Обсуждение: Can't connect to 6.5.2 server with 7.0.2 client

I was just about to give postgres 7.0.2 a try on my development machine,
but after installing it, I find that I can't connect to my 6.5.2
production servers.  The following error message is reported by both psql
and pgaccess, upon trying to connect:

ERROR:  MultiByte strings (MB) must be enabled to use this function

The connection then fails.  Is there some way around this, short of
upgrading all my production servers?

Cheers,

Forest

> I was just about to give postgres 7.0.2 a try on my development machine,
> but after installing it, I find that I can't connect to my 6.5.2
> production servers.  The following error message is reported by both psql
> and pgaccess, upon trying to connect:
>
> ERROR:  MultiByte strings (MB) must be enabled to use this function
>
> The connection then fails.  Is there some way around this, short of
> upgrading all my production servers?

Recompile your 7.0.2 without --enable-multibyte option.
--
Tatsuo Ishii

- Hello
- I had previous experience with Access and MySQL.

-Situation

- I am trying to create the equvilant of the following which is a mysql
command.

- Queston
- But I cannot figure out how to do this is postgresql

"mysql -u root -p mydb < mydb.dump"

- I was trying to create a test database using the following commands using a
very cliche example . This command works on mySQL and should be part of the
ANSI SQL standard


mydb=# INSERT INTO Customer (Customer_ID,Customer_Name,Customer_Address,Customer_Email)
mydb-# VALUES ('1','Danny Ho','99 Second Ave, Kingswood','dannyh@customer.com'),
mydb-# ('2','Randal Handel','54 Oxford Road, Cambridge','randalh@customer.com')
mydb-# ;

-and I get the following errors :

ERROR:  parser: parse error at or near ","

Looking forwrd to your feedback.,

dannyh

dannyH@dix.com.au

Danny wrote:

> - Hello
> - I had previous experience with Access and MySQL.
>
> -Situation
>
> - I am trying to create the equvilant of the following which is a mysql
> command.
>
> - Queston
> - But I cannot figure out how to do this is postgresql
>
> "mysql -u root -p mydb < mydb.dump"
>

I think:
psql -u somebody -d template1 < yourdb.dump
would work.

>
> - I was trying to create a test database using the following commands using a
> very cliche example . This command works on mySQL and should be part of the
> ANSI SQL standard
>
> mydb=# INSERT INTO Customer (Customer_ID,Customer_Name,Customer_Address,Customer_Email)
> mydb-# VALUES ('1','Danny Ho','99 Second Ave, Kingswood','dannyh@customer.com'),
> mydb-# ('2','Randal Handel','54 Oxford Road, Cambridge','randalh@customer.com')
> mydb-# ;
>

you can't insert two values at the same time, you would have to use two INSERT.

>
> -and I get the following errors :
>
> ERROR:  parser: parse error at or near ","
>
> Looking forwrd to your feedback.,
>
> dannyh
>
> dannyH@dix.com.au

>Recompile your 7.0.2 without --enable-multibyte option.

That's a static setting, then?  Oh, bother.  I was hoping the pg7 clients
would be smart enough to fall back as necessary, for connecting
non-multibyte servers.

Forest Wilkinson <fspam@home.com> writes:
> I was just about to give postgres 7.0.2 a try on my development machine,
> but after installing it, I find that I can't connect to my 6.5.2
> production servers.  The following error message is reported by both psql
> and pgaccess, upon trying to connect:

> ERROR:  MultiByte strings (MB) must be enabled to use this function

> The connection then fails.  Is there some way around this, short of
> upgrading all my production servers?

Recompile your 7.0 libpq without MULTIBYTE support.

7.0 servers are less stiff-necked about this incompatibility, but that
won't help you with a 6.5 server...

            regards, tom lane

Danny writes:

> mydb=# INSERT INTO Customer (Customer_ID,Customer_Name,Customer_Address,Customer_Email)
> mydb-# VALUES ('1','Danny Ho','99 Second Ave, Kingswood','dannyh@customer.com'),
> mydb-# ('2','Randal Handel','54 Oxford Road, Cambridge','randalh@customer.com')
> mydb-# ;
>
> -and I get the following errors :
>
> ERROR:  parser: parse error at or near ","

PostgreSQL doesn't support this syntax (yet). You need to split it into
two INSERT commands.

--
Peter Eisentraut      peter_e@gmx.net       http://yi.org/peter-e/