Re: Are circular REFERENCES possible ?

Tom Lane wrote:
> Jan Wieck <JanWieck@Yahoo.com> writes:
> >     The point is that we based our implementation of foreign keys
> >     on the SQL3 specs. DEFERRED is not in SQL-92 AFAIK.
>
> I still have a concern about this --- sure, you can set up the circular
> references using ALTER TABLE, but will pg_dump dump them correctly?
   AFAIK yes.
   I'm  not  sure if it still uses the CONSTRAINT TRIGGER syntax   or does it now with ALTER TABLE. But for sure it
creates all   tables  first,  then  loads  the  data,  then  activates  the   constraints (wouldn't work very well
otherwise).


Jan

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