Re: getting inherited table name

From: Nico <nicod(at)tiscalinet(dot)it>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: getting inherited table name
Date: 2001-09-06 17:11:34
Message-ID: 9n83hg$2mes$1@news.tht.net
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Eric Kolve wrote:

> In the pgsql tutorial two tables are created capitals inherits cities.
>
> When you do SELECT * FROM cities, you get both capitals and cities. Is
> there anyway to get get the name of the table so I could possibly know
> the 'type' it was? Or should this be maintained as a separate column
> 'city_type' that has a value of 'capital'?
>
> Suppose I had another table river_cities and what I would want to be
> able to is SELECT * FROM cities and know whether the city was a
> river_city, capital, or nothing at all.

No additional fields are required:

SELECT c.*, c.tableoid, pgc.relname as city_type
FROM cities c, pg_class pgc
WHERE c.tableoid = pgc.oid

regards
Nico

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