Re: why -Fdance archive format option works with ./pg_restore but not with ./pg_dump?

On 2025-01-24 Fr 10:24 AM, Tom Lane wrote:
> Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
>> I don't think we need a new file for this. pg_backup_utils.c is already
>> there for routines common to pg_restore and pg_dump.
> I'm not even on board with having a new function, because I doubt
> we should try to share this code in the first place. Who's to
> say that pg_dump and pg_restore must support exactly the same list
> of formats? For example, in the future we might decide that some
> format is obsolete and desupport it in pg_dump, while continuing
> to allow it for awhile in pg_restore for compatibility reasons.
> A closer-to-home possibility is that the work to allow non-text
> output from pg_dumpall will result in a format that pg_restore
> can read but pg_dump (by itself) doesn't write.
>
> So I'd just scrap pg_restore's parsing logic for this and replace it
> in-place. To the extent that that's copying and pasting stuff, fine.
> It's not like there's no other duplicativeness in their switch-parsing
> logic.
>
>

Fair point. Agreed.

cheers

andrew

--
Andrew Dunstan
EDB: https://www.enterprisedb.com