeline, because I don't get 
how strtoul(), with the special 0 base parameter can work without 0x 
prefix ; I suppose that nobody use it.

I also change pg_controldata and the usage of this output by pg_upgrade. 
I let internal usages unchanded : content of backup manifest and content 
of history file.

Should I open a commitfest entry, or is it too soon ?

regards,

-- 
Sébastien

Commits

  1. pg_waldump: Allow hexadecimal values for -t/--timeline option

  2. doc: Additional information about timeline ID hexadecimal format