RE: Question re Triplestore/LDP on top of Postgre

I've used Jena with PostgresSQL backend.  Some kinds of queries were very poor -- basically object position matching.  This was a few years ago and things may have improved. 

I've not seen a lot of talk about MarkLogic here, but it's an extremely viable option for RDF right now (disclaimer being that I work for MarkLogic) and if your needs fit the developer license profile, its free. And you won't need two separate systems.

Charles


Charles Greer
Senior Engineer
MarkLogic Corporation
charles.greer@marklogic.com
Phone: +1 650 287 2569
Cell:  +1 707 318 0442
www.marklogic.com

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________________________________________
From: Andreas Kuckartz [a.kuckartz@ping.de]
Sent: Wednesday, June 04, 2014 1:33 AM
To: Harry Halpin
Cc: Semantic Web
Subject: Re: Question re Triplestore/LDP on top of Postgre

Maybe a bit late but two questions:

Can the queries themselves be improved without replacing the backend?

Is source code available?

BTW: compatibility with Hydra also would not be bad!

Cheers,
Andreas
---

Harry Halpin:> Folks,
>
>  I'm working on a real-world social application, and in our first
> version we used Jena as a native. It was actually too slow.
>
> The programmers, who are doing everything in Node.JS who don't know
> about RDF but have nothing against it, would like to use PostgreSQL
> plus Redis (or maybe CouchDB) for the backend.
>
> I'd like to tell them "We can do that and put a triplestore on top of
> it as well" so you guys can write to Postgre but those who want can
> still query and manipulate as triples.
>
> Does such software exist?
>
> Bonus points if LDP compatible.
>
>    cheers,
>     harry

Received on Wednesday, 4 June 2014 21:12:06 UTC