Re: Worthwhile optimisation of position()?

Поиск
Список
Период
Сортировка
От Jim C. Nasby
Тема Re: Worthwhile optimisation of position()?
Дата
Msg-id 20060324100145.GM90527@pervasive.com
обсуждение исходный текст
Ответ на Re: Worthwhile optimisation of position()?  (Christopher Kings-Lynne <chris.kings-lynne@calorieking.com>)
Список pgsql-hackers
On Fri, Mar 24, 2006 at 02:58:54PM +0800, Christopher Kings-Lynne wrote:
> >Yeah.  AFAICS the transformation Chris suggested is valid.  I'm really
> >dubious that it's worth expending planner cycles to look for it though.
> >LIKE is something that everybody and his brother uses, but who uses this
> >position()=0 locution?
> 
> One of our junior developers :)  Which is why I noticed it.

Sounds like time to bust out the cluebat. :)
-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461


В списке pgsql-hackers по дате отправления:

Предыдущее
От: "Jim C. Nasby"
Дата:
Сообщение: Re: Did this work in earlier version of Postgres?
Следующее
От: Thomas Hallgren
Дата:
Сообщение: Shared memory