Horton

Re: Renaming of pg_xlog and pg_clog

Euler Taveira <euler@timbira.com.br>

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From: Euler Taveira <euler@timbira.com.br>
To: Devrim Gündüz <devrim@gunduz.org>, Michael Paquier <michael.paquier@gmail.com>, Simon Riggs <simon@2ndquadrant.com>
Cc: PostgreSQL mailing lists <pgsql-hackers@postgresql.org>
Date: 2016-08-26T14:36:43Z
Lists: pgsql-hackers 
On 26-08-2016 09:25, Devrim Gündüz wrote:
> On Fri, 2016-08-26 at 21:12 +0900, Michael Paquier wrote:
>> In short, with the current names, sometimes users think that pg_xlog
>> and pg_clog are just logs. And so it is fine to delete them to free up
>> space, corrupting their cluster, because they are just *logs*.
> 
> ...and we also have "pg_logical", that includes a "log" keyword already...
> 
"clog" and "xlog" is almost "log"; "logical" is not. I don't imagine
people confusing "logical" meaning "log".


-- 
   Euler Taveira                   Timbira - http://www.timbira.com.br/
   PostgreSQL: Consultoria, Desenvolvimento, Suporte 24x7 e Treinamento

Commits

  1. Rename "pg_clog" directory to "pg_xact".

  2. Improve error reporting in pg_upgrade's file copying/linking/rewriting.