Re: client libpq multibyte support

SAKAIDA Masaaki <sakaida(at)psn(dot)co(dot)jp> writes:
> A client application using libpq made by non-MULTIBYTE
> can not talk to server made by MULTIBYTE.

> admin=# select * from SJIS_KANJI ;
> \: extra argument ';' ignored
> \: extra argument ';' ignored
> Invalid command \. Try \? for help.

Ugh :-(. We have not seen this reported before --- do you know exactly
where it's coming from? (I suspect it may be a psql issue not a libpq
issue, but hard to say without more info.)

> I hope that a client 7.0-libpq and an application always be
> made by "configure --enable-multibyte" even if MULTIBYTE isn't
> necessary for backend. If so, the above problem will be solved.

I do not think that will go over well with people who don't need
multibyte support, since the MULTIBYTE code is a good deal larger
and slower. Also, AFAIK we didn't have any such problem in 6.5, so
perhaps this is just a small bug not requiring such a sledgehammer
solution. We need to look more closely.

regards, tom lane