RE: [GENERAL] FOREIGN KEY syntax

The following information is based on gram.y file of postgres sources

FOREIGN KEY ( columnList ) REFERENCES tableName [ ( columnList) ] [MATCH
FULL] [ON DELETE action] [ON UPDATE action]

[[NOT] DEFERRABLE] [INITIALLLY {IMMEDIATE | DEFERRED}] (not all matches are
allowed)

"action" is  {NO ACTION | RESTRICT | CASCADE | SET NULL_P | SET DEFAULT }

[ .. ] means optional elements
{  .. | .. | ..} means exactly one of

Regards,
Andrzej Mazurkiewicz

andrzej@mazurkiewicz.org

www.mazurkiewicz.org


> -----Original Message-----
> From:    Ron Peterson [SMTP:rpeterson@yellowbank.com]
> Sent:    2 marca 2000 20:19
> To:    pgsql-general@postgreSQL.org
> Subject:    [GENERAL] FOREIGN KEY syntax
>
>
> I've downloaded and installed the 7.0 beta.  Works great so far!
>
> I noticed on the change list that foreign key support has been added.
> However, information about the use of this feature hasn't made it into
> the documentation yet.  Can anyone give me some examples of how to use
> FOREIGN KEY in postgresql?
>
> Ron Peterson
> rpeterson@yellowbank.com
>
> ************