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Changes for Foreign Keys from 7.0.3 to 7.1beta?

From: Mirko Zeibig <mirko(at)picard(dot)inka(dot)de>
To: PostgreSQL General <pgsql-general(at)postgresql(dot)org>
Subject: Changes for Foreign Keys from 7.0.3 to 7.1beta?
Date: 2000-12-29 16:16:44
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-general
the following script is a simplified excerpt from a database for a
--- snip ---
\connect template1 postgres
drop database test;
create database test;
\connect test postgres

create table LNG (
   LNG_ID               char(2),
   LNG_NAME             varchar(30),
   primary key (LNG_ID)

create table OBJ (
   OBJ_ID               integer     not null,
   OBJ_LNG_ID           char(2) constraint FK_OBJ_LNG_ID 
	                        references LNG(LNG_ID),
   OBJ_CONT             text,
   primary key (OBJ_ID,OBJ_LNG_ID)

create table RSC (
   RSC_ID               serial,
   RSC_OBJ_ID           integer constraint FK_RSC_OBJ_ID 
	 	                      references OBJ(OBJ_ID)
                          on update cascade
                          on delete cascade,
   primary key (RSC_ID)
--- snap ---

Resources for a page are collected in table RSC, language-dependancy is
resolved by combining OBJ_LNG_ID and OBJ_ID. 
Now run in 7.0.3 (RedHat 7.0-RPMs) this script will do without problems,
however with 7.1beta (CVS updated on 12-28-2000) I get:
ERROR:  UNIQUE constraint matching given keys for referenced table "obj" not
Do I have to have a UNIQUE index for OBJ_ID then? Well, I do not see the
point why this has to be.

Any hints?

Best Regards


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Next:From: Stephan SzaboDate: 2000-12-29 16:41:00
Subject: Re: Changes for Foreign Keys from 7.0.3 to 7.1beta?
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