[sc34wg3] TMQL: Input requirements

[Rani Pinchuk]

Dear Patrick,

As I understand it, #2 you suggest is not relevant here. The user should 
not even know where the topic map is stored. He should refer to the 
topic map with certain URI (let's say) and if it happens that part of 
the topic map is stored elsewhere, this should be transparent to the 
user (and not relevant to TMQL at all).

So only #1 is correct, with your comment in bracket that the place of 
the topic maps can be anywhere (same storage or not).

Kind regards,

Rani

Patrick Durusau wrote:
> Greetings!
> 
> Looking over the old requirements 
> (http://www.itscj.ipsj.or.jp/sc34/open/0448.htm) and encountered:
> 
>> TMQL MUST allow to specify queries shall be able to span over multiple 
>> topic maps. This is to say, that TMQL should allow querying of topic 
>> maps stored in a distributed fashion.
> Err, that is two separate requirements, yes?
> 
> 1. Queries are executed over 2 or more topic maps (storage irrelevant).
> 
> 2. Queries are executed over 1 or more topic maps stored in a 
> distributed fashion (that is the topic map(s) present a single interface 
> for queries).
> 
> The reason I ask is that #2 seems to me to be a question of how 
> distributed storage of a map is managed and what interface it presents 
> to any TMQL engine. Not something that TMQL can really define.
> 
> Hope everyone is having a great day!
> 
> Patrick
> 

-- 
Rani Pinchuk
Project Manager
Space Applications Services
Leuvensesteenweg, 325
B-1932 Zaventem
Belgium

Tel.: + 32 2 721 54 84
Fax.: + 32 2 721 54 44

http://www.spaceapplications.com