Re: Data type confusion

Поиск
Список
Период
Сортировка
От Allan Engelhardt
Тема Re: Data type confusion
Дата
Msg-id 3B6DC695.599C2571@cybaea.com
обсуждение исходный текст
Ответ на Data type confusion  ("Josh Berkus" <josh@agliodbs.com>)
Ответы Re: Re: Data type confusion
Список pgsql-sql
Josh Berkus wrote:

> This is a multi-part MIME message
>
> --_===97089====davinci.ethosmedia.com===_
> Content-Type: text/plain; charset="ISO-8859-1"
> Content-Transfer-Encoding: 8bit
>
> Tom, Stephan,
>
> I'm writing up the date/time FAQ, and I came across some operator
> behavior that confuses me:
>
> If
> INTERVAL / INTEGER = INTERVAL
>
> then why does
> INTERVAL / INTERVAL = ERROR?
>
> Shouldn't
> INTERVAL / INTERVAL = INTEGER?
>
> I'd like to answer this before I finish the FAQ, as it seems
> inconsistent behavior.
>
> -Josh
>
>

Josh,

I'm not Tom or Stephan (sorry) but in your scenario what would be the result of, say, dividing '3 months ago' with '6
seconds'in the future?
 

I don't think it makes conceptual sense to divide intervals....


Allan.



В списке pgsql-sql по дате отправления:

Предыдущее
От: "Josh Berkus"
Дата:
Сообщение: Re: Re: Date Time Functions - ANSI SQL ?
Следующее
От: Tom Lane
Дата:
Сообщение: Re: Data type confusion