Re: configure datatype name > 31? - Mailing list pgsql-admin

From Tom Lane
Subject Re: configure datatype name > 31?
Date
Msg-id 11810.1021313789@sss.pgh.pa.us
Whole thread Raw
In response to configure datatype name > 31?  ("Mark McEahern" <mark@mceahern.com>)
Responses Re: configure datatype name > 31?  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-admin
"Mark McEahern" <marklists@mceahern.com> writes:
> Tom, thanks for your reply.  I am now able to create databases and users
> with longer names, but I am unable to login with the long username.

I think you're stuck on that, unless you want to be *really*
incompatible with the rest of the world.  The startup packet format has
hard-wired field sizes --- see src/include/libpq/pqcomm.h:

#define SM_DATABASE        64
#define SM_USER            32
#define SM_OPTIONS        64
#define SM_UNUSED        64
#define SM_TTY            64

Don't ask me why SM_USER is different from the rest :-(

If you change these I'd strongly advise bumping the protocol minor
version number, so that you don't have weird behavior should you try
to interoperate with standard code.

This is another thing that should be on the list of stuff to fix when
we next change the FE/BE protocol ...

            regards, tom lane

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