| From: | Shridhar Daithankar <shridhar(at)frodo(dot)hserus(dot)net> |
|---|---|
| To: | Postgresql Advocacy <pgsql-advocacy(at)postgresql(dot)org> |
| Subject: | Re: Question |
| Date: | 2004-02-21 16:10:30 |
| Message-ID: | 403782F6.5050404@frodo.hserus.net |
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| Lists: | pgsql-advocacy |
Rod Taylor wrote:
> rbt=# select nspname, sum(relpages) from pg_class join pg_namespace n on
> (relnamespace = n.oid) group by nspname, relnamespace having 2 > (SELECT
> count(*) from pg_constraint where relnamespace = connamespace);
>
> With some effort you might be able to get the above down to a single
> line (shorter column names, etc.).
>
> It takes the sum of pages used by relations in namespaces with a minimum
> of 2 constraints.
I think any query fiddling with metadata is a bad idea for a sig.
I would say overriding function calls in a single query would make great
example. After all O in ORDBMS is for overriding..:-)
How about declaring a contest on general? An event always stirrs up creativity.
Shridhar
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