Re: pg14 psql broke \d datname.nspname.relname

> On Oct 12, 2021, at 10:03 AM, Robert Haas <robertmhaas@gmail.com> wrote:
> 
> On Tue, Oct 12, 2021 at 12:57 PM Justin Pryzby <pryzby@telsasoft.com> wrote:
>> I think there's an easy answer here that would satisfy everyone; two patches:
>> 0001 to fix the unintentional behavior change;
>> 0002 to reject garbage input: anything with more than 3 dot-separated
>>     components, or with 3 components where the first doesn't match
>>     current_database.
>> 
>> 0001 would be backpatched to v14.
>> 
>> If it turns out there's no consensus on 0002, or if it were really hard for
>> some reason, or (more likely) nobody went to the bother to implement it this
>> year, then that's okay.
> 
> This might work, but I fear that 0001 would end up being substantially
> more complicated than a combined patch that solves both problems
> together.

Here is a WIP patch that restores the old behavior, just so you can eyeball how large it is.  (It passes check-world and I've read it over once, but I'm not ready to stand by this as correct quite yet.)  I need to add a regression test to make sure this behavior is not accidentally changed in the future, and will repost after doing so.