How to identify the class of a record

From: Andre Fortin <andrefor(at)axionet(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: How to identify the class of a record
Date: 2000-12-30 21:14:36
Message-ID: 3A4E503C.4ADA926A@axionet.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

Hi!,

Here is a scenario. The database contains 3 tables: the parent table is
Equipment with tables Computers and Monitors inheriting from it.

CREATE TABLE Equipment (...);
CREATE TABLE Computers (...) INHERITS (Equipment);
CREATE TABLE Monitors (...) INHERITS (Equipment);

When doing a SELECT on the parent with the asterisk suffix syntax, we
get rows from Computer and Monitor.

SELECT * from Equipment*;

Is there a way to know from which table each row in the returned record
set belongs to, as you can do with OO languages. If this is possible,
could you point where more information could be located on this type of
design when working with Postgres.

Thanks,

-- Andre

Responses

Browse pgsql-general by date

  From Date Subject
Next Message Thomas T. Thai 2000-12-30 23:08:49 Re: NetBSD/Alpha and rkirkpat's patch [was Re: regress failed tests.. SERIOUS?]
Previous Message Franck Martin 2000-12-30 21:09:01 new geoobj type in PG.