> Of course, the point of using an ORM in the first place is to specify 
> the constraints on the model, not on the underlying DMBS. This is the 
> same argument as why you'd rather use a DBMS instead of writing the 
> physical storage layer yourself.

especially if we come up now how to support the different ways to ensure
constraints on the different databse systems, or even database formats. ;)

> BUT this doesn't mean that the ORM is not allowed to propagate 
> constraints from the model into the DBMS if it would help avoiding to 
> DOUBLE (  o_O  ) the numer of database roundtrips in the common case. As 
> Thomas already noted, there *ARE* ways to implement this AND be race-free.
>
> Which only goes to show that glitz and time to market always trump 
> technical superiority. Just put it into vendor!

where is vendor in puppet ;)

cheers pete

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