Re: dynamic rules?
| От | Bruno Wolff III |
|---|---|
| Тема | Re: dynamic rules? |
| Дата | |
| Msg-id | 20040604181823.GA20549@wolff.to обсуждение исходный текст |
| Ответ на | Re: dynamic rules? (Bruno Wolff III <bruno@wolff.to>) |
| Список | pgsql-sql |
On Fri, Jun 04, 2004 at 09:16:04 -0700, Christopher Dedels <cdedels@mygeotivity.com> wrote: > Bruno, > > Thanks for the response. You should keep the discussion copied to the list as long as it is on topic. That way other people can help out. > I was wondering if I was possible to union the tables if necessary. So, if > I choose type=1 it selects from only the 'one' table and likewise with 2. > However, if I query type=1 or type=2 it will union the two and return the > results from both tables. That is a planner issue. I suspect that currently postgres won't be able to see that a union isn't necessary. However unless performance is a real problem for you, you are better off using simpler code to help maintainance.
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