Re: Object-relational impedence
Date: Thu, 13 Mar 2008 08:42:37 +0000
> S Perryman wrote:
TM>"Types" tend to rely on similar hierarchical taxonomies (or at least TM>DAG taxonomies) that inheritance does, and *suffer similar problems*. TM>It is difficult to reduce most non-trivial real-world things into such TM>trees/dags because they generally don't fit such, especially over the TM>longer run. Even numbers, the poster child of "types", tend to get TM>ugly if try to create a tree taxonomy with them. Feature sets are a TM>more flexible and natural way to represent and manage variations-on-a- TM>theme. (Disclaimer: I have no objective metrics to measure "more TM>natural" and "flexible" at the moment.)
>>Your rantings :
>>1. pollute my pleasant experience of recent debate with people who actually >> know something about database fundamentals, and have contributions >> related to other areas
Types do *not* "rely on similar hierarchical taxonomies (or at least DAG taxonomies)" .
#1 If this is the case, then "objectively" show us why this is so.
Steven Perryman Received on Thu Mar 13 2008 - 09:42:37 CET