From: | ABBAS SHAKEEL <shakeel(dot)abbas(dot)qau(at)gmail(dot)com> |
---|---|
To: | pgsql-admin(at)postgresql(dot)org |
Subject: | Inheritance in Postgresql ? |
Date: | 2009-12-16 06:36:48 |
Message-ID: | a498e47a0912152236x4522882duefe8bf4450966c3e@mail.gmail.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-admin |
Hello
I am not an expert for database but rarely design database for Web and IVR
applications.
Today I wonder if there is any practical advantage of inheritance of Tables.
Lets take the same example that is commonly referred.
CREATE TABLE cities (
name text,
population float,
altitude int -- in feet
);
CREATE TABLE capitals (
state char(2)
) INHERITS (cities);
Capital table inherit attributes from Cities but no data. I am
confused with concept of inheritance in postgres.
In These tables what i was supposing is inheritence as that in JAVA. but its
seems to be a different scene.
Can some one Please compare inheritence in JAVA and Postgresql OR make me
clear about for what inheritance is introduced in Postgres.
--
Best Regards
Shakeel Abbas
From | Date | Subject | |
---|---|---|---|
Next Message | Scott Marlowe | 2009-12-16 06:51:56 | Re: Inheritance in Postgresql ? |
Previous Message | Gurjeet Singh | 2009-12-16 05:18:45 | Re: Internal fragmentations statistics Was: VACUUM FULL memory requirements |