Re: Question
От | Shridhar Daithankar |
---|---|
Тема | Re: Question |
Дата | |
Msg-id | 403782F6.5050404@frodo.hserus.net обсуждение исходный текст |
Ответ на | Re: Question (Rod Taylor <pg@rbt.ca>) |
Ответы |
Re: Question
Re: Question |
Список | 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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