Re:Datalog for trees in Clojure
by j-pb on Thursday October 22, 2015 @12:26PM
(#10433114)
Cascalog isn't really datalog.
It is a datalog like fragment without recursion but with added negation. Which makes it more like a pretty syntax for conjunctive queries with negation and thus equivalent in power to SQL.
The tree example of the article would thus not be possible in cascalog.
It is a datalog like fragment without recursion but with added negation. Which makes it more like a pretty syntax for conjunctive queries with negation and thus equivalent in power to SQL.
The tree example of the article would thus not be possible in cascalog.