public inbox for [email protected]
help / color / mirror / Atom feedTerminology gaps around WAL
2+ messages / 2 participants
[nested] [flat]
* Terminology gaps around WAL
@ 2026-06-11 22:14 Jeff Davis <[email protected]>
2026-06-12 07:24 ` Re: Terminology gaps around WAL Laurenz Albe <[email protected]>
0 siblings, 1 reply; 2+ messages in thread
From: Jeff Davis @ 2026-06-11 22:14 UTC (permalink / raw)
To: pgsql-docs
I sometimes struggle to come up with the right term for the following
concepts, which come up a lot:
* The abstract set of WAL records that all originate from a single
initdb and share a system identifier; including all timelines, and
including old records that may have been deleted a long time ago.
* The "stuff" around that specific set of WAL records, such as running
instances, warm standbys, PITR'd instances, inactive instances, base
backups, and WAL archives.
"Database cluster" doesn't fit either of these. The docs define it as
"a collection of databases that is managed by a single instance of a
running database server." [1]
Do others already have good terms for these concepts? Is it worth
trying to invent and document some?
Regards,
Jeff Davis
[1] https://www.postgresql.org/docs/current/creating-cluster.html
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: Terminology gaps around WAL
2026-06-11 22:14 Terminology gaps around WAL Jeff Davis <[email protected]>
@ 2026-06-12 07:24 ` Laurenz Albe <[email protected]>
0 siblings, 0 replies; 2+ messages in thread
From: Laurenz Albe @ 2026-06-12 07:24 UTC (permalink / raw)
To: Jeff Davis <[email protected]>; pgsql-docs
On Thu, 2026-06-11 at 15:14 -0700, Jeff Davis wrote:
> I sometimes struggle to come up with the right term for the following
> concepts, which come up a lot:
>
> * The abstract set of WAL records that all originate from a single
> initdb and share a system identifier; including all timelines, and
> including old records that may have been deleted a long time ago.
>
> * The "stuff" around that specific set of WAL records, such as running
> instances, warm standbys, PITR'd instances, inactive instances, base
> backups, and WAL archives.
>
>
> "Database cluster" doesn't fit either of these. The docs define it as
> "a collection of databases that is managed by a single instance of a
> running database server." [1]
>
> Do others already have good terms for these concepts? Is it worth
> trying to invent and document some?
>
> [1] https://www.postgresql.org/docs/current/creating-cluster.html
"Multiverse" pops into my mind.
Yours,
Laurenz Albe
^ permalink raw reply [nested|flat] 2+ messages in thread
end of thread, other threads:[~2026-06-12 07:24 UTC | newest]
Thread overview: 2+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2026-06-11 22:14 Terminology gaps around WAL Jeff Davis <[email protected]>
2026-06-12 07:24 ` Laurenz Albe <[email protected]>
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox