Re: @ versus ~, redux

Поиск
Список
Период
Сортировка
От Matteo Beccati
Тема Re: @ versus ~, redux
Дата
Msg-id 44FE9A77.80209@beccati.com
обсуждение исходный текст
Ответ на Re: @ versus ~, redux  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-hackers
Tom Lane wrote:
> The existing geometric containment tests seem to be nonstrict, so if we
> wanted to leave room to add strict ones later, it might be best to
> settle on
> 
>     x @>= y        x contains or equals y
>     x <=@ y        x is contained in or equals y
> 
> reserving @> and <@ for future strict comparison operators.

Since the choice of @> and <@ comes from current ltree operators I'd 
like to point out that they are non-strict for ltree, and this could add 
a little bit of inconsistence.


Best regards
--
Matteo Beccati
http://phpadsnew.com
http://phppgads.com


В списке pgsql-hackers по дате отправления:

Предыдущее
От: "Magnus Hagander"
Дата:
Сообщение: Re: Win32 hard crash problem
Следующее
От: Peter Eisentraut
Дата:
Сообщение: Re: Open items for 8.2