Re: Support for persistant objects in PostgreSQL? - Mailing list pgsql-hackers

From Marc G. Fournier
Subject Re: Support for persistant objects in PostgreSQL?
Date
Msg-id 20040802141817.S14810@ganymede.hub.org
Whole thread Raw
In response to Re: Support for persistant objects in PostgreSQL?  (Josh Berkus <josh@agliodbs.com>)
List pgsql-hackers
On Mon, 2 Aug 2004, Josh Berkus wrote:

> Suresh,
>
>> Is persistant objects and references to these objects
>> supported in PostgreSQL? If so can anyone point me to
>> the documentation for these?
>
> These structures are usually known as "Composite Types", although they have a
> different, less intuitive name in the SQL99 standard which escapes me at the
> moment.   "Persistant Objects" is an Oracle-ism which is why you're having
> trouble finding help on it.
>
> Currently 7.4 PostgreSQL 7.4 supports the creation of such types and use of
> them in Functions and queries.  However, using them as a table column will
> not be supported until the next PostgreSQL version, coming soon.

Is this much different (and how?) then using inheritance?  CREATE TABLE vs 
CREATE TYPE ... but looking at the example he provided, that was my first 
thought ...

----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email: scrappy@hub.org           Yahoo!: yscrappy              ICQ: 7615664


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