RE: Foreign key - Mailing list pgsql-sql

From Robby Slaughter
Subject RE: Foreign key
Date
Msg-id EPEHLKLEHAHLONFOKNHNMEIJDDAA.webmaster@robbyslaughter.com
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In response to Foreign key  ("Lorenzo De Vito" <lorenzodevito@email.it>)
List pgsql-sql
Uh...I think foreign keys are supported:
 
CREATE TABLE main
  ( id INTEGER,
    data TEXT );
 
CREATE TABLE secondary
  ( mainid INTEGER REFERENCES main(id),
    data TEXT );
 
That will make your joins:
 
 SELECT * FROM main,secondary WHERE id = mainid;
 
much more efficient.
 
-Robby
-----Original Message-----
From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org]On Behalf Of Lorenzo De Vito
Sent: Thursday, August 02, 2001 11:24 AM
To: pgsql-sql@postgresql.org
Subject: [SQL] Foreign key

What's the best way to build a relation between two tables ?
I know that Foreign key is no longer supported.

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