Re: Minor cleanup for search path cache

On Mon, 2024-01-01 at 16:38 -0500, Tom Lane wrote:
> I happened to notice that there is a not-quite-theoretical crash
> hazard in spcache_init().  If we see that SPCACHE_RESET_THRESHOLD
> is exceeded and decide to reset the cache, but then nsphash_create
> fails for some reason (perhaps OOM), an error will be thrown
> leaving the SearchPathCache pointer pointing at already-freed
> memory.

Good catch, thank you. I tried to avoid OOM hazards (e.g. b282fa88df,
8efa301532), but I missed this one.

> I also observed that the code seems to have been run through
> pgindent without fixing typedefs.list, making various places
> uglier than they should be.
>
> The attached proposed cleanup patch fixes those things and in
> passing improves (IMO anyway) some comments.  I assume it wasn't
> intentional to leave two copies of the same comment block in
> check_search_path().

Looks good to me.

Regards,
    Jeff Davis