psql and Postgres 7.2

In answering a question on SO I discovered this:

\l PRODUCTION
List of databases
Name | Owner | Encoding | Collate | Ctype | Access
privileges
------------+----------+----------+-------------+-------------+-------------------
production | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |

\c PRODUCTION
FATAL: database "PRODUCTION" does not exist
Previous connection kept

which I traced back to(from Postgres version 14):

src/bin/psql/command.c

/*
* Read and interpret an argument to the \connect slash command.
...

/*
* Ideally we should treat the arguments as SQL identifiers. But for
* backwards compatibility with 7.2 and older pg_dump files, we have to
* take unquoted arguments verbatim (don't downcase them). For now,
* double-quoted arguments may be stripped of double quotes (as if SQL
* identifiers). By 7.4 or so, pg_dump files can be expected to
* double-quote all mixed-case \connect arguments, and then we can get rid
* of OT_SQLIDHACK.
*/

Since Postgres 14 pg_dump only goes back to 8.0 and the \d commands in
psql go back to 7.4, is this something that needs to hang on?

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com