Re: Property graph: fix error handling when dropping non-existent label property

On 2026-04-29, Chao Li wrote:

>> Looks good to me. However, I did change OidIsValid() and !OidIsValid()
>> back to (oid) and (!oid) conditions to be consistent with the rest of
>> the code.
>
> In the file, I also see:
> ```
>     if (pgrelid == InvalidOid)
> ```
>
> Should we take this opportunity to change to use OidIsValid()
> everywhere in the file? As this feature is new to PG19, we can cleanup
> the inconsistency before releasing v19. Otherwise some people might
> also file a cleanup patch for this in the future.

Yeah, I find "if (oid)" a rather terrible coding pattern. The negative one is perhaps not so bad, but I'd keep both
casessimilar by using the macro in both, for consistency. 

--
Álvaro Herrera