Re: core.logic vs datomic

2012-12-10 Thread Herwig Hochleitner
In my very incomplete understanding, the main difference between datalog and core.logic is that datalog is set-oriented and core.logic is tuple-oriented. Also datalog is designed to join and filter on external datasources, while in core.logic, fresh vars (i.e. join points ??) also can be created in

Re: core.logic vs datomic

2012-12-09 Thread Brent Millare
You are right. I am referring to the querying function, not datomic on the whole. I have my own understanding about the differences but I was interested in hearing others. Please don't feel pressured to answer my question. I'm trying to compile understanding akin to stackoverflow, where as lon

Re: core.logic vs datomic

2012-12-09 Thread Nick Zbinden
First of all, stop saying 'on datomic'. Datomic as a Database, witch in its Peer library has a implmentation of Datalog. This implmentation of Datalog has basicly nothing to do with the rest of datomic, it can be used as a query language for data from all sources, it just comes with the Datomic

Re: core.logic vs datomic

2012-12-09 Thread Brent Millare
Can you elaborate on the zebra puzzle? What particular aspect is required? What would need to be implemented to get it to work on datomic? On Sunday, December 9, 2012 5:48:55 AM UTC-5, Nick Zbinden wrote: > > You have a misunderstanding. > > core.logic and datomic datalog are not the same thing.

Re: core.logic vs datomic

2012-12-09 Thread Nick Zbinden
You have a misunderstanding. core.logic and datomic datalog are not the same thing. core.logic is a turing complet logic engine, datomic datalog is only a querying subpart of this. You can not solve the zebra problem with datomic datalog, its impossible. Think of datomic datalog as if it would

core.logic vs datomic

2012-12-08 Thread Brent Millare
I understand both core.logic and datomic offer a query system. While there are clear interface differences, and the systems are continuing to evolve so the answer will change over time, however, I don't have a good first order approximation understanding of the capabilities or performance diffe