Re: BUG #18711: Attempting a connection with a database name longer than 63 characters now fails

Hi,

On Wed, Nov 20, 2024 at 10:10:51AM -0500, Tom Lane wrote:
> Bertrand Drouvot <bertranddrouvot.pg@gmail.com> writes:
> > Could we rely on pg_encoding_max_length() instead of MAX_MULTIBYTE_CHAR_LEN? That
> > would then work for short characters too IIUC.
> 
> No.  We don't know which encoding it is.  Even if you wanted to say
> "use the database encoding", we haven't identified the database yet.

I had in mind to "fully scan" pg_database in GetDatabaseTuple(), get the datname
and encoding from FormData_pg_database and start from there the comparison 
with the dbname passed as an argument to GetDatabaseTuple(). Thoughts?

Regards,

-- 
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com