| From: | Stephen Frost <sfrost(at)snowman(dot)net> |
|---|---|
| To: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Craig Ringer <craig(dot)ringer(at)2ndquadrant(dot)com>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Andres Freund <andres(at)anarazel(dot)de> |
| Subject: | Re: Renaming of pg_xlog and pg_clog |
| Date: | 2016-10-14 11:35:23 |
| Message-ID: | 20161014113523.GZ13284@tamriel.snowman.net |
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| Lists: | pgsql-hackers |
* Peter Eisentraut (peter(dot)eisentraut(at)2ndquadrant(dot)com) wrote:
> On 10/12/16 11:22 AM, Tom Lane wrote:
> > The main problem we're trying to fix here is people thinking that
> > something with "log" in the name contains discardable data. Just
> > relocating the directory without renaming it won't improve that.
>
> I think it would help if we moved it to something like
> "internal/pg_xlog" and "internal/pg_clog". Keep the name but move it
> out of sight.
I disagree that this will materially help with the issue.
> We have a tool called pg_xlogdump in the standard installation. initdb
> has an option --xlogdir, pg_basebackup has --xlog and others. Renaming
> the xlog directory would make this all a bit confusing, unless we're
> prepared to rename the programs and options as well.
pg_xlogdump is not a user-facing tool, frankly, so I don't believe we
should be terribly concerned about either leaving it named as-is or
renaming it. I agree that we should consider adding alternative names
to the options for initdb and pg_basebackup.
Thanks!
Stephen
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