Re: Generate GUC tables from .dat file

> On 28 Aug 2025, at 08:53, Peter Eisentraut <peter(at)eisentraut(dot)org> wrote:

> I addressed all those, and did another cleanup pass over the script. (The formatting is from pgperltidy.)

A tiny nitpick is that all the other generator scripts (that I looked at) in
the tree use GetOptions() with named parameter rather than dereference ARGV
directly:

+my $input_fname = $ARGV[0];
+my $output_fname = $ARGV[1];

Also, I would have directed the reader to guc_parameters.dat in the below
comment since that's the canonical copy of the default value, but it's a
personal preference as it can just as easily be argued for keeping guc_tables.c

/*
* We may not yet know where PGSHAREDIR is (in particular this is true in
* an EXEC_BACKEND subprocess). So use "GMT", which pg_tzset forces to be
* interpreted without reference to the filesystem. This corresponds to
* the bootstrap default for these variables in guc_tables.c, although in
* principle it could be different.
*/

Apart from those small remarks, +1 on this patch. For future work, once this
has landed, it could be neat to add formatting checks to ensure long/short_desc
end with proper punctuation etc.

--
Daniel Gustafsson