Re: Improve readability by using designated initializers when possible

jian he <jian.universality@gmail.com>

From: jian he <jian.universality@gmail.com>
To: Peter Eisentraut <peter@eisentraut.org>
Cc: Michael Paquier <michael@paquier.xyz>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Japin Li <japinli@hotmail.com>, Jelte Fennema-Nio <postgres@jeltef.nl>, Jeff Davis <pgsql@j-davis.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>, pgsql-hackers@lists.postgresql.org
Date: 2024-03-18T10:01:20Z
Lists: pgsql-hackers
On Mon, Mar 18, 2024 at 3:09 PM Peter Eisentraut <peter@eisentraut.org> wrote:
>
> On 14.03.24 01:26, Michael Paquier wrote:
> > -EventTriggerSupportsObjectClass(ObjectClass objclass)
> > +EventTriggerSupportsObject(const ObjectAddress *object)
> >
> > The shortcut introduced here is interesting, but it is inconsistent.
> > HEAD treats OCLASS_SUBSCRIPTION as something supported by event
> > triggers, but as pg_subscription is a shared catalog it would be
> > discarded with your change.  Subscriptions are marked as supported in
> > the event trigger table:
> > https://www.postgresql.org/docs/devel/event-trigger-matrix.html
>
> Ah, good catch.  Subscriptions are a little special there.  Here is a
> new patch that keeps the switch/case arrangement in that function.  That
> also makes it easier to keep the two EventTriggerSupports... functions
> aligned.  Also added a note about subscriptions and a reference to the
> documentation.

select relname from pg_class where relisshared and relkind = 'r';
        relname
-----------------------
 pg_authid
 pg_subscription
 pg_database
 pg_db_role_setting
 pg_tablespace
 pg_auth_members
 pg_shdepend
 pg_shdescription
 pg_replication_origin
 pg_shseclabel
 pg_parameter_acl
(11 rows)

EventTriggerSupportsObject should return false for the following:
SharedSecLabelRelationId
SharedDescriptionRelationId
DbRoleSettingRelationId
SharedDependRelationId

but I am not sure ReplicationOriginRelationId.



Commits

  1. Remove ObjectClass type

  2. Simplify pg_enc2gettext_tbl[] with C99-designated initializer syntax

  3. Use C99-designated initializer syntax for arrays related to encodings

  4. Remove last NULL element in config_group_names[]

  5. Use C99-designated initializer syntax for more arrays

  6. Remove unnecessary array object_classes[] in dependency.c

  7. Add trailing commas to enum definitions