Re: Should this require CASCADE?

From: "Groff, Dana" <Dana(dot)Groff(at)filetek(dot)com>
To: 'Tom Lane' <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Should this require CASCADE?
Date: 2002-07-11 16:43:18
Message-ID: BBEF73AAE684D411BD8A00209412096D01592033@mailserv.filetek.com
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I think that is the proper behavior Tom.

Also I agree with Bruce that this might be an oversight in the standard. That
is why standards evolve. As I write this I am also sending a note to H2 asking
about this very issue. The latest working draft still has this construct.

Dana

> -----Original Message-----
> From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
> Sent: Thursday, July 11, 2002 12:36 PM
> To: Bruce Momjian
> Cc: Groff, Dana; Jan Wieck; Stephan Szabo;
> pgsql-hackers(at)postgresql(dot)org
> Subject: Re: [HACKERS] Should this require CASCADE?
>
>
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > Now, if someone wanted to say CASCADE|RESTRICT was
> > required for DROP _only_ if there is some foreign key
> references to the
> > table, I would be OK with that, but that's not what the
> standard says.
>
> But in fact that is not different from what I propose to do. Consider
> what such a rule really means:
> * if no dependencies exist for the object, go ahead and delete.
> * if dependencies exist, complain.
> How is that different from "the default behavior is RESTRICT"?
>
> regards, tom lane
>

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