Re: [SQL] FOREIGN KEY ...

The message says it all...

The syntax is recognized ( u've used the right one ) but foreign keys are
not implemented in this version.

U may wish to take a look at contrib/spi/refint*
under the Postgres source tree for implementation of referential integrity

Marin

-= Why do we need gates in a world without fences? =-

On Thu, 18 Jun 1998, Pich LY wrote:

> Hi there,
>
> I'm a french student at ESIGETEL, a school engineer specialized in
> Networks and Telecommunications.
>
> Now, I've some trouble with my end year project. We are 4 students
> working on an local Intranet using PostgreSQL as the database manager
> (and Apache as the HTTP server).
>
> The problem is insignifiant : how can you declare an attribute as a
> foreign key ?
> The tables we are focus on are :
> CLIENT FACTURATION
> ------ -----------
> (pkey) no_cli <--\ no_factu (pkey)
> client \-- no_cli (foreign key)
> adr_cli adr_livr
> ... ...
>
> The query (in SQL language) used to declare the "FACTURATION" table is :
> CREATE TABLE Facturation
> (
> no_factu INTEGER PRIMARY KEY,
> no_cli INTEGER REFERENCES Client,
> adr_livr VARCHAR(50),
> ...
> );
>
> We can also use :
> CREATE TABLE Facturation
> (
> no_factu INTEGER PRIMARY KEY,
> no_cli INTEGER,
> adr_livr VARCHAR(50),
> ...
> CONSTRAINT ct_factu REFERENCES (no_cli) FOREIGN KEY
> Client (no_cli)
> );
>
> But it doesn't seems to work ! "psql" gives us the following message :
> "NOTICE: CREATE TABLE/FOREIGN KEY clause ignored: not yet
> implemented"
> !!!
>
> What's the right syntaxe ???
>
> Thanks for the help...
>
> ;-)
>