Re: Is Ingres yet relational?
From: Dawn M. Wolthuis <dwolt_at_tincat-group.com>
Date: Fri, 28 May 2004 15:02:55 -0500
Message-ID: <c985tp$uc8$1_at_news.netins.net>
Date: Fri, 28 May 2004 15:02:55 -0500
Message-ID: <c985tp$uc8$1_at_news.netins.net>
"Leandro Guimaraens Faria Corsetti Dutra" <leandro_at_dutra.fastmail.fm> wrote
in message news:pan.2004.05.28.12.47.42.4270_at_dutra.fastmail.fm...
> Em Fri, 28 May 2004 11:11:06 +0000, Alfredo Novoa escreveu:
>
> > I don't know any SQL DBMSs that take advantage on the possible
> > optimization when the attributes are not nullable.
>
> Well, that's the point. Ingres wasn't originally an SQL DBMS.
Ingres, Postgres, Sybase, and SQL Server all have the same QUEL parent from Berkeley work -- is that correct? Are there other databases with this same ancestry? --dawn Received on Fri May 28 2004 - 22:02:55 CEST