As always, it really isn't that simple. Comparing "cold" queries is probably not a good indicator of steady state performance, since RDBMS's and Graph DB's have different models for file system access and caching. Even different RDBMS's have dramatically different behaviors in common queries (ever try to use MySQL for set operations - yuck.). Factor in a wide range of SLAs needed for performance vs availability vs affordability vs scalability vs adminstration costs, and the equation gets a whole lot more complicated.
I'm sure there's a graphy-model for the tag/post example that could be made smoking fast with Neo also. Throw columnar storage, key-value, and document DB's into the mix, and the good news is that we have a lot of weapons in our arsenal now to tackle very demanding and diverse application challenges! -------- Original Message -------- Subject: Re: [Neo] How to efficiently query in Neo4J? From: Michael Ludwig <mil...@gmx.de> Date: Thu, April 08, 2010 6:02 pm To: Neo user discussions <user@lists.neo4j.org> Max De Marzi Jr. schrieb am 08.04.2010 um 16:48:18 (-0500) [Re: [Neo] How to efficiently query in Neo4J?]: > You know this is something that I think needs to be made clear... > using just the graph is not the right way to go unless you have a very > special application. > Some things are better not done in the graph. So I decided to keep > that in tables, and just move the "person relationships" to the graph > (works with, manages, knows, friends, etc). > > I treat the graph like a specialized index. Makes a lot more sense > now, and I get the best of both worlds. Exactly what I think. An iterable index, and a great one for the kind of graphy queries that cannot be done efficiently using sets and joins. Any thoughts on what constitutes *graphiness*, if I may venture this term? -- Michael Ludwig _______________________________________________ Neo mailing list User@lists.neo4j.org [1]https://lists.neo4j.org/mailman/listinfo/user References 1. https://lists.neo4j.org/mailman/listinfo/user _______________________________________________ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
