Jan,
> All of this is wrong. If the constraints are defined to be
> INITIALLY DEFERRED, all you have to do is to wrap all the
> changes that put the database into a temporary inconsistent
> state into a transaction. What is a good idea and strongly
> advised anyway.
>
> DEFERRED means, that the consistency WRT the foreign key
> constratins will be checked at COMMIT time instead of the
> actual statement. So if you
Hmmm... sounds interesting. Can this be done through functions? I.E.,
if I put the INSERT/INSERT/UPDATE operation inside a function, does it
automatically wait until the function completes before checking
constraints?
> Josh, maybe you should buy a newer SQL-bo... :-)
>
> Got ya (LOL)!
Zap! Ouch. ;-)
>
> The point is that we based our implementation of foreign keys
> on the SQL3 specs. DEFERRED is not in SQL-92 AFAIK.
>
Know a good SQL3 book? I bought O'Reilly's SQL In A Nutshell for that,
but the book has numerous omissions and a few mistakes.
-Josh Berkus
______AGLIO DATABASE SOLUTIONS___________________________
Josh Berkus
Complete information technology [EMAIL PROTECTED]
and data management solutions (415) 565-7293
for law firms, small businesses fax 621-2533
and non-profit organizations. San Francisco
---------------------------(end of broadcast)---------------------------
TIP 6: Have you searched our list archives?
http://www.postgresql.org/search.mpl
