Re: [GENERAL] getting inherited table name

2001-09-06 Thread Nico

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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[GENERAL] getting inherited table name

2001-09-06 Thread Eric Kolve

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.

thanks,
--eric

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