Syntax error at or near “on”

[Alexander Farber <alexander.farber@xxxxxxxxx>]

Hello!

In PostgreSQL 8.4.13 why do I please get the syntax error

ERROR:  syntax error at or near "on"
LINE: ... references balkan_users(id) check (id <> author) on delete ...

for the following 2 statements?

create table balkan_users (
        id varchar(32) primary key,
        first_name varchar(64) not null,
        last_name varchar(64),
        female boolean,
        avatar varchar(128),
        city varchar(64),
        mobile varchar(64),
        login timestamp default current_timestamp,
        logout timestamp,
        last_ip inet,
        vip timestamp,
        mail varchar(256),
        green integer,
        red integer,
        medals integer not null default 0
);

create table balkan_rep (
        rep_id serial,
        id varchar(32) references balkan_users(id) check (id <>
author) on delete cascade,
        author varchar(32) references balkan_users(id) on delete cascade,
        author_ip inet,
        nice boolean,
        about varchar(256),
        stamp timestamp default current_timestamp,
        primary key(id, author);
);

Thank you!
Alex


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