Re: [SQL] newbie outer-join

On 1999-11-08, Matlack, Brad mentioned:

> I'm trying to do what I think is an outer-join:
>
> SELECT
> da.datname as database,
> de.description as comment
> FROM
> pg_database as da,
> pg_description as de
> WHERE
> (da.oid = de.objoid)
>
> Obviously, if there are no descriptions, no values will be returned.
> What I want is to display all databases, with comments (valid or null).

SELECT datname, [...,] obj_description(pg_database.oid) FROM pg_database;

is a work-around. Outer joins will appear in the next release, so I hear.

--
Peter Eisentraut Sernanders vaeg 10:115
peter_e(at)gmx(dot)net 75262 Uppsala
http://yi.org/peter-e/ Sweden