Re: Improve readability by using designated initializers when possible

On Tue, 27 Feb 2024 at 19:55, Jelte Fennema-Nio <postgres@jeltef.nl> wrote:
> On Tue, 27 Feb 2024 at 12:52, Jelte Fennema-Nio <postgres@jeltef.nl> wrote:
>> Attached is an updated patchset to also convert pg_enc2icu_tbl and
>> pg_enc2gettext_tbl. I converted pg_enc2gettext_tbl in a separate
>> commit, because it actually requires some codechanges too.
>
> Another small update to also make all arrays changed by this patch
> have a trailing comma (to avoid future diff noise).

I see the config_group_names[] needs null-terminated because of help_config,
however, I didn't find the reference in help_config.c.  Is this comment
outdated?  Here is a patch to remove the null-terminated.

diff --git a/src/backend/utils/misc/guc_tables.c b/src/backend/utils/misc/guc_tables.c
index 59904fd007..df849f73fc 100644
--- a/src/backend/utils/misc/guc_tables.c
+++ b/src/backend/utils/misc/guc_tables.c
@@ -715,11 +715,9 @@ const char *const config_group_names[] =
 	[PRESET_OPTIONS] = gettext_noop("Preset Options"),
 	[CUSTOM_OPTIONS] = gettext_noop("Customized Options"),
 	[DEVELOPER_OPTIONS] = gettext_noop("Developer Options"),
-	/* help_config wants this array to be null-terminated */
-	NULL
 };

-StaticAssertDecl(lengthof(config_group_names) == (DEVELOPER_OPTIONS + 2),
+StaticAssertDecl(lengthof(config_group_names) == (DEVELOPER_OPTIONS + 1),
 				 "array length mismatch");

 /*