| From: | "Bossart, Nathan" <bossartn(at)amazon(dot)com> |
|---|---|
| To: | Magnus Hagander <magnus(at)hagander(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Vik Fearing <vik(at)postgresfriends(dot)org>, Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Catalog version access |
| Date: | 2021-08-16 18:12:54 |
| Message-ID: | 58A2BF44-855D-466F-91CC-8355AF581707@amazon.com |
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| Lists: | pgsql-hackers |
On 4/8/21, 2:58 AM, "Magnus Hagander" <magnus(at)hagander(dot)net> wrote:
> Another option could be to provide a switch to the postmaster binary.
> Using pg_config as originally suggested is risky because you might
> pick up the wrong postmaster, but if you put it on the actual
> postmaster binary you certainly know which one you're on... As this is
> something that's primarily of interest to developers, it's also a bit
> lower weight than having a "heavy" solution like an entire mode for
> pg_ctl.
I was looking at the --check switch for the postgres binary recently
[0], and this sounds like something that might fit in nicely there.
In the attached patch, --check will also check the control file if one
exists.
Nathan
[0] https://postgr.es/m/0545F7B3-70C0-4DE8-8C85-EAFE6113B7EE%40amazon.com
| Attachment | Content-Type | Size |
|---|---|---|
| v1-0001-Check-control-file-in-check-mode.patch | application/octet-stream | 1.3 KB |
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