Re: Renaming of pg_xlog and pg_clog

On 2016-08-26 11:53:21 -0400, Peter Eisentraut wrote:
> On 8/25/16 10:39 PM, Michael Paquier wrote:
> > I am relaunching $subject as 10 development will begin soon. As far as
> > I know, there is agreement that we can do something here. Among the
> > different proposals I have found:
> > - pg_clog renamed to pg_commit_status, pg_xact or pg_commit
> > - pg_xlog renamed to pg_xjournal, pg_wal or pg_journal
>
> If we're going to do some renaming, then I suggest we do a
> mini-file-system structure under $PGDATA, like
>
> $PGDATA/etc
> $PGDATA/log
> $PGDATA/run (lock files etc.)
> $PGDATA/tmp
> $PGDATA/var
>
> The names of all the things under "var" could still be refined, but it's
> much less likely that users will confuse data with configuration or
> plain logs under that scheme.

Splitting of ephemeral data seems to have a benefit, the rest seems more
like rather noisy busywork to me.