Re: Referential integrity problem

On Mon, 18 Jun 2001 pgsql-bugs@postgresql.org wrote:

> Denis Sbragion (d.sbragion@infotecna.it) reports a bug with a severity of 3
> The lower the number the more severe it is.
>
> Short Description
> Referential integrity problem
>
> Long Description It looks like performing operation in two steps on
> tables with multiple deferred referential integrity constraints
> between them is not allowed. Not sure this is a bug, may be it is
> required by the standards, but sure it is rater counterintuitive (may
> be, of course, I'm completely wrong). Most of the times this is just
> annoying, sometimes it doesn't let you do updates, i.e. whenever you
> cannot perform the update in a single step (I found at least one
> case). Tested both on 7.0.3 and 7.1.2, with same results.
>
> P.S. Great job guys. 7.0.3 was very good, but 7.1.2 is simply wonderful.

Yep.  AFAICT it's currently broken for such cases.  I've been working
(slowly :() on fixing it so it doesn't try the checks on rows that are no
longer valid (such as the intermediate states of multiple updates).