Re: Standardize LSN-based filename

Japin Li <japinli@hotmail.com>

From: Japin Li <japinli@hotmail.com>
To: Fujii Masao <masao.fujii@gmail.com>
Cc: pgsql-hackers@lists.postgresql.org
Date: 2025-08-22T01:29:20Z
Lists: pgsql-hackers
On Thu, 21 Aug 2025 at 15:52, Fujii Masao <masao.fujii@gmail.com> wrote:
> On Wed, Aug 20, 2025 at 10:37 AM Japin Li <japinli@hotmail.com> wrote:
>> Yeah.  It's for both consistency and for proper file sorting.
>>
>> Zero-padding ensures that when a file system or tool sorts the snapshot files
>> alphabetically, the order is also chronological. For example, without
>> zero-padding, 2-1.snap would come before 10-1.snap, which is incorrect.
>
> I understand this situation can occur. Does this actually cause any real issues?
No.

> If not, and if no other programs depend on file name ordering, then the current
> naming should be fine?

Yeah! I don't insist on implementing this now; I'm simply documenting the
potential issue.

-- 
Regards,
Japin Li
ChengDu WenWu Information Technology Co., Ltd.