Re: Idempotence and "Replication Insensitivity" are equivalent ?

pamelafluente_at_libero.it ha scritto:

>
> computational complexity / market request

 Ah, and ...
and clearly the above is unnecessarily restrictive. :))

ALL decent tools allow the user to define its own CUSTOM aggregate functions.

If one user has a tiny db of a few records and he want to do some complicate computation, even quadratic or factorial, it's totally up to him. Let him discover how long it takes!!

The last time I coded something similar, I just gave the user to call its own code
on a group of records. If I didn't, I would be out of the market.

To me an aggregative function is this:

            "Any function that takes n (>0) objects and returns 1 object."

 where "object" is to be intended as any type including "System.Object" (datetime, double, single, string, integer, etc.)

In general we could even allow the return to be a "collection" (which could be further processed), even though this seems not well represented by the term "aggregate".

  ok I said that :) ready for flames :))

-P Received on Wed Sep 20 2006 - 03:54:13 CDT