Dmitry, please feel free to start new threads here on the dev list with any specific questions you have around the TP3 implementation. It would be interesting to hear what kinds of gaps/problems exist in the translation from cypher to gremlin and how we might make things easier from the Gremlin side. I think TP3 will be around for a long time, so continued improvements there are very much on the table and could provide a proving ground for things in TP4 (or the other way around I suppose as well).
On Thu, May 2, 2019 at 6:15 AM [email protected] < [email protected]> wrote: > Hello all, > > Marko, thank you for introduction, meeting was very interesting for me as > well. > > Yes, I am following this list. Hope I will be able to provide valuable > input in future. > > To be fair to all [contributors][1], I'm not the only author of Cypher for > Gremlin. > > Regarding [extensions][2], discussion with Marko made me understand that > most of these are will be addressed in TP4. I also would be grateful if you > could suggest better translation or workarounds for TP3. > > Regards, > Dmitry > > [1]: > https://github.com/opencypher/cypher-for-gremlin/blob/master/CONTRIBUTORS.txt > [2]: > https://github.com/opencypher/cypher-for-gremlin/tree/master/tinkerpop/cypher-gremlin-extensions > > On 2019/04/30 17:59:30, Joshua Shinavier <[email protected]> wrote: > > +1 > > > > For another data point, Alastair Green, also of Neo4j, was here at Uber > > last week to align on property graph standardization. This was just > before > > the thread on universal structure / algebraic property graphs. He was > open > > to using APG as a high-level data model from which the property graph > > standard (which will be implemented by Neo4j) can be derived by adding > > constraints. Jan Hidders, Ryan Wisnesky, and I have been working on a > > set-based formulation of the model which should enable this. If Neo4j is > to > > be the reference implementation for TP4 property graphs, then it will be > > good to have Dimitry in the loop w.r.t. the data modeling discussions, as > > well. > > > > Josh > > > > > > On Tue, Apr 30, 2019 at 10:11 AM Marko Rodriguez <[email protected]> > > wrote: > > > > > Hello, > > > > > > I had the most interesting meeting this morning with Dmitry Novikov > (the > > > author of Cypher-for-Gremlin). The fellow is sharp and has a thorough > > > understanding of Gremlin (language + mechanics). Here are two points to > > > consider: > > > > > > 1. > > > > https://github.com/opencypher/cypher-for-gremlin/tree/master/tinkerpop/cypher-gremlin-extensions > > > < > > > > https://github.com/opencypher/cypher-for-gremlin/tree/master/tinkerpop/cypher-gremlin-extensions > > > > > > > - This page presents the issues that he is running into > > > trying to get Cypher-for-Gremlin to be 100% openCypher compliant. > > > - When he went through each problem one-by-one, I was > able > > > to say that most of his issues are known and have respective solutions > in > > > TP4. > > > - However, there are some concepts he presented that I > was > > > completely unaware of. (e.g. generators!) > > > > > > 2. Neo4j is interested in working closely with TP4. > > > - They want Cypher to be the reference implementation > > > language for TP4 property graphs. > > > - I think this is a great idea. > > > - I see SPARQL being the reference implementation > language > > > for TP4 RDF stores. > > > - I see SQL being the reference implementation language > > > for TP4 RDBMs. > > > - Finally, I see Gremlin as the multi-model assembly > > > language for the TP4 VM. > > > - graphs, triples, tables, documents, .. > Gremlin > > > can do it all. > > > > > > I really like Dmitry and believe collaborating with him will benefit > the > > > project. When tp4/ stabilizes, I offered that he start working on a > > > org.apache.tinkerpop.language.cypher <dependency/>. With both of us > working > > > side-by-side, we should be able to rectify all the points he > identifies in > > > (1) above and at the same time, riff on each others’ knowledge to gain > a > > > deeper understanding of what all of this is all about! > > > > > > Any thoughts?, > > > Marko. > > > > > > http://rredux.com <http://rredux.com/> > > > > > > > > >
