Re: trouble with a join on OS X

Поиск
Список
Период
Сортировка
От Joshua D. Drake
Тема Re: trouble with a join on OS X
Дата
Msg-id 45C400B2.8010008@commandprompt.com
обсуждение исходный текст
Ответ на Re: trouble with a join on OS X  (Kirk Wythers <kwythers@umn.edu>)
Список pgsql-performance
Kirk Wythers wrote:
>
> On Feb 2, 2007, at 8:32 PM, Tom Lane wrote:
>
>> Kirk Wythers <kwythers@umn.edu> writes:
>>> On Feb 2, 2007, at 7:39 PM, Luke Lonergan wrote:
>>>> Now he's got to worry about how to page through 8GB of results in
>>>> something less than geological time with the space bar ;-)
>>
>>> I actually have no intention of paging through the results, but
>>> rather need to use the query to get the results into a new table with
>>> UPDATE, so that a GIS system can do some interpolations with subsets
>>> of the results.
>>
>> Er ... then why are you SELECTing the data at all?  You can most likely
>> get it done much faster if the data stays inside the database engine.
>>
>>
>
> The new table needs to be filled with the results of the join. If there
> is a way to do this without a SELECT, please share.


INSERT INTO foo SELECT * FROM BAR JOIN baz USING (id)

Joshua D. Drake

>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Have you searched our list archives?
>
>               http://archives.postgresql.org
>


--

      === The PostgreSQL Company: Command Prompt, Inc. ===
Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240
Providing the most comprehensive  PostgreSQL solutions since 1997
             http://www.commandprompt.com/

Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate
PostgreSQL Replication: http://www.commandprompt.com/products/


В списке pgsql-performance по дате отправления:

Предыдущее
От: Kirk Wythers
Дата:
Сообщение: Re: trouble with a join on OS X
Следующее
От: Tom Lane
Дата:
Сообщение: Re: trouble with a join on OS X