RE: psql \l error

> -----Original Message-----
> From: SAKAIDA Masaaki [mailto:sakaida@psn.co.jp]
> 
> "Hiroshi Inoue" <Inoue@tpf.co.jp> wrote:
> > 
> > In general client libraries/applications have to keep backward 
> > compatibility as possible,so it isn't enough for clients to be able to
> > talk to the latest version of PostgreSQL servers.
> > 
> > Comments ?  
> 
>   I agree with you. 
> 
>   User doesn't know how the specification of the server has been 
> changed. Therefore, it is natural that user believe that new 
> psql can talk to older server. Because backward compatibility is 
> a reasonable rule of the upgrading in generic client software.
>

Hmm,sorry for my poor English.
What I meant is a little different from yours.
What I wanted was to know official opinions about backward
compatibility of clients(not only psql)included in PostgreSQL's
release.

As for psql it isn't a generic client software as Peter mentioned.
It's a part of backend in a sense. At least it could talk to pre-7.0
backend and it isn't so critical that \l,\df and \dd doesn't work for 
pre-7.0 backends. I'm not so much eager to change psql myself.

There's already your pgbash that keeps backward compatibility.
 
Regards.

Hiroshi Inoue
Inoue@tpf.co.jp