Re: proposal: possibility to read dumped table's name from file

On 2021-Jul-13, Tomas Vondra wrote:

> I'm not going to fight against some sort of versioning, but I think keeping
> the scope as narrow as possible would make it unnecessary. That is, let's
> stick to the original goal to allow passing filtering rules that would not
> fit on the command-line, and maybe let's make it a bit more flexible to
> support other object types etc.
>
> IMHO the filtering rules are simple enough to not really need elaborate
> versioning, and if a more advanced rule is proposed in the future it can be
> supported in the existing format (extra field, ...).

I don't understand why is versioning needed for this file. Surely we
can just define some line-based grammar that's accepted by the current
pg_dump[1] and that would satisfy the current need as well as allowing
for extending the grammar in the future; even JSON or Windows-INI format
(ugh?) if that's necessary to tailor the output file in some other way
not covered by that.

[1] your proposal of "[+-] OBJTYPE OBJIDENT" plus empty lines allowed
plus lines starting with # are comments, seems plenty. Any line not
following that format would cause an error to be thrown.

--
Álvaro Herrera PostgreSQL Developer — https://www.EnterpriseDB.com/