Re: Type Inheritance

hi tom thanks for reply.

im trying to provide inheritance for data types (domains), not tables. i will look into the syntax associated with
domainsas data types does not include an inheritance function (or so i think). 

regards andy.


----- Original Message -----
From: "Tom Lane" <tgl@sss.pgh.pa.us>
To: "Andrew Thorley" <andrew.thorley@linuxmail.org>
Subject: Re: [SQL] Type Inheritance
Date: Fri, 26 Nov 2004 13:14:07 -0500

>
> "Andrew Thorley" <andrew.thorley@linuxmail.org> writes:
> > Does anyone know how to implement type inheritance in postgresql? in oracle you just use the word UNDER in ur code
i.e:
> > CREATE TYPE test2_UDT UNDER test1_UDT AS (abc INT);
>
> If you had said what this *does*, we might be better able to help.
>
> But take a look at CREATE DOMAIN, as well as the INHERITS and LIKE
> options in CREATE TABLE.  Some part of that might be close to what
> you are looking for.
>
>             regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
>       joining column's datatypes do not match
>

--
______________________________________________
Check out the latest SMS services @ http://www.linuxmail.org
This allows you to send and receive SMS through your mailbox.


Powered by Outblaze