designated initializers

(Coming from https://postgr.es/m/20220809193616.5uucf33piwdxn452@alvherre.pgsql )

On 2022-Aug-09, Alvaro Herrera wrote:

> On 2022-Aug-09, Andres Freund wrote:
> 
> > Mildly wondering whether we ought to use designated initializers instead,
> > given we're whacking it around already. Too easy to get the order wrong when
> > adding new members, and we might want to have optional callbacks too.
> 
> Strong +1.  It makes code much easier to navigate (see XmlTableRoutine
> and compare with heapam_methods, for example).

For example, I propose the attached.

-- 
Álvaro Herrera               48°01'N 7°57'E  —  https://www.EnterpriseDB.com/
"El que vive para el futuro es un iluso, y el que vive para el pasado,
un imbécil" (Luis Adler, "Los tripulantes de la noche")