Hi Neo4j/TinkerPop people,
I am wondering if Neo4j will become more efficient in its representation of RDF
named graphs now that it has relationship property indexing. Efficient in terms
of space. If I remember correctly, a quad statement is ?2? neo4j relationships.
The reason being, there was no way to get the 'g' in 'spog' in an efficient
(index) manner without such a representation. Thus, without this ?2?-statement
construction, a getStatements(null,null,null,tg:someGraph) would require a scan
of all relationships.
Now with being able to index relationship properties, its possible to have
tail_node [value: uri/bnode]
relationship: [graph: uri/bnode] [label: uri]
head_node [value: uri/bnode/literal]
- See
https://github.com/tinkerpop/gremlin/wiki/Modeling-RDF-as-a-Property-Graph
For the Blueprints scene, I'm wondering if it would be good to implement Sail
in Blueprints (we currently have Blueprints implementing Sail). As such, we
could turn any multi-index graph database into an RDF quad store without
requiring the multi-index graph database to even support, know about, or
contribute a Sail implementation... (of course, they would have to have a
Blueprints implementation).
Thoughts?
Marko.
http://markorodriguez.com
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