Re: Timestamp with libpq

Поиск
Список
Период
Сортировка
От Michael Meskes
Тема Re: Timestamp with libpq
Дата
Msg-id 20081013125929.GA23953@feivel.credativ.de
обсуждение исходный текст
Ответ на Re: Timestamp with libpq  (Jakob Lechner <jakob.lechner@applstrudl.com>)
Ответы Re: Timestamp with libpq  (Jakob Lechner <jakob.lechner@applstrudl.com>)
Список pgsql-interfaces
> > Is there any reason to use a binary transfer? 
> 
> If I use textual transfer I'm losing precision. E.g. for timestamps the
> returned string from my table is "1955-06-08 00:00:00". Thus I'm
> restricted to timestamps with a granularity of 1 second.

I doubt this. It might be true for double storage but not for 8 byte integers,
well that is in the database of course. But I see no reason whatsoever that the
data is truncated by libpq. 

> > about using ecpg instead of libpq?
> 
> The generic database interface I'm writing is part of a basic library
> used in our project. The interface serves as an abstraction for
> accessing different database servers (Postgres, MSSQL, ...). I'm
> currently working on the postgres implementation of the interface. 
> As far as I've seen using ecpg means to hardcode SQL statements which of
> course can't be done in a generic library.

No, this is not true. You can execute arbitrary statements in ecpg as well.

Michael
-- 
Michael Meskes
Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
Michael at BorussiaFan dot De, Meskes at (Debian|Postgresql) dot Org
ICQ: 179140304, AIM/Yahoo: michaelmeskes, Jabber: meskes@jabber.org
Go VfL Borussia! Go SF 49ers! Use Debian GNU/Linux! Use PostgreSQL!


В списке pgsql-interfaces по дате отправления:

Предыдущее
От: Jakob Lechner
Дата:
Сообщение: Re: Timestamp with libpq
Следующее
От: Jakob Lechner
Дата:
Сообщение: Re: Timestamp with libpq