Re: pg_verify_checksums -r option

On Fri, 24 Aug 2018 18:01:09 +0200
Peter Eisentraut <peter.eisentraut@2ndquadrant.com> wrote:

> I'm curious about this option:
> 
>   -r RELFILENODE         check only relation with specified relfilenode
> 
> but there is no facility to specify a database.
> 
> Also, referring to the relfilenode of a mapped relation seems a bit
> inaccurate.
> 
> Maybe reframing this in terms of the file name of the file you want
> checked would be better?

If we specified 1234 to -r option, pg_verify_shceksums checks not only 1234
but also 1234_vm, 1234_fsm, and 1234.1, 1234.2, ... and so on, so I think
it makes senses to allow to specify a relfilenode instead of a file name.

I think it is reasonable to add a option to specify a database, although
I don't know which character is good because both -d and -D are already used....

Regards,
-- 
Yugo Nagata <nagata@sraoss.co.jp>